Source: Cutaneous Radiation Injury: Fact Sheet for Physicians (HHS/CDC)
Clinical history: Buttock area of the wife of a Peruvian patient exposed to iridium-192 source. This photo was taken 26 days after her acute exposure to the Ir-192 source when she sat on her husband's pants (still containing the source) for approximately 20 minutes after he had changed clothes. The upper layers of skin have peeled off.
The radiological accident in Yanango (PDF - 3.30 MB) (IAEA, 2000)