This is an episode primary headache disorder. Symptoms typically last 4 to 72 h and may be severe. Pain is often unilateral, throbbing, worse with exertion, and accompanied by symptoms such as nausea and sensitivity to light, sound, or odors.

These are soft, movable, subcutaneous nodules of adipocytes; overlying skin appears normal. They are very common, benign, and usually solitary. Common sites are the proximal extremities, trunk, and neck. Treatment is not usually required, but bothersome ones may be removed by excision or liposuction.