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Syphilitic Synovial Cyst. Presented by Dr. Saul Robinson for Dr. Kendal Frost.
This patient has had a lesion on the right middle finger for about two months. It is a dark red, soft nodule not tender to the touch. A cutaneous test for syphilis has repeatedly been strongly positive. The nodule and erythema subsided with antisyphilitic therapy, but the lesion enlarged again until it reached its present size. There was a local Herxheimer reaction after the first injection of neoarsphenamine. The Wassermann reaction of the blood has been repeatedly 1 plus or doubtful. The Wassermann reaction of the spinal fluid has been negative.
Dr. Irving R. Bancroft: I have seen a number of similar cysts in connection with Heberden's nodes.Dr. Samuel Ayres, Jr.: The lesion appears to be a hemangioma rather than a synovial cyst. It is very soft, superficial and purplish, and on squeezing it one can
Wilhelm LFX, Ayres S. LOS ANGELES DERMATOLOGICAL SOCIETY. Arch Derm Syphilol. 1934;29(5):730–735. doi:https://doi.org/10.1001/archderm.1934.01460110088016
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