Malignant Warthin's tumour: a case study.

@article{Therkildsen1992MalignantWT,
  title={Malignant Warthin's tumour: a case study.},
  author={Marianne Hamilton Therkildsen and Niels Christensen and Lisbeth Juhler Andersen and Stein Larsen and M. Katholm},
  journal={Histopathology},
  year={1992},
  volume={21 2},
  pages={167-71}
}
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.