So far as I can learn, there is no recorded case of thrombosis of the rolandic vein. The apparent rarity of the condition and the interesting localizing symptoms and findings justify this report. It is interesting to note that in the case to be reported a preoperative diagnosis was made of tumor of the right parietal lobe or a thrombosis of the right rolandic vein. The latter possibility was kept in mind because of similar findings which developed after the ligation of the rolandic vein in a patient whose third ventricle was explored.1
History.
—D. C. H., a white man, aged 37, referred by Dr. J. E. Paullin, was admitted to the Piedmont Hospital on March 18, 1925. The family history was unimportant. His health had been good up to March 6, 1925, when he became conscious of a twitching sensation in the right upper eyelid. This sensation lasted