Comparing the efficacy of plasma exeresis and cryotherapy for the treatment of seborrheic keratosis: A randomized controlled trial.

BACKGROUND: Seborrheic keratoses (SK) is a benign epithelial skin tumor and plasma exeresis is a new technique. AIMS: To compare the efficacy and safety of plasma exeresis and cryotherapy for treating SK. METHODS: This study is a randomized controlled trial (RCT). One side of each patient was randomly treated with plasma exeresis (peak-to-peak voltage of 3.44 kV and a frequency of 62.5 kHz) and the other side with cryotherapy. RESULTS: Thirty-five males were enrolled. At week 3, 37.1 % (N = 13) of lesions treated by plasma exeresis were clear, which was higher than those treated by cryotherapy 17.1% (N = 6). However, this difference was not significant (p-value: 0.06). At week 6, 16 (57.1 %) out of 28 remaining lesions, treated by plasma exeresis were clear, which was significantly higher (p-value: 0.005) than those completely cleared by cryotherapy in 6 out of 29 remaining lesions (20.7%). The mean physician assessment scale score was significantly reduced in both groups in the second follow-up (plasma group first follow-up 0.91 ± 0.89 vs. second follow-up 0.5 ± 0.64 and p-value: 0.0031; cryo group first follow-up 1.4 ± 0.84 vs. second follow-up 1.1 ± 0.72 and p-value: 0.0002). Regarding side effects, no significant difference was seen (p = 0.438). The most common complications in the plasma and cryotherapy groups were erythema (10/19, 52.63%) and hypo pigmentation (5/13, 38.46%). CONCLUSIONS: Both cryotherapy and plasma exeresis are effective. We observed a significantly higher cleared lesions treated with plasma exeresis in 6 weeks and after two sessions.

Basal Cell Carcinoma in the Southern Health Area of Tenerife. Key Clinical and Pathological Factors and Margin Status After Excision. / Carcinoma basocelular en el Área Sur de Salud de Tenerife. Características clínico-patológicas fundamentales y estado de los bordes tras exéresis.

BACKGROUND AND OBJECTIVE: Surgical excision is the treatment of choice for basal cell carcinoma (BCC). Complete excision with clear margins is important for reducing the risk of recurrence. The aims of this study were to describe the characteristics of BCCs in our health care area, calculate the percentage of positive margins after surgical excision, and determine the risk factors for incomplete excision. MATERIAL AND METHODS: Retrospective observational study of BCCs that were surgically removed at Hospital Universitario Nuestra Señora de Candelaria, in Santa Cruz de Tenerife, Spain, between January 1, 2014 and December 31, 2014. Information was collected on demographic, clinical, and histologic variables, surgical approach, margin status, and the department responsible. RESULTS: In total, 966 BCCs were diagnosed in 776 patients. Nine percent of tumors with complete data were biopsied, 89% were surgically excised, and 2% were removed by shave excision. The median age of patients with excised tumors was 71 years and 52% were men. BCCs were most often located on the face (59.1%). Surgical margins were analyzed in 506 cases, 17% of which had positive margins. Incomplete excision was significantly more common in tumors located on the face (22% vs. 10% for other locations) and in high-risk subtypes according to the World Health Organization classification (25% vs. 15% for low-risk subtypes). CONCLUSIONS: The characteristics of BCCs in our health care area are similar to those described elsewhere. Facial location and histologic subtype are risk factors for incomplete excision. Careful surgical planning is therefore important in the initial management of BCCs with these characteristics.

Agreement analysis of three mandibular third molar retention classifications.

