Giant Cell Tumor of the Carotid Body: A Rare Tumor with Malignant Potential.

Introduction: Carotid body tumors (CBTs) are certainly unusual. They are vascular lesions originating from paraganglionic cells, located at the common carotid artery (CCA) bifurcation. They represent less than 0.5% of head and neck tumors, approximately 1-3 cases per million. Malignant CBTs are extremely rare; in the literature, published rates on average are < 10%. The diagnostic criteria for malignancy should be based on the finding of distant metastasis. Due to its unpredictable nature and its malignant potential, diagnosis before metastasis and complete surgical resection are the keys to a favorable prognosis. Case Report: Given little experience in CBTs, its biology and treatment remain uncertain. We present the case of a 48-years-old patient, with a mass on the left side of the neck that was found to be a vast CBT with suspicious histopathology. Its size, rare location, pathologic findings, and management strategy applied for its treatment, illustrate an unusual case that highlights the importance of its publication. Conclusions: CBT is rare, but subject to cure lesion if resected without metastatic or residual disease. This is why surgery should be performed whenever possible and why it is so necessary to study this pathology thoroughly and to take it into account in the differential diagnosis.

A new mixed surgical treatment for grades iii and iv hemorrhoids: modified selective hemorrhoidectomy combined with complete anal epithelial retention / Um novo tratamento cirúrgico para hemorroidas mistas graus iii e iv: hemorroidectomia seletiva modificada combinada com retenção epitelial anal completa

ABSTRACT Background: Varicose veins appear above and below the dentate line in mixed hemorrhoids, which seriously affects anal function and quality of life. Aim: To propose an improvement in tissue-selecting therapy repair of anal pad combined with complete anal canal epithelial retention comparing with Milligan-Morgan surgery. Methods: A prospective randomized controlled study was designed enrolling 200 patients with grade III and IV hemorrhoids. They were divided into control and observation groups. The control received Milligan-Morgan surgery, and the observation the modified tissue-selecting therapy stapler combined with complete anal canal preservation surgery. All patients were followed for six months to evaluate the treatment differences. Results: In final, control group included 82 and observation 87. The average operation time of the control group was significantly lower than that of the observation, while the bleeding volume was significantly lower in control group. The control group VAS score was 3 (1, 4), and observation 4 (2, 5). There was no significant difference in the incidence of urinary retention, bleeding and wound margin edema after surgery at one month postoperatively. Digital incidence of anal stenosis in the observation group was significantly lower than in control; the same occurred with residual anal margins. The postoperative anal canal diameter was significantly larger than the control group. Wexner anal incontinence score showed that no anal incontinence occurred in both groups, and the control group scored was significantly higher than observation. In final six months follow-up, the observation group did not experience any relapse and four cases were found among controls. The treatment satisfaction of the observation group was better. Conclusions: In grades III and IV hemorrhoids, modified tissue-selecting therapy combined with complete anal canal preservation had better prognosis and treatment satisfaction than Milligan-Morgan procedure, and it is a new surgical method for patients with advanced mixed hemorrhoids.

RESUMO Racional: Veias varicosas aparecem acima e abaixo da linha dentada nas hemorroidas mistas, afetando seriamente a função anal e a qualidade de vida. Objetivo: Propor melhoria na terapia de seleção de tecido de reparo do coxim anal combinado com retenção completa epitelial do canal anal em comparação com a operação de Milligan-Morgan. Métodos: Estudo prospectivo randomizado controlado foi desenhado envolvendo 200 pacientes com hemorroidas graus III e IV. Eles foram divididos em grupos de controle e observação. O controle recebeu operação de Milligan-Morgan, e o de observação procedimento de seleção de tecido modificado combinado com operação completa de preservação do canal anal. Todos os pacientes foram acompanhados por seis meses para avaliar as diferenças de tratamento. Resultados: No final, o grupo controle incluiu 82 e o de observação 87. O tempo médio de operação do grupo controle foi significativamente menor do que o de observação, enquanto o volume de sangramento foi significativamente menor no grupo controle. O escore VAS do grupo controle foi 3 (1, 4) e no de observação 4 (2, 5). Não houve diferença significativa na incidência de retenção urinária, sangramento e edema da margem da ferida no pós-operatório de um mês. A incidência de estenose anal digital no grupo observação foi significativamente menor do que no controle; o mesmo ocorreu com as margens anais residuais. O diâmetro do canal anal pós-operatório foi significativamente maior nele do que o grupo controle. A pontuação de incontinência anal de Wexner mostrou que nenhuma incontinência ocorreu em ambos os grupos, e a pontuação do grupo de controle foi significativamente maior do que no de observação. Nos últimos seis meses de acompanhamento, o grupo observação não teve nenhuma recaída e quatro casos foram encontrados entre os controles. A satisfação com o tratamento do grupo observação foi maior. Conclusões: Nas hemorroidas graus III e IV, o tratamento de seleção de tecido modificado combinado com a preservação completa do canal anal teve melhor prognóstico e satisfação do que com o procedimento de Milligan-Morgan, e é um novo método cirúrgico para pacientes com hemorroidas mistas avançadas.

