Skin disorders commonly occur in patients with diabetes and can affect approximately 30% of all diabetics.1 Some skin conditions are much more common in diabetics (such as necrobiosis lipoidica diabeticorum), while others are found more frequently in diabetics than in nondiabetics. These conditions include bacterial infections such as furunculosis, cellulitis, and folliculitis, and fungal infections such as moniliasis. Also included in this category is xanthoma diabeticorum, seen less frequently now that there is improved diabetes control. Another group of skin manifestations in diabetics is directly related to the vascular insufficiency and neuropathic sequelae of long-standing diabetes and includes arteriosclerotic ulcers, gangrene, and neuropathic ulcerations. Finally, there is a group of rare dermatologic conditions that appears coincidentally but with an increased frequency in diabetics. These include symptomatic porphyria, Werner's syndrome, and lipoid proteinosis.
In 1963, Rocca and Pereya2 reported an unusual but characteristic bullous eruption of the feet
Paltzik RL. Bullous Eruption of Diabetes MellitusBullosis Diabeticorum. Arch Dermatol. 1980;116(4):475-476. doi:10.1001/archderm.1980.01640280111032