Benign cephalic histiocytosis is a rare skin disorder that is characterized by the presence of multiple, small, yellowish-brown bumps on the skin. These bumps are usually found on the face, scalp, and neck, but can also occur on other parts of the body. The bumps are made up of histiocytes, which are a type of white blood cell. The condition is usually benign and does not cause any symptoms, but it can sometimes be associated with itching or discomfort. Treatment is usually not necessary, but in some cases, topical corticosteroids may be prescribed to reduce inflammation.