INTRODUCTION: Pell & Gregory and Winter classifications are basic in third molar categorization; Sánchez-Torres classification is used in Mexico, but it has not been previously evaluated. OBJECTIVE: To assess the degree of agreement in the radiographic evaluation of impacted mandibular third molar with the use of three classifications: Pell & Gregory, Winter and Sánchez-Torres. METHOD: Observational, descriptive, inter-observer degree of agreement study that included 10 oral and maxillofacial surgeons and 10 training residents, who recorded the radiographic categorization of third mandibular molars (left and right) according to Pell and Gregory, Sánchez-Torres and Winter classifications. Inter-observer degree of agreement was assessed with Fleiss' kappa test. RESULTS: Pell and Gregory classification obtained the lowest degree of agreement (kappa = 0.05 and 0.185), followed by Sánchez-Torres classification (kappa = 0.125 and 0.326); Winter had the best agreement, with kappa = 0.28 and 0.636 for oral and maxillofacial surgeons and training residents, respectively. CONCLUSION: The Winter classification showed an acceptable (moderate) degree of agreement to classify mandibular third molars by training residents.

INTRODUCCIÓN: Las clasificaciones de Pell y Gregory y de Winter son básicas en la categorización de terceros molares; la clasificación de Sánchez Torres es usada en México, pero no había sido evaluada previamente. OBJETIVO: Evaluar el grado de acuerdo en la valoración radiográfica de terceros molares mandibulares impactados, con el empleo de tres clasificaciones: Pell y Gregory, Winter y Sánchez Torres. MÉTODO: Estudio observacional, descriptivo, de concordancia interobservador, que incluyó a 10 cirujanos orales y maxilofaciales y 10 residentes en formación, quienes registraron la categorización radiográfica de terceros molares mandibulares (izquierdos y derechos) de acuerdo con las clasificaciones de Pell y Gregory, Sánchez Torres y Winter. Se evaluó el grado de acuerdo entre observadores mediante la prueba de kappa de Fleiss. RESULTADOS: La clasificación de Pell y Gregory obtuvo el menor grado de acuerdo (kappa = 0.05 y 0.185), seguida de la clasificación de Sánchez Torres (kappa = 0.125 y 0.326); el mejor valor lo obtuvo la clasificación de Winter, con kappa = 0.28 y 0.636 para cirujanos orales y maxilofaciales y residentes en formación, respectivamente. CONCLUSIÓN: La clasificación de Winter mostró un grado de acuerdo aceptable (moderado) para categorizar terceros molares mandibulares en los residentes en formación.

Super U Technique for Ingrown Nails. / Exéresis en U para la onicocriptosis.

INTRODUCTION AND OBJECTIVES: Ingrown nails are a common problem, seen mostly in young adults. Also known as onychcrypotisis, this condition typically affects the great toenail. Four stages have been defined according to the severity and duration of the condition, and treatment varies from conservative to surgical techniques depending on the stage. We present our experience with this condition, describing the characteristics of our population and surgical treatment, in particular the super U technique. MATERIAL AND METHODS: This was a retrospective, descriptive study of patients with ingrown great toenail treated surgically using the super U technique. We also describe postoperative management. RESULTS: Ten patients with a mean age of 35.7 years underwent operation, 9 for unilateral ingrown great toenail and 1 for bilateral disease. Stage II ingrown nail was the most common. Half of the patients had been treated previously using other surgical techniques. The mean time to healing was 6 weeks. The only postoperative complication was infection in 1 patient. Mild to moderate postoperative pain persisted for a week. The majority of patients were satisfied with the cosmetic result. CONCLUSIONS: We believe the super U technique is very useful in stage II ingrown nail and in disease that has recurred after previous surgery, and is the treatment of choice in stage III or IV disease in which excessive hypertrophic tissue is found.

Infrequent Pediatric Subungual Injury Diagnosed by Intraoperative Anatomopathological Material: A Case Report.

