Axillary Hibernoma: MRI Characteristics: A Case Report

A Case Report of Axillary Hibernoma: US, CT, MR, and Histopathologic Findings

“…Prominent flow voids were noted in the periphery of the mass ( 3 ). The MR findings of our case were similar to previous reports ( 3 4 ), and showed heterogeneous enhancement after contrast injection. Unlike simple lipoma, hibernomas do not demonstrate signal intensity indicative of subcutaneous fat on both T1-and T2-weighted images, probably due to intermixing of vascular tissue with the fatty component ( 3 ).…”

“…Honoki et al ( 9 ) reported that both T1-and T2-weighted MR images showed relatively homogenous high signal intensity that was not suppressed in fat-suppression imaging. However, there were two cases with intermediate signal intensity between skeletal muscle and subcutaneous fat on T1-weighted image and they showed heterogeneous increased signal intensity on T2-weighted image ( 3 4 ). Prominent flow voids were noted in the periphery of the mass ( 3 ).…”

“…The most common site is the thigh, followed by the trunk, upper extremity and head and neck ( 1 ). There are only a few reports presenting US, CT and MR imaging findings of axillary hibernoma ( 2 3 4 ). We report herein US, CT and MR findings and pathologic features of axillary hibernoma in a 53-year-old female.…”

Imprint Cytology of Hibernoma -A Case Report-

“…A summary of eight cases of hibernoma reported in the Korean literature is given in Table 1. [10][11][12][13][14][15][16][17] The ages ranged from 16 to 60 years (mean age 38 years). The male-to-female ratio was 1:1.…”