Past Issue

Volume 16, Number 3, Autumn 2014, Serial Number: 63, Pages: 375-376

Cytomorphological Effects of Mitomycin C on Urothelial Cells: Eosinophils May Be Clue to The Drug-Induced Changes

Gulcin Guler Simsek, M.D., *, Erdem Vargol, M.D., Hulya Simsek, M.D.,
Kecioren Training and Research Hospital, Department of Pathology Ankara, Turkey
*Corresponding Address: Kecioren Training and Research Hospital Department of Pathology Ankara Turkey


Cytomorphological changes of mitomycin C on urothelial cells may be misinterpreted as a neoplastic process. A 60-year old male patient who was given an eight-week course of intravesical mitomycin C due to non-invasive low grade transitional cell carcinoma. During his follow-up care, the findings of a urine cytology exam were as follows: nuclear enlargement of cells, wrinkled nuclear membranes, little hyperchromasia, pleomorphism, abnormal nuclear morphology and disordered orientation of the urothelium. Furthermore, there were eosinophils nearby the atypical cells. This report aimed at reminding the cytomorphologic changes of mitomycin C may be misinterpreted as carcinoma, so the presence of eosinophils is required to predict the drug-induced changes.