Griffiths A P, Dekker P
Department of Histopathology, University of Leeds.
J Clin Pathol. 1991 Dec;44(12):1030-2. doi: 10.1136/jcp.44.12.1030.
A case of oncocytic metaplasia obstructing the Eustachian tube in an elderly patient is described. Histologically, it was similar to Warthin's tumour of the parotid gland. The lymphocytes were predominantly T cell, unlike those of Warthin's tumour which are predominantly B cell. It is proposed that oncocytic metaplasia represents an early stage in the evolution of Warthin's tumour.