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MRI findings of subcutaneous epidermal cysts: emphasis on the presence of rupture
Authors:Hong Sung Hwan  Chung Hye Won  Choi Ja-Young  Koh Young Hwan  Choi Jung-Ah  Kang Heung Sik
Affiliation:Department of Radiology, Seoul National University College of Medicine and Institute of Radiation Medicine, 28 Yeongon-dong, Chongno-gu, Seoul, South Korea.
Abstract:
OBJECTIVE: Our aim was to describe the MRI findings of subcutaneous epidermal cysts with an emphasis on determining the presence of rupture. CONCLUSION: 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.
Keywords:
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