Application of EGFR inhibitor reduces circulating tumor cells during transcatheter arterial embolization.

PURPOSE: Transcatheter arterial embolization (TAE) has been widely used in treating non-curative hepatocellular carcinoma (HCC). However, it is noticed that TAE may cause invasion of some cancer cells into circulation, resulting in distal metastasis and poor therapeutic outcome. Here, we aimed to reduce the side effects of TAE using the inhibitors for epidermal growth factor receptor (EGFR). METHODS: Transient hepatic artery ligation (HAL) was used as a mouse model for TAE. EGFR inhibitors were applied. Tumor size, presence of tumor cells in circulation, distal tumor formation, and activation of genes associated with tumor cell invasion and metastasis were analyzed. RESULTS: Inhibitors for EGFR significantly reduced the size of primary tumor, presence of tumor cells in circulation, and distal tumor formation after HAL. Further studies showed that EGFR inhibition suppressed several genes associated with tumor cell invasion and metastasis, such as vascular endothelial growth factor-A, stromal cell-derived factor 1, and Slug. CONCLUSION: EGFR inhibitor application may reduce circulating cancer cells during TAE and thus improve the therapy for advanced HCC.

Sclerotherapy with 6% polidocanol solution in patients with placenta accreta.

OBJECTIVE: Placenta accreta is one of the main obstetrical complications worldwide. The aim of this study was to report the experience of managing placenta accreta with a 6% polidocanol solution sclerotherapy. MATERIALS AND METHODS: We selected patients between 37 weeks of gestation and 38 weeks of gestation, diagnosed with placenta accreta, treated at the Maternal Perinatal Hospital "Monica Pretelini Sáenz", Toluca, Mexico, during the period from November 2013 to August 2014. The surgical technique has two steps: (1) fundic-arciform caesarean section followed by a 6% polidocanol sclerosing solution through a 6Fr neonatal feeding tube upon its reaching the placental bed; (2) total abdominal hysterectomy with internal hypogastric artery ligation. RESULTS: Data were collected from 11 patients with a mean age of 33.9 years (range, 26-42 years) and 2.8±0.6 days of hospitalization in the obstetrical intensive care unit. The majority of patients were classified as having pregnancies at an advanced age. All women were multigravidas. Bleeding volume exhibited a range between 2.5 L and 3 L without any case of neonatal death but one mother died because of coagulopathy. CONCLUSION: We conclude that the technique that we are reporting is feasible for implementation in obstetric hospitals, with technical and economic feasibility.

Anatomic vascular considerations in uterine artery ligation at its origin during laparoscopic hysterectomies.

Pelvic pathology such as fibroids, endometriosis, adhesions from previous pelvic surgeries, or ovarian remnants can distort anatomy and pose technical challenges during laparoscopic hysterectomies. Retroperitoneal dissection to ligate the uterine artery at its vascular origin can circumvent these obstacles, resulting in a safer procedure. However, detailed anatomic knowledge of the course of the uterine artery and understanding of vascular variations are essential for optimal dissection. We frequently encounter a C-shaped uterine artery variation during retroperitoneal dissection. We describe the key steps in identification and isolation of this variant, approaching the uterine artery origin either from the pararectal space or by utilizing the medial umbilical ligament coursing through the paravesical space. We also review other known uterine artery configurations. These techniques allow for safe completion of complex laparoscopic hysterectomies performed for various gynecologic diseases.

Desarterialización hemorroidal transanal. Una nueva alternativa quirúrgica / Transanal hemorrhoidal dearterialization. A new surgical alternative

