TY - JOUR T1 - EDITOR’S QUIZ: GI SNAPSHOT JF - Gut JO - Gut SP - 517 LP - 517 VL - 56 IS - 4 A2 - , Y1 - 2007/04/01 UR - http://gut.bmj.com/content/56/4/517.abstract N2 - From the question on page 508 Endoscopic biopsies revealed malignant melanoma (fig 1⇓). A thoraco-abdominal CT scan revealed mild thickening of the anorectal junction with two centimetric right femoral adenopathies. Surgical wide local excision with … ER -