A potential diagnostic pitfall for hobnail variant of papillary thyroid carcinoma.
Kristine S WongTiffany Y ChenSara E HigginsBrooke E HowittJochen H LorchErik K AlexanderEllen MarquseeNancy L ChoMatthew A NehsGerard M DohertyJustine A BarlettaPublished in: Histopathology (2020)
Classic PTC can show ischaemic/degenerative atypia that mimics the hobnail cytomorphology of true hobnail variant; however, these tumours lack aggressive histopathological features and pursue an indolent clinical course.