A

Multiple endocrine neoplasia type 2B is characterized by thick, everted, nodular (“bumpy”/“blubbery” or colloquially “blueberry”) lips produced by mucosal neuromas, a finding notA

Multiple endocrine neoplasia type 2B presents with thick, nodular, everted (“blubbery/blueberry”) lips caused by multiple mucosal neuromas, a feature not seen in the other listed disorders [Elisei 2019 PMID 30597074; Collins 2012 PMID 23024306].