Subungual lesions are very common in clinical practice. We present the clinical case of a 10-year-old female patient who presented with progressive nail deformity. The onset of the condition was approximately five years prior to presentation with an injury in the left hallux, according to the mother. She denied pain or change in the color of the area from the onset of the injury to the day of consultation. There was no previous trauma. Examination revealed subungual bone injury to the distal extremity (distal phalanx of the left hallux), and imaging tests (X-ray and soft tissue ultrasound) found bone injury. Subungual exostosis was considered as a possible diagnosis, thus prompting the indication for exeresis of the tumoral process. After surgical removal, the resected specimen was sent for pathological assessment, which found that an intraosseous hemangiolymphangioma was the origin of the tumor. A subungual exostosis is a slow-growth benign osseous tumor mainly located in the distal phalanx of the hallux that especially affects young adults, being less frequent in children. This condition results from a process of bone neoformation involving different stages, the clinical symptoms of which depend on its size and associated processes. Hemangiolymphangiomas are angiomatous lesions of the blood and lymphatic vessels that have a controversial etiology and present slow, painless, and progressive growth; these lesions are mostly benign. It is worth emphasizing that subungual injuries are not always caused by an underlying bone; therefore, potential differential diagnoses, both benign and malignant, should be considered, based on the location of the injury.

Keloid Treatment Using Plasma Exeresis: A Pilot Trial Study.

Introduction: Keloid scars and hypertrophic scars are more commonly seen after surgeries, suture placements, or other skin damages. Scars can be treated using a variety of methods, including topical compounds, surgery, and lasers. The aim of this study is to evaluate the effects of plasma exeresis on the treatment of keloid scars. Methods: This experimental study was conducted on patients with keloid scars, defined as a treatment-resistant subtype of scars with extension beyond the primary skin defect and cauliflower appearance, in different parts of the body. The patients were treated with 2-to-3-session plasma exeresis. Scars were examined based on the Vancouver scar scale (VSS) before and 5 months after the treatment. Results: A total number of 24 scars were enrolled in this study. The number of patients was 16. There was a decrease in the mean thickness of keloids from 2.20 to 0.54 (P=0.000). The mean pigmentation and pliability scores decreased from 1.54 and 2.16 to 0.375 and 0.541, respectively (P=0.001, 000). There was a significant reduction in the keloid scar vascularity score from 1.666 to 0.541 (P=0.000). There was a decrease from 0.708 to 0.00 (P=0.004) in the mean itchiness score. After the intervention, the mean pain score was 0.000, compared to 0.7500 before the intervention (P=0.003). There was a decrease in the total score from 8.958 to 2.000 (P=0.000). Conclusion: The plasma exeresis procedure is effective in destroying small keloid scars. Furthermore, results in less itching and pain, as well as no significant complications or recurrences.

Modern blepharoplasty: From bench to bedside.

The demand for procedures aiming to rejuvenate the upper third part of the face and the periocular region has increased in the past several years. Blepharoplasty is one of the most frequently performed procedures worldwide to date. Surgery is currently the first choice in order to achieve permanent and effective results; however, it is burdened by potential surgical complications feared by patients. There is an increasing trend in individuals to request less invasive, non-surgical, effective, and safe procedures for eyelid treatment. The aim of this minireview is to present a brief overview of non-surgical blepharoplasty techniques that have been reported in the literature in the past 10 years. Numerous modern techniques that provide a rejuvenation of the entire area have been described. Numerous less invasive methods have been proposed in the current literature and in modern-day routine clinical settings. Dermal fillers are a commonly chosen option for providing enhanced aesthetic results, especially considering that volume loss can be one of the main underlying causes of facial and periorbital aging. Deoxycholic acid use may be considered when the problem is represented by periorbital excess fat deposits. The simultaneous excess and loss of elasticity of the skin can be assessed with techniques such as lasers and plasma exeresis. Furthermore, techniques such as platelet-rich plasma injections and the insertion of twisted polydioxanone threads are emerging as viable methods to rejuvenate the periorbital region.

Evaluation of the efficacy and safety of plasma exeresis in periorbital rejuvenation using the Reviscometer®.

