The case which I have thehonor to present belongs to that interesting category where complete recovery of the patient leaves the question of diagnosis forever in doubt. The patient, P. Q., a male of 16 years, was referred to me by my friend, Dr. J. H. Dunn, of Minneapolis, Sept. 18, 1897. He had been taken ill four days before, with what appeared to be an ordinary attack of indigestion accompanied by severe headache, but his symptoms had grown steadily worse and at that time pointed to the presence of a cerebral lesion.
Inquiry into the family history shows it markedly neurotic. The patient's father, always a very active business man, a continuous worker, very excitable, is occasionally subject to short, but violent outbursts of anger; otherwise he is well and has never suffered from any prolonged constitutional disease. His father died in early life, from the result of an