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1.
Dermatol Surg ; 2024 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-38954750

RESUMEN

INTRODUCTION: Ingrown toenail is a very common nail disorder, and partial matricectomy by phenolization is considered the most effective treatment technique. However, the contact time of the phenol with the nail matrix remains debatable. OBJECTIVE: To evaluate the recurrence rate of ingrown toenail after partial matricectomy by phenol for 45 seconds. METHODS: A total of 1,460 surgeries were performed, with a photographic record of 802 pictures for a period of 6 months. The presence of any nail spicule or sign of ingrowth during follow-up was considered a recurrence. RESULTS: A total of 802 surgeries were evaluated, with the most affected nails being the right (49.3%) and left (48%) big toes and most frequently the lateral fold (54.5%). The recurrence rate was 0.75% at 3 months and 1.87% at 6 months, and the medial nail fold had a higher recurrence rate than the lateral nail fold. CONCLUSION: Forty-five seconds of contact time of 88% phenol with the nail matrix was enough and effective, resulting in low recurrence rates. Prospective studies are needed to better assess postoperative morbidity.

2.
Dermatol Surg ; 50(6): 523-526, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38422219

RESUMEN

BACKGROUND: Definitive nail dystrophies, congenital, traumatic, or acquired, affecting mainly elderly patients, may not be sufficiently managed with a periodic conservative treatment. A definitive surgical treatment may be considered an alternative method, especially in symptomatic patients. OBJECTIVE: To evaluate the effectiveness of total matricectomy with 88% phenol solution to treat some nail dystrophies, not otherwise satisfactorily managed. METHODS: A series of 48 surgeries were performed on 37 patients. Pain evaluation, interference with shoes and gait, recurrences, and patients' satisfaction with procedure were evaluated. RESULTS: All patients mentioned some pain or impairment in wearing shoes before surgery. Cosmetic results were remarkable, and most of the patients (95.11%) had a dramatic improvement of their discomfort after the procedure. No severe complications occurred during the 12-month follow-up. LIMITATIONS: Single-center study and the limited number of patients. CONCLUSION: Total matricectomy with 88% phenol solution is an effective surgical method with low rates of postoperative morbidity and high success rates for treating symptomatic nail dystrophies. The satisfaction with the cosmetic results is high, and this is a safe procedure for patients with associated comorbidities.


Asunto(s)
Enfermedades de la Uña , Satisfacción del Paciente , Fenol , Humanos , Femenino , Masculino , Fenol/administración & dosificación , Fenol/uso terapéutico , Persona de Mediana Edad , Estudios Prospectivos , Anciano , Adulto , Enfermedades de la Uña/cirugía , Resultado del Tratamiento , Anciano de 80 o más Años
3.
Mycoses ; 67(1): e13673, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37966016

RESUMEN

BACKGROUND: Trichophyton rubrum and Trichophyton mentagrophytes variant interdigitalis are the most frequent etiologic agents of onychomycosis. Diagnosis of certainty requires mycological examination, which often results unfeasible. OBJECTIVES: The aim of our study is to describe pathogen specific dermoscopic features, allowing a differential diagnosis without the need for cultural examination, in order to prescribe the most appropriate treatment anyway. PATIENTS AND METHODS: We conducted an observational retrospective study on 54 patients with a culture proven diagnosis of distal subungual onychomycosis of the toenail, caused by Trichophyton rubrum or Trichophyton mentagrophytes variant interdigitalis. Using a videodermatoscope we collected data on nail colour (white, yellow, orange, brown, dark) and on dermoscopic patterns (aurora, spikes, jagged, ruin, linear edge, dots, striae). RESULTS: Fifty-four patients, with a total of 72 nails, were eligible for this study. Analysing the association between discoloration of the nail plate and type of infection (T. rubrum or T. interdigitalis), no correlation turned out to be statistically significant. Instead, significant associations between spikes and T. rubrum infection and striae and infection from T. interdigitalis were identified. Finally, a 100% specificity was identified for white colour and ruin pattern for T. rubrum infection, and brown colour, jagged border and aurora pattern for T. interdigitalis. CONCLUSIONS: Trying to find relationships between specific pathogens and dermoscopic patterns, we found out an association between spikes and striae and T. rubrum and T. interdigitalis respectively. Further larger studies are however necessary to evaluate our preliminary findings.


