Examination of the Pituitary Membrane of the Throat in A avitamosis. Untersuchungen über die Histogenese der “Pusteln” der Schlundschleimhaut bei der Nährschädenerkrankung (A Avitaminose) der Hühner. L. Claussen. Deutsche Tierärtzliche Wochenschrift, Vol. 45, 1937, p. 161.

Description of the microscopic examination of the typical changes in the pituitary membrane of the throat in A avitaminosis. The festerings are caused by regressive changes of the pituitary membrane glands. The epithelium and the dividing walls of the glands are destroyed, the gland content becomes full of congealed exudate and tissue remains and this mass is extruded in a cheese-like lump. Inflamn1atory processes are not present.