Though anatomically similar, these cases presented dissimilar and variable clinical pictures, with predominance of distant symptoms produced by secondary hydrocephalus. A correct clinical diagnosis was definitely made only in the first case, and it was made by means of pneumoventriculography. In this case, inflammatory disease of the frontal region had at first been suspected. In the second case, serous meningitis following a throat infection was at first suspected. Later, a stage of decerebrate rigidity developed and lasted for many months. The third case was considered one of encephalitis of the brain stem, as the general symptoms of brain tumor were lacking. In the fourth case, a lesion of the pons was obvious, but it was a question whether the lesion was neoplastic or inflammatory.
REPORT OF CASES
Case 1.—History.
—For the early history we are indebted to the patient's family physician, Dr. A. N. Wiseley of Lima, Ohio.A married