This case is reported to illustrate the difficulty encountered in the diagnosis of intracranial lesions. There was so little to suggest an abscess that the possibility of it was not considered in reaching a diagnosis.
REPORT OF CASE
The patient was a boy, aged 11 years, whose family history was free from hereditary diseases. He had been treated at the Mayo Clinic in May, 1917, for phlyctenular keratitis. There was also a history of mumps, chickenpox, and two attacks of measles. He had had no illnesses, accidents, or injuries during the last five years, and very careful questioning failed to reveal a history of a "cold," "running nose" or "sore throat" during the three months before the onset of the present illness.Jan. 22, 1924, the patient complained of bilateral, frontal headache, to which he had not previously been subject. At first the headaches occurred only on arising in the