Anamnesis

A 50-year-old accountant reports a persistent headache confined to one small patch of scalp, present for four months. The area is round to slightly oval in outline, about three centimetres across, comfortably within a one to six centimetre range she has measured herself with a ruler. Its size and shape have stayed constant and unchanging since it first appeared. She is adamant the discomfort is felt exclusively over that one patch of scalp and nowhere else on the head, and the margin of the patch feels crisply, sharply demarcated against the surrounding skin, almost as if drawn with a compass. There is mild tenderness to light touch but no other change she has noticed.

Report this case — e.g. suspected re-identification risk.