MRI findings of subcutaneous epidermal cysts: emphasis on the presence of rupture.
OBJECTIVE
Our aim was to describe the MRI findings of subcutaneous epidermal cysts with an emphasis on determining the presence of rupture.


CONCLUSIONS
Epidermal cysts show a fluidlike signal with variable low-signal components on T2-weighted images and peripheral rim enhancement on gadolinium-enhanced images. Most ruptured cysts have septa, show thick and irregular rim enhancement, and are accompanied by a fuzzy enhancement in surrounding subcutaneous tissues. These imaging features of a ruptured epidermal cyst simulate a mass of infectious or neoplastic origin.
Department of Radiology, Seoul National University College of Medicine and Institute of Radiation Medicine, 28 Yeongon-dong, Chongno-gu, Seoul, South Korea.
Sung Hwan
SH
Hong
Hye Won
HW
Chung
Ja-Young
JY
Choi
Young Hwan
YH
Koh
Jung-Ah
JA
Choi
Heung Sik
HS
Kang
D000293:Adolescent; D000328:Adult; D004814:Epidermal Cyst / Q000150:complications / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012422:Rupture, Spontaneous; D040521:Subcutaneous Tissue