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September 1977

`Stockbroker's Knee'

Arch Dermatol. 1977;113(9):1300. doi:10.1001/archderm.1977.01640090148043

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To the Editor.—  A stockbroker appeared at my office with a chief complaint of hypesthesia in a palmsized area over the left suprapatellar area of several months' duration. Another physician had ordered roentgenograms of the lumbar spine, which were normal. Physical examination showed hypesthesia and obvious hair loss over the involved area.Careful questioning revealed that the telephone in his office was so placed that reaching for it necessitated turning his body more than 90° to the right. This motion was always accompanied by scraping the anterior surface of his left lower thigh (the affected area) against the kneehole of the desk.In a follow-up visit, he reported that in discussing his now famous knee with his office colleagues, another stockbroker with the same telephonedesk configuration came forward with an almost identical complaint of hypesthesia in the left suprapatellar area.Perhaps an appropriate diagnosis in these two cases would

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