Letter to the editor: Comments in relation to the CPC case entitled: “Submucosal nodule in buccal mucosa” Oral Surg Oral Med Oral Pathol Oral Radiol 2016;122:660-665.1

We read with great interest the clinicopathological conference published by Dairot et. al. entitled "Submucosal nodule in buccal mucosa". We reviewed the virtual slides. Histologically, the tumor shows a cribriform pattern with capsular invasion and extra-capsular invasion, the latter is evident in the virtual slides, but not in the published pictures. Basal Cell Adenoma (BCA) of the minor salivary glands is a rare, and we were able to find a single article2 describing capsular invasion. Wilson and Robinson (2014)3 have reported that morphologic observation of local tissue invasion is the best parameter for differentiation BCA from Basal Cell Adenocarcinoma.

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