RESUMEN
Phallic reconstruction is an important part of management for congenital aphallia. Scrotal flap phalloplasty has been described in pediatric patients to create the appearance of a nonfunctioning phallus. We describe a modified scrotal flap technique with the addition of an acellular dermal matrix patch (AlloDerm) to provide additional girth and support to the phallus. The postoperative cosmetic outcome has been satisfactory and there is no documented complication over a 12-month follow-up. AlloDerm dermal matrix can be a safe addition to phallic reconstruction and its overall application needs to be further studied.
Asunto(s)
Dermis Acelular , Colágeno , Pene/anomalías , Procedimientos de Cirugía Plástica/métodos , Escroto/cirugía , Colgajos Quirúrgicos , Humanos , Recién Nacido , MasculinoRESUMEN
OBJECTIVE: Optical coherence tomography (OCT) is a unique technology, developed to provide high resolution, cross sectional images of human tissue. The objective of this study was to explore the feasibility of OCT for the evaluation of positive surgical margins and extra capsular extension in robotic prostatectomy specimens and compare it to histopathology. MATERIALS AND METHODS: Radical prostatectomy was performed in 100 patients. Twenty OCT images of each specimen were taken from the base of the seminal vesicles (SV), apical and vesicle margins, peripheral and posterolateral area and any palpable nodule. Predictions were made regarding positive surgical margin, SV involvement, capsular invasion and compared with the final histopathology. RESULTS: A total of 2000 OCT images were taken and analyzed. Out of 100 specimens, 85 had T2 disease, 15 had T3 disease with a median Gleason's score of 7 (range 6 to 9) and 10 had positive surgical margins. We predicted 21 specimens to have positive margins based on OCT images out of which 7 were truly positive and 14 were falsely positive. Based on OCT images, 79 specimens were predicted to have negative margins out of which 76 were truly negative and 3 were falsely negative. We found the sensitivity, specificity, positive predictive value and negative predictive value to be 70%, 84%, 33% and 96% respectively. CONCLUSION: Our initial feasibility study established the template for the visual OCT characteristics of the prostate, SV and cancerous tissue. The negative predictive value of evaluating surgical margins was high.
Asunto(s)
Aumento de la Imagen/métodos , Prostatectomía/métodos , Neoplasias de la Próstata/cirugía , Robótica , Tomografía de Coherencia Óptica/instrumentación , Estudios de Factibilidad , Humanos , Masculino , Persona de Mediana Edad , Próstata/patología , Próstata/cirugía , Neoplasias de la Próstata/patología , Sensibilidad y Especificidad , Tomografía de Coherencia Óptica/métodosRESUMEN
OBJECTIVE: Optical coherence tomography (OCT) is a unique technology, developed to provide high resolution, cross sectional images of human tissue. The objective of this study was to explore the feasibility of OCT for the evaluation of positive surgical margins and extra capsular extension in robotic prostatectomy specimens and compare it to histopathology. MATERIAL AND METHODS: Radical prostatectomy was performed in 100 patients. Twenty OCT images of each specimen were taken from the base of the seminal vesicles (SV), apical and vesicle margins, peripheral and posterolateral area and any palpable nodule. Predictions were made regarding positive surgical margin, SV involvement, capsular invasion and compared with the final histopathology. RESULTS: A total of 2000 OCT images were taken and analyzed. Out of 100 specimens, 85 had T2 disease, 15 had T3 disease with a median Gleason's score of 7 (range 6 to 9) and 10 had positive surgical margins. We predicted 21 specimens to have positive margins based on OCT images out of which 7 were truly positive and 14 were falsely positive. Based on OCT images, 79 specimens were predicted to have negative margins out of which 76 were truly negative and 3 were falsely negative. We found the sensitivity, specificity, positive predictive value and negative predictive value to be 70 percent, 84 percent, 33 percent and 96 percent respectively. CONCLUSION: Our initial feasibility study established the template for the visual OCT characteristics of the prostate, SV and cancerous tissue. The negative predictive value of evaluating surgical margins was high.