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May 1940


Arch Derm Syphilol. 1940;41(5):887-888. doi:10.1001/archderm.1940.01490110073009

Wiener1 recently reported a case in which a wood tick on the chest of an elderly man simulated a number of partly pedunculated pigmented senile keratoses and fibromas that happened to be located on his chest. He also called attention to the following statement by Ormsby:2

The female occasionally attacks the human skin by thrusting into it her beak... After suction of the blood from the wound, the body of the tick swells to the size of that of a pea or small bean, and may remain for several days in the same position. At such times the parasite may be mistaken for a small, pedunculated tumor.

I wish to report a case somewhat similar to that reported by Wiener, which I observed in private practice several years ago. A wood tick was found to be living an evidently contented and undisturbed life on the scalp of a