BACKGROUND: Periorbital rejuvenation is performed through various methods. Recently, plasma exeresis has been suggested for the treatment of dermatochalasis and periorbital wrinkles. AIMS: To evaluate the clinical efficacy and safety of plasma exeresis in periorbital rejuvenation and palpebral laxity and assess its effectiveness using the Reviscometer® . PATIENTS/METHODS: Fifty-six women with mild-to-severe dermatochalasis and periorbital wrinkles volunteered to participate in this clinical trial. They received plasma exeresis thrice at one-month intervals. The efficacy of the intervention was evaluated according to the Cutaneous Resonance Running Time (CRRT) value changes, photographic changes, patients' satisfaction, and clinical side effects. RESULTS: This study showed significant clinical improvements in dermatochalasis and palpebral laxity after treatment compared with the baseline (p < 0.001). Most of the participants had relative satisfaction, and no significant or permanent side effects were observed. CONCLUSION: The findings of this study suggest that plasma exeresis is a safe and effective nonsurgical method for periorbital rejuvenation. Furthermore, the procedure has no serious adverse effects if performed correctly and for the right patient.

Evaluation of plasma exeresis as a new technique for non surgical treatment of dermatochalasis.

BACKGROUND: Dermatochalasis is frequently associated with tissue ageing and leads to multiple functional and cosmetic issues. There are several possible medical and surgical treatments available, such as blepharoplasty and laser therapy. OBJECTIVE: The aim of this work was to evaluate plasma exeresis as a new technique for nonsurgical treatment of dermatochalasis of the upper eyelid. PATIENT AND METHODS: This clinical trial included 40 female patients with dermatochalasis. Each patient received 3 sessions of treatment with the technology of plasma exeresis with one-month interval. Final evaluation was performed three months after the last session by 2 blinded dermatologists and 2 ophthalmologists, lid laxity according to facial laxity rating scale (FLRS), marginal crease distance (MCD) before and after treatment and patient satisfaction score. RESULTS: There was a significant decrease in eye lid laxity (FLRS) after treatment where p < .001; 36 (90%) patients had change and 4 (10%) patients without change in general. There was a significant increase in MCD after treatment (p = .001). CONCLUSION: Plasma exeresis seems to improve appearance of the upper eyelid, without any serious adverse events and could be a valid solution for dermatochalasis especially in mild and moderate cases.

A Descriptive Study on the Applications of Plasma Exeresis in Dermatology.

BACKGROUND: Plasma exeresis is an aesthetic procedure used for the non-surgical treatment of a variety of skin problems. This technology allows for the improvement of skin imperfections and wrinkles and can be used to treat certain dermatological disorders. OBJECTIVE: The purpose of this descriptive study was to describe the demographics and postprocedural recovery experiences of patients who underwent plasma exeresis at a single clinic over a period of eight months. Additionally, data on patient satisfaction with the treatment was recorded. Methods: A descriptive, cross-sectional study was conducted. Participants in the study included all individuals who underwent plasma exeresis at the Tsioumas Clinic in Greece over a period of eight months from September 2018 to April 2019. Frequency distribution tables were used to describe the types of cases and the number of patients who underwent plasma exeresis treatment each month. RESULTS: A total of 710 patients underwent plasma exeresis within 124 actual working days during the study period. Of these, 73.4% (n=528) were women, and 25.6% (n=182) were men. The most cases were recorded in January, March, November, and February, representing 15.5 percent, 15.4 percent, 15 percent, and 14 percent of the total cases, respectively. Over 33 percent and 18 percent of patients were treated in the upper and lower eyelids, respectively. With regard to patient satisfaction, more than 52.9 percent of the patients reported being extremely satisfied with the plasma exeresis treatment. CONCLUSION: The results from our study demonstrate that plasma exeresis is most popular in our clinic from November to March, and the upper and lower eyelids were the most frequently treated areas during the eight-month study period. While not all patients who were originally treated were able to be reached to report their level of satisfaction, the majority of the proportion of patients that were able to be contacted reported being satisfied with the treatment. Future research with more objective efficacy measurements are needed to support our findings.

