Magnetic resonance imaging of pilomatricoma.
Two patients (a 16-month-old boy and a 53-year-old man) were referred for MR imaging of a small, subcutaneous nodule at the forearm. Plain films were available in one patient and showed a non-specific well-circumscribed lesion. Upon ultrasonography (1 patient), a nodular, well-circumscribed, hyperechoic lesion was seen. In both cases spin-echo (SE) T1-weighted images (T1WI) showed homogeneous, intermediate signal intensity (SI). On gadolinium-enhanced T1WI (1 patient), no enhancement was observed. Both lesions showed predominant low-to-intermediate SI on T2WI. At histological examination characteristic findings of pilomatricoma were observed.
De Beuckeleer
L H
LH
Department of Radiology, University Hospital of Antwerp, Edegem, Belgium.
De Schepper
A M
AM
Neetens
I
I
D003287:Contrast Media; D005542:Forearm; D005682:Gadolinium; D006201:Hair Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007089:Image Enhancement; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D018296:Pilomatrixoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014463:Ultrasonography
D003287:Contrast Media; D005682:Gadolinium