Sakaguchi Kota, Watari Takashi
Community Care Unnan City Hospital Shimane Japan.
Postgraduate Clinical Training Center Shimane University Hospital Shimane Japan.
J Gen Fam Med. 2020 Jan 30;21(3):80-81. doi: 10.1002/jgf2.300. eCollection 2020 May.
A blackish discolouration on the central part of the dorsal tongue in the front of the circumvallate papillae.
轮廓乳头前方舌背中央部分出现黑色变色。