Asunto(s)
Arthrodermataceae , Onicomicosis , Trichophyton , Humanos , Onicomicosis/diagnóstico , Onicomicosis/microbiología , Estudios Retrospectivos
4.
Pediatr Dermatol ; 40(4): 759-761, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36939031

RESUMEN

Intralesional injections of triamcinolone acetonide are widely used to successfully treat several inflammatory nail conditions. This procedure is well described in adults, but less frequently reported in children and teenagers, being largely considered too invasive and fear-provoking for pediatric patients. Our report shows how this procedure is feasible and successful in children, even without a digital block. The step-by-step technique and tips to reduce pain should encourage clinicians to offer it as an alternative option to children with inflammatory nail disorders.


Asunto(s)
Enfermedades de la Uña , Adulto , Adolescente , Humanos , Niño , Inyecciones Intralesiones , Enfermedades de la Uña/tratamiento farmacológico , Triamcinolona Acetonida/uso terapéutico , Miedo , Dolor/tratamiento farmacológico , Dolor/etiología
5.
J Dtsch Dermatol Ges ; 21(2): 116-129, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36808456

RESUMEN

Little is known about benign non-melanocytic nail tumors, probably due to their low pathogenicity. They are commonly misdiagnosed as inflammatory or infective diseases. They have various features, depending on the type of tumor and its location in the nail apparatus. The typical sign of a tumor is the presence of a mass and/or secondary nail changes from damaged nail structures. In particular, if a single digit is affected by a dystrophic sign or a symptom is reported without any explanation, the presence of a tumor should always be ruled out. Dermatoscopy helps to enhance visualization of the condition and in many cases supports the diagnosis. It may also assist in identifying the right place to biopsy, but it never replaces surgery. Most common non-melanocytic nail tumors are analyzed in this paper, including glomus tumor, exostosis, myxoid pseudocyst, acquired fibrokeratoma, onychopapilloma, onychomatricoma, superficial acral fibromyxoma and subungual keratoacanthoma. The aim of our study is to review the main clinical and dermatoscopic characteristics of the most common benign non-melanocytic nail tumors, to correlate them with the histopathology and to advise practitioners of the best surgical management.


Asunto(s)
Tumor Glómico , Enfermedades de la Uña , Neoplasias Cutáneas , Humanos , Neoplasias Cutáneas/patología , Tumor Glómico/patología , Uñas/patología , Enfermedades de la Uña/patología , Biopsia
6.
J Am Acad Dermatol ; 83(6): 1717-1723, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32112995

RESUMEN

Lichen planus is a benign inflammatory disorder of unknown etiology that may affect the skin, mucosae, scalp, and nails. When the nails are affected, it may lead to permanent destruction with severe functional and psychosocial consequences. Therefore, prompt diagnosis and early treatment are essential, even in mild cases. There are currently no guidelines for the management of nail lichen planus and the published literature on treatment is limited. The aim of this review is to provide practical management recommendations for the classical form of nail lichen planus, especially when restricted to the nails. Topical treatment has poor short-term efficacy and may cause long-term side effects. Instead, intralesional and intramuscular triamcinolone acetonide should be considered first-line therapies. Oral retinoids are second-line choices, and immunosuppressive agents may also be considered.


Asunto(s)
Consenso , Liquen Plano/tratamiento farmacológico , Enfermedades de la Uña/tratamiento farmacológico , Guías de Práctica Clínica como Asunto , Triamcinolona Acetonida/administración & dosificación , Administración Oral , Dermatología/métodos , Dermatología/normas , Glucocorticoides/administración & dosificación , Humanos , Inmunosupresores/administración & dosificación , Inyecciones Intralesiones , Inyecciones Intramusculares , Liquen Plano/diagnóstico , Liquen Plano/inmunología , Liquen Plano/psicología , Enfermedades de la Uña/diagnóstico , Enfermedades de la Uña/inmunología , Enfermedades de la Uña/psicología , Uñas/efectos de los fármacos , Uñas/inmunología , Uñas/patología , Retinoides/administración & dosificación , Resultado del Tratamiento
7.
J Am Acad Dermatol ; 81(1): 228-240, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30731172

RESUMEN

Nail involvement in psoriasis is common, and the severity of it does not always parallel the intensity of cutaneous disease. We created a consensus group, of which the aim was to provide practical recommendations for the treatment of nail psoriasis in patients without skin psoriasis or with mild skin lesions with no indication for a systemic treatment. This collaborative process was conducted by an international panel of dermatologists with special expertise in nail disorders, using formal consensus methods. During this process, the panel strived to establish an agreement regarding the definition of nail psoriasis, the severity of nail psoriasis, and treatment response. Treatment recommendations are provided regarding nail psoriasis severity and matrix or bed involvement. Few-nail disease was considered as nail psoriasis affecting ≤3 nails. In the case of matrix involvement only, intralesional steroid injections were considered the treatment of choice. Topical steroids alone or in combination with topical vitamin D analogues were suggested for nail psoriasis limited to the nail bed. For the systemic treatment of nail psoriasis acitretin, methotrexate, cyclosporine, small molecules, and biologics may be employed.


Asunto(s)
Fármacos Dermatológicos/administración & dosificación , Enfermedades de la Uña/diagnóstico , Enfermedades de la Uña/tratamiento farmacológico , Guías de Práctica Clínica como Asunto , Psoriasis/tratamiento farmacológico , Acitretina/administración & dosificación , Administración Oral , Administración Tópica , Adulto , Anciano , Productos Biológicos/administración & dosificación , Consenso , Ciclosporina/administración & dosificación , Manejo de la Enfermedad , Testimonio de Experto , Femenino , Humanos , Inyecciones Intralesiones , Masculino , Metotrexato/administración & dosificación , Persona de Mediana Edad , Psoriasis/diagnóstico , Recurrencia , Medición de Riesgo , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
8.
Australas J Dermatol ; 59(1): e66-e69, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28332321

RESUMEN

Onychomatricoma (OM) presenting as a longitudinal melanonychia is a very uncommon clinical presentation with very few cases in the literature. Our aim in this article is to report four cases of pigmented OM, and describe their clinical and dermoscopic findings and the importance of the differential diagnoses, especially with melanoma.


Asunto(s)
Hiperpigmentación/diagnóstico por imagen , Melanoma/diagnóstico por imagen , Enfermedades de la Uña/diagnóstico por imagen , Neoplasias Cutáneas/diagnóstico por imagen , Adulto , Dermoscopía , Diagnóstico Diferencial , Femenino , Humanos , Hiperpigmentación/patología , Hiperpigmentación/cirugía , Masculino , Persona de Mediana Edad , Enfermedades de la Uña/patología , Enfermedades de la Uña/cirugía , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugía
10.
J Drugs Dermatol ; 16(3): 268-270, 2017 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-28301623

RESUMEN

Subungual melanoma is a rare variant of acral lentiginous melanoma that often has a poor prognosis compared with other types of melanoma. The aim of the present study is to report a case of a patient with recurrence of subungual melanoma treated with imiquimod 5%, which presented a total regression of the lesion and no recurrence for 4 years.

J Drugs Dermatol. 2017;16(3):268-270.

.


Asunto(s)
Aminoquinolinas/uso terapéutico , Antineoplásicos/uso terapéutico , Melanoma/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Neoplasias Cutáneas/tratamiento farmacológico , Anciano de 80 o más Años , Aminoquinolinas/administración & dosificación , Antineoplásicos/administración & dosificación , Biopsia , Humanos , Imiquimod , Masculino , Melanoma/patología , Melanoma/cirugía , Uñas , Recurrencia Local de Neoplasia/patología , Crema para la Piel , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugía , Dedos del Pie
16.
Skin Appendage Disord ; 10(4): 254-261, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39108551

RESUMEN

Background: Nail glomus tumor is a well-known tumor, with well-defined clinical characteristics and surgical treatment; however, some of these lesions occur in different locations and sizes with difficult surgical resolution. Summary: Clinical and imaging tests help in the diagnosis and tumor localization. Key Message: Adequate surgical knowledge for these cases ensures lower rates of recurrence and nail dystrophy.

