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Clin Nucl Med. 2012 Jul;37(7):684-6. doi: 10.1097/RLU.0b013e3182443cbe.

FDG PET/CT appearance of benign pilomatricoma.

Author information

1
Department of Nuclear Medicine and QLD PET services, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia.

Abstract

A 56-year-old patient was referred for FDG PET/CT with a right preauricular lymph node fine-needle biopsy, suggesting poorly differentiated carcinoma and no obvious primary lesion. There was intense FDG uptake in the right preauricular nodule. The node was excised, and formal histology demonstrated a benign pilomatricoma rather than malignancy. Pilomatricoma is uncommon in adults and an unusual cause for marked FDG uptake, likely due to foreign body inflammation. Pilomatricoma can be either benign or malignant. The marked FDG uptake demonstrated in our patient with benign pilomatricoma also suggests that FDG PET cannot reliably grade this rare condition.

PMID:
22691514
DOI:
10.1097/RLU.0b013e3182443cbe
[Indexed for MEDLINE]

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