In this case, the history given is not absolutely typical of Schüller-Christian disease. There was a history of frequency of urination, somewhat periodic in character, with at times passage of large amounts of urine. There had been no excessive thirst, but the patient stated that he drank quite a bit of water. There had been no pain nor tenderness. The patient did, however, complain of headache, and gave a history of injury to the head. There was present no exophthalmos, but the right eye appeared slightly prominent. The lesions were confined to the head. The blood cholesterol was very considerably raised (235.3 milligrams), while the blood calcium was normal. In view of these findings, the condition is believed to be one of xanthomatosis (Schüller-Christian disease or lipoid histiocytosis).