Synergic effect of plasma exeresis and non-cross-linked low and high molecular weight hyaluronic acid to improve neck skin laxities.

BACKGROUND: Many therapeutic options are today available for neck aging, but little evidence exists about the efficacy of combining such procedures. Nonsurgical treatment of neck laxities and wrinkles is often preferred by patients, and combined strategies are nowadays emerging as the standard of care. Both plasma exeresis and hyaluronic acid (HA) injection are two emerging techniques in this setting. AIMS: To investigate the synergic effect of plasma exeresis and non-cross-linked HA injection, in stabilized hybrid complex of low and high molecular weight, in terms of both tolerability (assessed using VAS scale of pain) and improvement of neck skin laxities, according to the GAIS score assigned by patients and clinicians. PATIENTS/METHODS: Ten consecutive patients with signs of neck skin laxities (≥ type 3 according to the Glogau wrinkle scale) aged between 35 and 65 years were enrolled in our study. Two treatment sessions were performed. During the first session, both plasma exeresis and HA injection were performed. Patients were re-evauated after 30 days, and HA injection in the wrinkles of the neck was repeated. After 30 days from the second treatment session, a follow-up visit was performed to assess global efficacy of the two-step combined treatment and to monitor eventual long-term side effects. RESULTS: A GAIS score of 1 or 2 was present in 90% of the treated cases, according to both patients and clinicians. Mean VAS value for pain was 2.4/10. Minor side effects such as erythema and/or edema were transient and completely resolved. No major adverse events were observed. CONCLUSIONS: We strongly encourage the combined treatment with plasma exeresis and non-cross-linked HA injection for its promising remodeling effects in the field of neck rejuvenation.

Azul de metileno, opción para la marcación de cáncer colorrectal pre procedimiento mínimamente invasivo. Reporte de caso

El cáncer colorrectal es una patología común que causa aproximadamente 861,000 muertes al año. Se presenta el caso de un paciente masculino de 50 años, con hipertensión arterial y Diabetes mellitus tipo II, con diagnóstico de neoplasia en colon descendente, al cual se le realizó procedimiento mínimamente invasivo, posterior a marcación tumoral con azul de metileno por medio de endoscopia de vías digestiva bajas. Postoperatorio adecuado, sin complicaciones. El tratamiento de elección para el cáncer colorrectal sin metástasis es la exeresis oncológica. Actualmente, el manejo quirúrgico recomendado es por medio de procedimiento mínimamente invasivo, sin embargo, es un desafío puesto que en algunos casos la identificación de la lesión es difícil y adicionalmente requiere una curva de aprendizaje pronunciada. Por lo anterior, utilizamos el azul de metileno para la marcación del tumor previo procedimiento, con excelentes resultados, sin complicaciones. La marcación tumoral con azul de metileno previa al procedimiento mínimamente invasivo es seguro, útil, económico y de bajo riesgo.

Colorectal cancer is a common pathology, causing approximately 861,000 deaths a year. The case a 50-year-old male patient, with arterial hypertension and type II diabetes mellitus, with a diagnosis of neoplasia in the descending colon, which was performed minimally invasive procedure, after tumor marking with methylene blue by means of endoscopy of lower digestive tracts. Adequate postoperative period, without complications. The treatment of choice for colorectal cancer without metastasis is oncological exeresis. Currently the recommended surgical management is by means of a minimally invasive procedure, however, it is a challenge since in some cases the identification of the lesion is difficult and additionally requires a pronounced learning curve. Therefore, we use methylene blue for the marking of the tumor after the procedure, with excellent results, without complications. Methylene blue tumor marking prior to the minimally invasive procedure is safe, useful, inexpensive, and low risk.

