Urachus is the remnant of the embryologic allantois and the fetal bladder, extending form the bladder roof to the umbilicus. It degenerates in the prenatal period into a tissue band known as the median umbilical ligament. Incomplete degeneration may lead to urachal diverticle development. It is difficult to diagnose unless it is considered in differential diagnosis and imaging modalities are em...

We report a case of a 75-year-old man submitted to a rectosigmoidectomy and partial cystectomy because of a sigmoid cancer and colovesical fistula. Seven months later and after four cycles of adjuvant chemotherapy, a lesion was detected in the kidney. Histology revealed tubular adenocarcinoma, which meant sigmoid cancer metastasis. Kidney metastases are very rare in colorectal cancer (CRC), but...

The pathologist plays an important role in management of bladder cancer, as a member of the multidisciplinary team of urologists, radiation therapists, and medical oncologists. The therapeutic goal is saving the bladder function as long as possible. The pathologic determinants utilized for selection of therapeutic modalities are described in 172 consecutively treated patients with transitional ...