: a clinicopathologic analysis of 24 cases with outcome correlation.
Witjes, "The clinical epidemiology of urachal carcinoma
: results of a large, population based study," The Journal of Urology, vol.
Its location favored a urachal carcinoma
as the main diagnosis.
is a rare malignant tumor, accounting for fewer than 1% of all primary bladder cancers .
We report a case of 46-year-old woman with an urachal carcinoma
and do a brief literature review about this extremely rare entity.
The location and histological type of the mass suggested that it arose from the urachal remnant, and it was diagnosed as urachal carcinoma
. This tumor was located in the abdominal wall at a distance from the bladder, where no malignant tissue was seen.
Characteristic imaging features, however, proved decisive in establishing the diagnosis of a urachal carcinoma
: a pathologic and clinical study of 46 cases.
Mucinous Ovarian Versus Mucinous Urachal Adenocarcinoma.--A differentiating panel includes [beta]-catenin (-), CDX-2 (- or +), CK 7 (+), and CK20 (+ or -, patchy) for mucinous ovarian carcinomas, whereas metastatic urachal carcinoma
displays the following pattern: [beta]-catenin (+), CDX-2 (+), CK7 (- or +, patchy), and CK20 (+).
Diffuse positivity for 34[beta]E12 may support a diagnosis of urachal carcinoma
, while diffuse nuclear staining for [beta]-catenin would favor a colorectal origin.
is a less common tumor that can present as a bladder mass and should be considered in the list of differential diagnoses.
Columnar cells with malignant features may arise from high-grade transitional cell carcinoma, urachal carcinoma
, or prostatic carcinoma.