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June 1946


Author Affiliations

President; Secretary Dec. 9, 1944

Arch Derm Syphilol. 1946;53(6):658-663. doi:10.1001/archderm.1946.01510350098019

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A Case for Diagnosis (Pityriasis-Rosea-like, Lichen-Planus-like Eruption Following Antisyphilitic Therapy?) Presented by Dr. Harold M. Johnson.

A 34 year old Filipino had been treated for syphilis since May 31, 1944. He received a course of bismuth and a course of arsenic (oxophenarsine hydrochloride), and when bismuth was started again, on Sept. 20, 1944, a pruritic scaly exanthem with discrete scaly macules and papules following the lines of cleavage developed on his chest, arms and legs. The lesions are definitely pityriasis-rosealike, with the dusky purplish hue of lichen planus. The patient complained of severe itching in periodic seizures. Antisyphilitic therapy was discontinued, and a plantation physician gave the patient sodium thiosulfate and calcium gluconate intravenously and antipruritic lotions.

He was seen on Dec. 4, 1944, and a specimen for biopsy was taken from a typical scaly purplish papule located on his abdomen. The blood and urine were normal.

Biopsy showed

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