Tumor Desmoide de mama en paciente gestante. A propósito de un caso / Desmoid Tumor in a pregnant pacient´s breast. Case report

El Tumor Desmoide, es un tumor raro de origen mesenquimal con una incidencia aproximada de 0.3% (1) que, si bien es considerado un tumor benigno por no presentar metástasis a distancia, se considera un tumor localmente agresivo con altas tasas de recidiva tras la extirpación quirúrgica de entre el 19 a 28% (2). Se presenta el caso clínico de una mujer de 21 años de edad, gestante de 7 semanas, que acudió a consulta a la Unidad de Mastología del Hospital de Clínicas por percatarse de nódulo en cuadrante superoexterno de mama derecha, que aumenta de tamaño. Se realizó exéresis tumoral con márgenes, cuyo diagnóstico fue un Tumor Desmoide y, posterior resección de márgenes para ampliación. El Tumor Desmoide es poco frecuente de localización mamaria, que fue tratada con cirugía con buena evolución en una mujer gestante, por lo que debe considerarse esta patología en pacientes jóvenes gestantes, como diagnóstico diferencial en nódulos mamarios.

Desmoid tumor is a rare tumor of mesenchymal origin with an approximate incidence of 0.3% (1). Although it is considered a benign tumor because it does not present distant metastases, it is considered a locally aggressive tumor with high rates of recurrence after surgical removal of between 19 to 28% (2). We present the clinical case of a 21-year-old woman, 7 weeks pregnant, who attended the Mastology Unit of the Hospital de Clínicas, after noticing a nodule in the upper outer quadrant of the right breast, which was increasing in size. Tumor excision with margins was performed, whose diagnosis was a Desmoid Tumor, and subsequent resection of margins for amplifying The Desmoid Tumor is rare in the breast and was treated with surgery with a good evolution in a pregnant woman, so this pathology should be considered in young pregnant patients, as a differential diagnosis in breast nodules.

[Lymphadenitis due to non-tuberculous mycobacteria: Experience over 15 years]. / Linfadenitis por micobacterias no tuberculosas: experiencia de 15 años.

OBJECTIVE: To study the epidemiology, clinical features, diagnosis, therapeutic management, and outcome of non-tuberculous mycobacterial lymphadenitis in a paediatric population of Aragón (Spain). MATERIAL AND METHODS: A retrospective study was conducted on patients under 15 years-old diagnosed with non-tuberculous mycobacterial lymphadenitis between the years 2000 and 2015. INCLUSION CRITERIA: patients with lymphadenitis and positive culture. Quantitative values are shown as mean, rank, and standard deviation, and qualitative data as frequencies. RESULTS: Twenty-seven cases were registered, with a mean age of presentation of 39.9 months (range 10 months-8 years). The mean time between the symptoms onset and first consultation was 1.7±1.1 months. The most frequent location was sub-maxilar in 17/27 cases (63%), on the right side in 59.3%, and size 2.96±1.26cm. Fistulae were observed in 16/27 cases. Tuberculin test was greater than 10mm in 7/24 (29.1%). Microbiological cultures were positive for Mycobacterium avium in 14/27 (51.9%), Mycobacterium intracellulare 3/27 (11.1%), and Mycobacterium lentiflavum 3/27 (11.1%). Combined treatment of antibiotics and surgery was given in 16/27 cases (59.8%), medical treatment only in7/27 (25.9%), and surgical exeresis alone in 4/27 (14.8%). Two patients required a new surgery, and one showed severe neutropenia secondary to rifabutin. Only one case (3.7%) suffered from temporary facial palsy as sequel. CONCLUSIONS: The most frequent treatment was the combination of antibiotics and surgery. Delay in diagnosis seemed to be responsible for the limited number of exeresis as first option, only one for every seven patients.