17.
Skin Appendage Disord ; 10(2): 137-139, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38572196

RESUMEN

Introduction: Bowen's disease is a squamous cell carcinoma in situ, the most common malignancy of the nail unit. Presenting more frequently in the fingernails, common risk factors include ionizing radiation, oral exposure to arsenic or pesticides, dyskeratosis congenita, and quite commonly diverse subtypes of HPV. We report the first case of multiple periungual pigmented Bowen's disease in a pediatric patient. Case Presentation: A healthy 13-year-old boy presented with a 9-month history of a pigmented erythematous patch on the proximal nail fold of his 3rd right finger without associated symptoms. A punch biopsy was taken, and the diagnosis of Bowen's disease was made. The patient received photodynamic therapy and three cycles of imiquimod without response, and two new lesions appeared on the first and second right fingers. Surgical removal was performed on all lesions. A polymerase chain reaction detected an HPV type 16. Discussion/Conclusion: Multiple periungual Bowen's disease is rare, with the most frequent risk factors being HPV infection and chronic immunosuppression. Less than 10% of the cases present as longitudinal melanonychia. To date, there are no previous reports of multiple pigmented periungual Bowen's disease. HPV-induced Bowen's disease is usually present in adults aged between 22 and 89 years as persistent verrucae. In this case, koilocytosis and the fact that all lesions appeared on the right hand are suggestive of HPV infection.

18.
An Bras Dermatol ; 2024 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-39112289

RESUMEN

The diagnosis of pigmented nail lesions is a concern for both general practitioners and dermatologists, due to the possibility of indicating nail melanoma. The origin of the dark pigmentation can be either melanocytic or non-melanocytic (fungi, bacteria, or blood), and clinical evaluation alone may not be sufficient for differentiation, requiring additional exams. Onychoscopy provides valuable information prior to biopsy. The causes of nail pigmentation will be described to aid in the differential diagnosis.

19.
Skin Appendage Disord ; 10(2): 140-143, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38572188

RESUMEN

Introduction: Squamous cell papilloma is a benign tumor whose pathogenesis is generally related to the human papillomavirus. Despite affecting several organs, we did not find cases reported in the nails. Case Presentation: A 67-year-old female presented with a painful lesion in the nail of the right hallux that started in 2021, with an erythematous appearance evolving to black and expansive growth. Due to the evolution and symptoms, she opted for excision, with a histopathological report of squamous cell papilloma. Complementary treatment with imiquimod was performed, with good healing and pain control. Discussion: Due to the lack of previous reports, treatment was based on therapeutic options for papillomas located in other regions. Excision was performed, followed by application of imiquimod with good response. The prognosis is favorable; however, further studies are needed to elucidate the diagnosis and management of nail squamous cell papilloma.

20.
An Bras Dermatol ; 99(5): 696-705, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38789365

RESUMEN

BACKGROUND: Histopathology can be crucial for diagnosis of inflammatory nail diseases. Longitudinal excision and punch biopsies are the most used techniques to obtain the tissue sample. However, there is a low clinical-histopathological correlation, besides the risk of nail dystrophy. Tangential excision biopsy (TB) is a well-established technique for the investigation of longitudinal melanonychia. TB could also be used to evaluate diseases in which histopathological changes are superficial, as in psoriasis. OBJECTIVE: To study the value of TB in the histopathological diagnosis of nail psoriasis. METHODS: This is a prospective and descriptive study of the clinical-histopathological findings of samples from the nail bed or matrix and nail plate of 13 patients with clinical suspicion of nail psoriasis. Biopsies were obtained through partial nail avulsion and TB. RESULTS: In nine patients, the hypothesis of psoriasis was confirmed by histopathology; in one, the criteria for diagnosing nail lichen planus were fulfilled. The tissue sample of only one patient did not reach the dermal papillae, and, in four of 13 patients, the adventitial dermis was not sampled. No patient developed onychodystrophy after the procedure. STUDY LIMITATIONS: In three patients, the clinical and, consequently, histopathological nail changes were subtle. Also, in one patient's TB didn't sample the dermal papillae. CONCLUSIONS: TB is a good option to assist in the histopathological diagnosis of nail psoriasis, especially when appropriate clinical elements are combined. Using this technique, larger and thinner samples, short postoperative recovery time, and low risk of onychodystrophy are obtained.


Asunto(s)
Enfermedades de la Uña , Psoriasis , Humanos , Enfermedades de la Uña/patología , Enfermedades de la Uña/diagnóstico , Psoriasis/patología , Psoriasis/diagnóstico , Estudios Prospectivos , Biopsia , Femenino , Masculino , Adulto , Persona de Mediana Edad , Uñas/patología , Adulto Joven , Anciano , Reproducibilidad de los Resultados
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