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J Korean Soc Radiol. 2016 Jun;74(6):389-393. English. Case Report. https://doi.org/10.3348/jksr.2016.74.6.389
Moon EH , Kim MW , Kim YJ , Yoo SB , Nam KH .
Department of Nuclear Medicine, Presbyterian Medical Center, Seonam University College of Medicine, Jeonju, Korea. vahn@seonam.ac.kr
Department of Radiology, Presbyterian Medical Center, Seonam University College of Medicine, Jeonju, Korea.
Department of Pathology, Presbyterian Medical Center, Seonam University College of Medicine, Jeonju, Korea.
Department of Dermatology, Presbyterian Medical Center, Seonam University College of Medicine, Jeonju, Korea.
Abstract

F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography scan has been used for the diagnosis, assessment of treatment response, and follow-up of various neoplasms. Proliferating trichilemmal cyst or tumor (PTT) is a rare neoplasm, originated from the outer root sheath of a hair follicle. Because this tumor has unpredictable biological and clinical behavior, the long-term clinical follow-up is necessary to detect metastasis or recurrence. We reported a case of recurrent malignant PTT on scalp that showed increased FDG uptake.

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