Case Report
Ahmad Sarfraz, Laura Aitken
Abstract
Endometriosis of the urinary bladder is uncommon and malignant transformation of bladder endometriosis is extremely rare. These malignant tumours can cause problems in differential diagnosis with bladder tumours. This report illustrates an interesting case of endometrioid adenocarcinoma of the urinary bladder, which illustrates the difficulties in diagnosis and the importance of morphology and ancillary studies in establishing the correct diagnosis.