Ránula cervical gigante: a propósito de un caso / Huge plunging ranula: about a case

La ránula es una lesión pseudoquística causada por la retención de contenido salival de la glándula sublingual en el tejido conjuntivo subyacente, siendo la patología más frecuente de esta glándula. Su localización es a nivel del suelo de la boca, pudiendo en ocasiones extenderse a través del músculo milohioideo hacia la región submaxilar o cervical (ránula plunging o cervical), presentándose clínicamente como una tumoración laterocervical de crecimiento lento. El apoyo de imágenes mediante ecografía, tomografía computarizada, o RM (resonancia magnética) es fundamental para un correcto diagnóstico. Respecto al tratamiento, el procedimiento más aceptado y con menos tasas de recurrencia es la escisión de la ránula cervical por abordaje laterocervical, asociada a la extirpación de la glándula sublingual implicada vía transoral. Aquí presentamos el caso clínico de un varón de 25 años quien presenta una masa laterocervical derecha de seis meses de evolución de crecimiento progresivo e indoloro. La ecografía y RM confirman una ránula cervical gigante de 62x45x101 mm, que se localiza en espacio submandibular derecho, alcanzando el espacio parafaríngeo en su vertiente más craneal. Debido a las características de la lesión y su anatomía se decide tratamiento quirúrgico.

The ranula is a pseudocystic lesion caused by the retention of salivary content of the sublingual gland in the underlying connective tissue, being the most frequent pathology of this gland. Its location is at the level of the floor of the mouth and can sometimes extend through the mylohyoid muscle towards the submaxillary or cervical region (plunging or cervical ranula), clinically presenting as a slow-growing laterocervical tumor. The support of images by ultrasound, computed tTomography or MRI (magnetic resonance imaging) is essential for a correct diagnosis. Regarding treatment, the most accepted procedure, and with the lowest recurrence rates is excision of the cervical ranula by the laterocervical approach, associated with the transoral removal of the involved sublingual gland. Here, we present the clinical case of a 25-year-old man who presented a six-month-old right laterocervical mass of progressive and painless growth. Ultrasound and MRI confirmed a giant cervical ranula measuring approximately 62x45x101 mm, located in the right submandibular space, reaching the parapharyngeal space in its most cranial aspect. Due to the characteristics of the injury and its anatomy, surgical treatment was decided.

Granuloma piógeno oral. Serie de casos / Oral pyogenic granuloma. Case series

RESUMEN El granuloma piógeno es una lesión que se manifiesta en la piel y en la cavidad oral, relacionado con diversas causas, como irritación crónica, trauma y cambios hormonales. Clínicamente se muestra como una lesión hiperplásica altamente vascularizada, con un tamaño de 1-3 cm, de base pedunculada o sésil y de crecimiento lento. Predomina en el sexo femenino y tiende a aparecer, sobre todo, en la encía, con muy pocos casos reportados en zonas edentes, motivo por el que se realizó el reporte de tres casos de granuloma piógeno oral en pacientes femeninas, comprendidas entre 30 y 40 años de edad. Se presentaron lesiones que diferían en cuanto a su localización y apariencia clínica (AU).

ABSTRACT Pyogenic granuloma is a lesion that arises in the skin and oral cavity, related to various causes, such as chronic irritation, trauma and hormonal changes. Clinically it looks like a highly vascularized hyperplastic lesion, sized 1-3 cm, with a pedunculated or sessile base and slow growing. It predominates in the female sex and tends to appear, above all, in the gum, with very few cases reported in edentulous areas; that is why the authors reported three cases of oral pyogenic granuloma in female patients, aged between 30 and 40 years. The lesions differed in their location and clinical appearance (AU).

