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MRI appearance of multiple eccrine spiradenoma

Departments of ¹Radiology, ²Nuclear Medicine and ⁴Pathology, Xijing Hospital, Xi'an, 710032 and ³Department of Dermatology, Tangdu Hospital, Xi'an, PR China

View larger version (95K): [in this window] [in a new window]   Figure 1. A 24-year-old woman with 12-year history of painless papules in the bilateral upper limbs, face, neck, left thorax and thigh. (a) Transverse T1 weighted MR image (repetition time (TR)/echo time (TE), 500/14) of the upper neck shows diffuse lesions (arrow) with low signal intensity in dermis and subcutaneous tissue. (b) Transverse short tau inversion recovery (STIR, TR/TE/inversion time (TI), 2500/40/160) image of the upper neck shows diffuse lesions (arrow) with high signal intensity in dermis and subcutaneous tissue. (c) Coronal STIR (TR/TE/TI, 2500/40/160) image of the left thorax and limb shows diffuse lesions (arrow) with high signal intensity in dermis and subcutaneous tissue.

View larger version (135K): [in this window] [in a new window]   Figure 2. A 24-year-old woman with 12-year history of painless papules in the bilateral upper limbs, face, neck, left thorax and thigh. Photomicrograph (original magnification, x200, haematoxylin-eosin stain) shows a characteristic biphasic population of an outer rim of small cells with darkly staining nuclei surrounding larger cells with pale cytoplasm.