ABSTRACT
BACKGROUND: Penile cancer is a rare disease, most commonly encountered in developing countries. It constitutes 0.4% of cancers in U.S. men and 2.1% in Brazil, with the highest prevalence in the North and Northeast regions. Inguinal lymph node metastasis of penile cancer occurs in 20 to 40% of patients and is an important predictor of cancer-specific mortality. The preferred diagnostic and therapeutic tool to assess the regional lymph nodes is a lymphadenectomy which can, in addition to establishing staging, offers curative potential. MATERIALS AND METHODS: A 44 years old man, previously to underwent a partial penectomy for penile cancer, whose pathology showed a moderately differentiated squamous cell carcinoma with neural and angiolymphatic invasion and negative surgical margins. The pathologic stage of the primary tumor was pT3NxMx. Following a one month course of oral antibiotics, the patient underwent a video-assisted bilateral inguinal lymphadenectomy. In the present video, we highlight the left video-assisted inguinal lymphadenectomy. RESULTS: Seventeen lymph nodes were dissected on the left side, two of them positive for cancer without extracapsular extension. On the right side, fourteen lymph nodes were dissected and one was positive for cancer with extracapsular extension, and the patient underwent based on these pathological findings a pelvic lymphadenectomy, which was similarly conducted using a video-assisted laparoscopic approach. CONCLUSIONS: The conventional open lymphadenectomy has a morbidity that can approach 50% in the current series, despite on the refinements in technique. The video-assisted endoscopy is a recent technique aiming to decrease this inherent complication rate promoting a lymph node resection rate which may be equivalent to the open procedure. This video confirms its feasibility, reduced morbidity, and cancer control efficacy.
Subject(s)
Abdominal Neoplasms/secondary , Carcinoma, Squamous Cell/secondary , Lymph Node Excision/methods , Penile Neoplasms/pathology , Penile Neoplasms/surgery , Video-Assisted Surgery , Adult , Humans , Inguinal Canal , Laparoscopy/methods , Male , Neoplasm InvasivenessABSTRACT
Há evidências que algumas drogas usadas para doenças humanas podem modificar a biodisponibilidade de radiofármacos. Nós estudamos o efeito de drogas antimaláricas na biodisponibilidade do 99mTc-MDP em ratos. Mefloquina (MQ) e artemisinina (AM) foram administradas em dois grupos tratados (T) e sorbitol no grupo controle (C) por 7 dias. Em seguida, 99mTc-MDP foi injetado em todos os grupos e o %ATI foi calculado. Um aumento significativo do %ATI no grupo da MQ, do controle para o tratado, ocorreu no baço (0,35±0,10 para 0,58±0,13), fígado (1,69±0,28 para 3,31±0,07) e sangue (0,79±0,17 para 2,09±0,53). O %ATI aumentou significantemente no grupo da AM: no fêmur (2,76±0,59 para 5,98±0,70), fígado (1,69±0,28 para 4,59±0,68), pulmões (0,29±0,05 para 6,22±0,86), no baço (0,35±0,10 para 0,86±0,15) e sangue (0,79±0,17 para 4,65±0,74). Uma significante diminuição do %ATI ocorreu no grupo da MQ: na bexiga (0,75±0,07 para 0,26±0,05), intestino grosso (2,13±0,34 para 0,66±0,19), pâncreas (0,87±0,24 para 0,28±0,18), rins (7,00±1,52 para 3,46±0,62), cérebro (0,27±0,08 para 0,05±0,01) e, também, no grupo da AM: bexiga (0,75±0,07 para 0,30±0,05), intestino grosso (2,13±0,34 para 0,36±0,08), músculo (2,04±0,39 para 0,26±0,06), pâncreas (0,87±0,24 para 0,46±0,12) e rins (7,00±1,52 para 4,35±0,28). Estes resultados podem estar associados aos efeitos biológicos das drogas antimaláricas.