Tumor de células gigantes de la vaina con infiltración tendinosa / Giant cell tumor of the sheath with tendinous infiltration

Se describe el caso clínico de una paciente de 58 años de edad, quien acudió a la consulta de Ortopedia y Traumatología del Hospital General Docente Dr. Juan Bruno Zayas Alfonso de Santiago de Cuba porque hacía alrededor de 5 años comenzó a notar aumento progresivo de volumen en el dorso de la mano izquierda, cercano a la articulación metacarpofalángica del tercer dedo, que le dificultaba la extensión y resultaba antiestético. Mediante la ecografía se observó una imagen ecogénica, bien delimitada, que infiltraba el espesor del tendón, por lo que se realizó la exéresis del tumor. Se comprobó la infiltración de dicho tendón, el cual se resecó y se sustituyó con autoinjerto del tendón accesorio que envía el tendón del dedo anular. Los resultados de los estudios histológicos informaron que se trataba de un tumor de células gigantes de la vaina con infiltración tendinosa. Se inmovilizó durante 3 semanas y la recuperación funcional se completó a los 45 días.

The case report of a 58 years patient is described. She went to the Orthopedics and Traumatology Service of Dr. Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba because she began to notice progressive increase of volume in the back of the left hand around 5 years ago, near the metacarpusphalangic articulation of the third finger that made its extension difficult and was unsightly. By means of the scan, a well defined echogenic image that infiltrated the thickness of the tendon was observed, reason why the exeresis of the tumor was carried out. The infiltration of this tendon was confirmed, which was dried up and substituted with self-graft of the accessory tendon that sends the ring finger tendon. The results of the histologic studies reported that it was a giant cell tumor of the sheath with tendinous infiltration. The hand was immobilized during 3 weeks and the functional recovery was completed at 45 days.

Análisis de concordancia de tres clasificaciones de terceros molares mandibulares retenidos / Agreement analysis of three mandibular third molar retention classifications

Resumen Introducción: Las clasificaciones de Pell y Gregory y de Winter son básicas en la categorización de terceros molares; la clasificación de Sánchez Torres es usada en México, pero no había sido evaluada previamente. Objetivo: Evaluar el grado de acuerdo en la valoración radiográfica de terceros molares mandibulares impactados, con el empleo de tres clasificaciones: Pell y Gregory, Winter y Sánchez Torres. Método: Estudio observacional, descriptivo, de concordancia interobservador, que incluyó a 10 cirujanos orales y maxilofaciales y 10 residentes en formación, quienes registraron la categorización radiográfica de terceros molares mandibulares (izquierdos y derechos) de acuerdo con las clasificaciones de Pell y Gregory, Sánchez Torres y Winter. Se evaluó el grado de acuerdo entre observadores mediante la prueba de kappa de Fleiss. Resultados: La clasificación de Pell y Gregory obtuvo el menor grado de acuerdo (kappa = 0.05 y 0.185), seguida de la clasificación de Sánchez Torres (kappa = 0.125 y 0.326); el mejor valor lo obtuvo la clasificación de Winter, con kappa = 0.28 y 0.636 para cirujanos orales y maxilofaciales y residentes en formación, respectivamente. Conclusión: La clasificación de Winter mostró un grado de acuerdo aceptable (moderado) para categorizar terceros molares mandibulares en los residentes en formación.

Abstract Introduction: Pell & Gregory and Winter classifications are basic in third molar categorization; Sánchez-Torres classification is used in Mexico, but it has not been previously evaluated. Objective: To assess the degree of agreement in the radiographic evaluation of impacted mandibular third molar with the use of three classifications: Pell & Gregory, Winter and Sánchez-Torres. Method: Observational, descriptive, inter-observer degree of agreement study that included 10 oral and maxillofacial surgeons and 10 training residents, who recorded the radiographic categorization of third mandibular molars (left and right) according to Pell and Gregory, Sánchez-Torres and Winter classifications. Inter-observer degree of agreement was assessed with Fleiss' kappa test. Results: Pell and Gregory classification obtained the lowest degree of agreement (kappa = 0.05 and 0.185), followed by Sánchez-Torres classification (kappa = 0.125 and 0.326); Winter had the best agreement, with kappa = 0.28 and 0.636 for oral and maxillofacial surgeons and training residents, respectively. Conclusion: The Winter classification showed an acceptable (moderate) degree of agreement to classify mandibular third molars by training residents.