C cell hyperplasia/neoplasia.
LiVolsi
V A
VA
D002278:Carcinoma in Situ / Q000473:pathology; D018276:Carcinoma, Medullary / Q000473:pathology; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008297:Male; D013961:Thyroid Gland / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology*