Endocrine Abstracts

Oncocytic adrenocortical neoplasms (OAN) were first described by Kakimoto et al. in 1986. Since then, only 160 cases have been reported in the literature. There are 3 categories of OANs: pure oncocytic, mixed oncocytic and ordinary adrenocortical with focal oncocytic changes. Although the majority of OANs are considered benign tumors, certain OANs may present similar characteristics to adrenocortical carcinoma, correct histological caractherisation is therefore crucia...