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Indian J Nucl Med. 2019 Jan-Mar;34(1):51-53. doi: 10.4103/ijnm.IJNM_129_18.

F-18 Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in the Evaluation of Intradiploic Epidermoid Cyst.

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Department of Nuclear Medicine, SVIMS, Tirupati, Andhra Pradesh, India.


Epidermoid cysts are benign rare congenital cysts which typically present between 3rd and 5th decade of life. They mostly arise from cerebellopontine angle or parasellar region, but sporadic cases arise from cranial dipole. Here, we present a case of 42-year-old female with painful soft swelling in the left frontal region, which on F-18 fluorodeoxyglucose (FDG) positron emission tomography-computed tomography is well-circumscribed non-FDG avid lesion. The patient underwent total resection of the cyst, and the defect produced by space-occupying lesion was repaired by cranioplasty.


Cranial dipole; F-18 fluorodeoxyglucose positron emission tomography/computed tomography; epidermoid cyst; frontal bone

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