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Parapsoriasis, Plaque Type. Presented by Craig Williamson, MD.
The patient is a 74-year-old male, married, white accountant.
This patient has had a generalized eruption, with minimal itching for 1½ years. This began as a single, red, scaling patch on the right side of the abdomen. New similar patches appeared until the trunk and all extremities were involved.
Hyperthyroidism (substernal thyroid enlargement) discovered five years ago. At first this was controlled with methimazole (Tapazol) but in February of 1964 a course of iodinated I-131 serum albumin was administered. There has been no previous skin disease.
There is a generalized eruption of mildly erythematous, dry, scaling nonindurated patches involving the trunk and extremities. These vary from 3 to 4 cm to 15 or 20 cm in diameter. Some appear atrophic. Approximately one fourth of the skin surface is involved.
THE LOS ANGELES DERMATOLOGICAL SOCIETY. Arch Dermatol. 1966;94(2):233–236. doi:10.1001/archderm.1966.01600260125021