In very rare cases, an itchy scalp can be a sign of lymphoma, Dr. Haley says, specifically, a form called “Cutaneous T-Cell Lymphoma.” The itching with this form of lymphoma tends to be severe ...

Like lymphoma, it is a much less likely cause of ... People will most commonly get them on the scalp, on the back of the head, or on the cheek. The most common type of melanoma people get on ...