Adenocarcinomas are uncommon tumors of the urinary bladder, accounting for 0.5% to 2.2% of all bladder malignancies over world.
Separating urachal tumors from non-urachal tumors are important in their prognosis. Authors report thirty-nine cases analyzed according to their clinical aspects at presentation and according to their gross and histopathologic features, such as
location, size, shape, stage, differentiation, cell types on microscopic examination. Twenty-one tumors were primary ;8 tumors were non-urachal, 11 tumors were urachal and 2 tumors are unknown. Eighteen tumors were secondary; 7 tumors originated
from
prostate and others form colon, stomach, rectum and ovary. Urachal tumors developed in younger age, were larger and poorly differentiated than non-urachal tumors. In higtopathologic types of primary adenocarcinoma in the urinary bladder,
adenocarcinoma,
NOS are most common. In urachal adenocarcinomas, enteric types are common but in non-urachal tumors, adenocarcinoma, NOS are common. Arround tumor, cystitis cystica, cystitis glandularis, necrosis and calcification are also seen. But around
urachal
tumors, cystitis cystica and cystitis glandularis are not observed.
Sometimes, routine clinical and pathologic study cannot differentiate the histogenesis and the classification of adenocarcinoma in the urinary bladder. Further studies are needed.
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