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A Case of Coma Bullae Associated with Brachioradial Artery
Mu Niu1, Li-Jun Deng2, Rui-Bin Wu2
1Department of Dermatology, The Fifth People's Hospital of Hainan Province, Affiliated Dermatology Hospital of Hainan Medical University, Haikou, People's Republic of China.
Abstract:
We present the first case of coma bullae observed in a 67-year-old woman due to pressure and ischemia associated with brachioradial artery. A skin biopsy taken from the ulcer border revealed extensive loss of the epidermis, fibrosis of dermis, mild infiltration by lymphocytes and neutrophils, and necrosis of the focal eccrine ducts. CT angiography of the right upper limb showed a high origin of the radial artery, meanwhile both high originating radial artery and the anastomoses were tortuous and were of relatively small caliber. The diagnosis of coma bullae was made. After tissue debridement, the skin lesions gradually recovered, leaving atrophic scars.
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