'Tumour of the pons Varolii' William Say

A section has been made through the pons Varolii; the left lateral ventricle having been drawn open to display its extent. The image is annotated: a. The anterior lobes of the cerebrum b. The posterior lobes of the cerebrum c. The middle lobe of the right hemisphere d. Part of the cerebellum e. The section of the cerebellum f. The commencement of the spinal cord g. The section of the pons Varolii showing a general enlargement of its substance by a gelatinous infiltration amongst its fibres h. The olfactory nerves i. The optic nerves j. The infundibulum distended with serum k. The choroid plexus l. The superior part of the lateral ventricle m. The posterior cornu of the lateral ventricle n. The anterior cornu of the lateral ventricle o. The brain thrown back, which if replaced would correspond with l p. The corpus striatum q. The optic thalamus Fig.2 û small auxiliary image. A scrofulous tumour. Plate 3 from Bright's Medical Reports: Diseases of the brain and Nervous System part 1 by Richard Bright (London, Longman, Rees... 1831). Inscribed: 'Plate 3. Drawn by F. R. Say. London Published July 1st. 1829. by Longman, Rees, Orme & Brown. Engraved by W. Say'

Original: engraving. 1831