La desarterialización hemorroidal es una técnica desarrollada en la última década, que consiste en la ligadura de la arteria hemorroidal a través de un proctoscopio que contiene un Doppler, con la subsecuente pexia de la mucosa. Objetivo: Analizar la factibilidad de la generalización de este procedimiento, mencionando sus ventajas y posibles desventajas en la utilización del mismo. Métodos: Se realizó un estudio descriptivo en el cual se incluyeron 41 pacientes (20 masculinos y 21 femeninas) en edades entre 23 y 55 años, con hemorroides II, III sintomáticas y IV sin síntomas de defecación obstruida, intervenidos en el Servicio de Cirugía 2 del Hospital Domingo Luciani y en la Unidad de Colon, Recto y Ano del Centro Clínico Leopoldo Aguerrevere, desde junio de 2012 hasta marzo de 2014. La técnica consiste en la ligadura de las ramas terminales de las arterias hemorroidales en radiales 1, 3, 5, 7,9 y 11. El tiempo promedio del procedimiento fue de 39.26 minutos. El seguimiento de los pacientes se realizó a la semana, a los quince días, al mes y a los 3 meses, valorando satisfacción de la técnica en base a dolor, reducción del prolapso y complicaciones. Resultados: Se logró el seguimiento de 41 pacientes en consulta, el 48.8% con rango de edad entre 31-40 años, 61% con hemorroides III, 27% hemorroides II y el 12% hemorroides IV. Durante el procedimiento quirúrgico se realizaron 6 pexias en el 80.5%. Los plicomas se resecaron en todos los pacientes que lo presentaban. Los síntomas referidos en los primeros 7 días en forma individual o asociado a otro síntoma fueron tenesmo 68.3%, molestia perianal en 39%, dolor moderado en 21.9%, dolor intenso en 14.6%, dolor leve y sangrado en 9.7% y trombosis en 2.4%, igualmente 14.6% no refirieron ninguna sintomatología. Al relacionar la exéresis de los plicomas con el dolor perianal observamos dolor intenso en 15.4% de los pacientes a quienes se le retiraron los plicomas y en el 25% de los pacientes a quien no se le realizó exéresis. El grado de satisfacción de la técnica en el post operatorio inmediato es bueno en 39% y muy bueno en 34%, solo fue malo en 3%. Al aplicar una escala de visualización análoga del dolor se observa una tendencia progresiva en los controles sucesivos en EVA 0-1 19.5% a los 15 días, 78% a los 30 días y 85.3% a los 90 días. En los pacientes sometidos a manometría anorrectal se evidencio un incremento en las presiones de reposo. El 83% se reintegró a sus actividades habituales en promedio a las 3 semanas del postoperatorio. No se presentaron complicaciones mayores, el prolapso de algún paquete hemorroidal se presentó en el 29.4% de los pacientes. Conclusiones: THD es un método seguro, poco invasivo, con buenos resultados para el tratamiento de pacientes, bien seleccionados, con hemorroides II, III y IV. Se deben realizar futuros ensayos controlados comparando con otros procedimientos, para demostrar la ventaja real y definir las indicaciones adecuadas realizando pruebas fisiológicas, además de llevar un control a largo plazo(AU)

Hemorrhoid dearterialisation is a technique developed in the last decade, consisting of ligation of hemorrhoidal artery through a proctoscope which contains a Doppler, with the subsequent mucosal pexy. Objective: To analyze the feasibility of the generalization of this procedure, mentioning its advantages and possible disadvantages in the use of the same. Methods: We conducted a descriptive study which included 41 patients (20 male and 21 female) ages between 23 and 55 years, with II, symptomatic III and IV haemorrhoids without symptoms of obstructed defecation, operated in the service of Surgery 2 of the Hospital Domingo Luciani and Unit of Colon, Rectum and Anus at the Centro Clínico Leopoldo Aguerrevere, from June 2012 to March 2014. The technique involves the ligation of terminal branches of the hemorrhoidal arteries in radial 1, 3, 5, 7.9 and 11. The average time of the procedure was 39.26 minutes. The follow-up of the patients was carried out a week, fifteen days, a month and three months, assessing satisfaction of the technique based on pain, reduction of prolapse and complications. Results: Were follow-up 41 patients in consultation, the 48.8% with age range between 31-40 years, 61% with hemorrhoids III, 27% hemorrhoid II and 12% hemorrhoid IV. During the surgical procedure were 6 pexy the 80.5%. The plicomas be resected in all patients presenting with it. The symptoms referred to in the first 7 days individually or associated to other symptoms were tenesmus 68.3%, 39%, moderate in 21.9 pain perianal discomfort %, severe pain in 14.6%, bleeding and mild pain in 9.7% and thrombosis in 2.4%, also 14.6% not reported any symptoms. To relate the resection of plicomas with perianal pain it was observed severe pain in 15.4% of the patients resected to 25% of patients not resected. Immediate postoperative satisfaction was good at 39 % and very good at 34 %, it was just bad at 3 %. To apply a scale of analog display of pain there is a progressive tendency in the successive controls at 0-1 19.5% at 15 days, 30 days 78% and 85.3% at 90 days. In patients undergoing anorectal manometry were demonstrated an increase in resting pressures. 83% returned to their usual activities on average at 3 weeks of the postoperative period. There were no major complications, some package hemorrhoidal prolapse was presented at the 29.4% of the patients. Conclusions: THD is a safe method, minimally invasive, with good results in the treatment of well selected patients with hemorrhoids II, III and IV. Future controlled trials comparing with other procedures, to demonstrate the real advantage and define appropriate physiological indications, as well as to control long-term studies should be performed(AU)