ISM / SCIENCE PHOTO LIBRARY ISM / SCIENCE PHOTO LIBRARY
Granuloma annulare. Close-up of a granuloma annulare lesion on the arm of a 64-year-old female patient. Granuloma annulare is a rash of unknown cause arranged in a ring or circle. It is mostly found in otherwise healthy people, although may be associated with diabetes in adults. It usually disappears on its own.
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