MRI appearance of clear cell hidradenoma

Abstract

We present the first reported MR imaging findings of a histologically proven clear cell hidradenoma. A fluid level was noted on all pulse sequences in this lesion, which demonstrated a prominent hemorrhagic component on sectioning. The presence of an enhancing nodule was also noted, differentiating this lesion from a post-traumatic hematoma. Fluid levels in a well-defined subcutaneous soft tissue mass should suggest the possibility of a hidradenoma.

Sonographic Findings of an Eccrine Spiradenoma

“…To the best of our knowledge, only around 10 cases of sweat gland-originating tumors have been reported with imaging studies. 1,[8][9][10][11][12][13][14][15] These cases are summarized in Table 1, including patient characteristics such as sex, age, location, and imaging findings. Most cases of reviewed sweat gland tumors showed the main location of the tumors in the subcutaneous tissue (subcutaneous fat layer below the dermis) rather than in the dermis.…”

Immunophenotypic aspects of cylindroma and nodular hidradenoma

“…Clear cell hidradenoma is considered a benign neoplasia, of slow growth, as solitary and firm nodule, with possible serous secretion, and some show tendency to ulcerate. Diagnosis is made by biopsy with histopathological examination, 7 which reveals a well‐delimited picture, comprising lobular masses with lumens of various sizes. In the solid portion of the clear cell hidradenoma, two types of cells are found: fusiform and polygonal 8,9 .…”

Clear Cell Hidradenoma: Characteristic Imaging Features on Ultrasonography, Computed Tomography, and Magnetic Resonance Imaging

“…These small but palpable superficial lesions rarely require radiologic evaluation and are most often diagnosed and treated by excision. There are few reports on the findings of clear cell hidradenoma on ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) . The purpose of this retrospective study was to analyze and describe the imaging features of clear cell hidradenoma seen on US, CT, and MRI.…”