Therkildsen M H, Christensen N, Andersen L J, Larsen S, Katholm M
Department of Pathology, Rigshospitalet, University of Copenhagen, Denmark.
Histopathology. 1992 Aug;21(2):167-71. doi: 10.1111/j.1365-2559.1992.tb00366.x.
Malignant transformation of a benign Warthin's tumour (adenolymphoma) is extremely rare. The light microscopic and ultrastructural features of an adenocarcinoma arising in a Warthin's tumour in the parotid gland are described. Light microscopy demonstrated a transition zone from the benign to the malignant component, and the malignant cells revealed oncocytic features by both light- and electronmicroscopy.
