TY - JOUR T1 - Answer JF - Gut JO - Gut SP - 1408 LP - 1408 VL - 55 IS - 10 A2 - , Y1 - 2006/10/01 UR - http://gut.bmj.com/content/55/10/1408.abstract N2 - From question on page 1402 Figure 2 shows columnar epithelium (arrow) which is of the non-mucin secreting type, and in fig 3 the surrounding stroma is positive for CD10 (positivity being reflected by the areas of brown staining) consistent with the diagnosis of colonic endometriosis. CD10, a human membrane associated neutral endopeptidase, is widely used in lymphoma phenotyping but it also stains normal, ectopic, … ER -