Clinical Images  |   December 2018
Bullous Diabeticorum
Author Notes
  • From the Departments of Neurology (Dr Arnold) and Medicine (Drs Vennard and Gilbert) at the Larner College of Medicine at the University of Vermont in Burlington. 
  • Financial Disclosures: None reported. 
  • Support: None reported. 
  •  *Address correspondence to Matthew P. Gilbert, DO, MPH, Larner College of Medicine at the University of Vermont, 62 Tilley Dr, South Burlington, VT 05403-4407. Email:
Article Information
Emergency Medicine / Endocrinology / Gastroenterology / Imaging / Hypertension/Kidney Disease / Neuromusculoskeletal Disorders / Ophthalmology and Otolaryngology / Diabetes / Clinical Images
Clinical Images   |   December 2018
Bullous Diabeticorum
The Journal of the American Osteopathic Association, December 2018, Vol. 118, 832. doi:
The Journal of the American Osteopathic Association, December 2018, Vol. 118, 832. doi:
A 58-year-old man presented to the hospital with chronic bullous ulcerative disease of his fingers complicated further by osteomyelitis (image A). His medical history included pancreatic cancer and type 2 diabetes mellitus complicated by retinopathy, neuropathy, and end-stage renal disease. Hemoglobin A1c had ranged from 7.4% to 14.1% since the lesions first appeared. Recurrent tense, bullous lesions occurred only in his fingers and resolved spontaneously or progressed to osteomyelitis requiring amputation (image B) over the past 7 years. Results of the initial biopsy of the lesions showed intraepidermal vesiculobullous dermatitis with superficial epidermal necrosis. A second biopsy specimen showed spongiosis and sparse chronic inflammation without immunoreactivity. Without history of trauma, chemical injury, or underlying constitutional illness, and in the setting of nonspecific histopathologic findings and immunofluorescence findings that excluded noninflammatory bullous pemphigoid, porphyria cutanea tarda, and other bullous porphyrias, his presentation was consistent with bullous diabeticorum. Other bullous lesions, such as epidermolysis bullosum, were excluded. 

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