Vesicocolic fistula due to “collision” between adenocarcinoma of the colon and transitional cell carcinoma of the urinary bladder

Abstract

A patient with sigmoidocystic fistula d u e t o "collision" between mucoid adenocarcinoma of the colon a n d transitional cell carcinoma of the urinary bladder is presented. A wide resection of the colonic tumor, along with the involved bladder segment, a n d a decompressive colostomy with bladder drainage by catheter, were performed. The clinical symptoms, diagnostic procedures, operative treatment, and prognosis are discussed. Although fistular formation is a n indication of advanced carcinoma, wide resection of the tumor and the associated fistular along with the node-bearing area will result in a reasonable percentage of 5-year survivals.Cancer 38:335-340, 1976. ESICOCOLIC FISTULA SECONDARY TO COLONICV cancer is a relatively rare complication.Aldrete et a1.l reported 42 fistulas in approximately 13,000 operations for cancer of the colon (0.32%). Lockhart-Mummery2 reported the finding of cancer of the colon adherent to the urinary bladder i n 157 out of 3780 cases (4%) of carcinomas of the left colon, excluding the rectum. In 23 of these, a fistula had developed into the lumen of the bladder, an incidence of 0.6%. Most authors agree that the occurrence of vesicocolic fistulas of neoplastic origin is second only to that of fistulas caused by an inflammatory process, mainly diverticulitis of the c0lon.~-4 In spite oE its general acceptance as an uncommon complication, Couris et al,3 reviewing the literature, found that 55% of the intestinovesical fistulae were of neoplastic origin, 52% were on the basis of an inflammatory lesion, and 13% were traumatic. Of the 133 intestinovesical fistulae due to neoplasms, 72 were secondary to carcinoma of the sigmoid colon (54%), 29 followed car-

Concurrent diagnosis of urothelial carcinoma and squamous cell carcinoma of the bladder in a patient with a vesicorectal fistula from invasive rectal cancer

“…Nonetheless, concomitant transitional cell carcinoma of the bladder occurring synchronously with a locally advanced colorectal malignancy causing a vesicoenteric fistula is extremely rare. Only two previous cases have been reported in the literature 3,4 . To our knowlegde, this is the first reported case of concomitant occurrence of three distinct pelvic malignancies.…”

“…Only two previous cases have been reported in the literature. 3,4 To our knowlegde, this is the first reported case of concomitant occurrence of three distinct pelvic malignancies.…”

Collision tumour of sigmoid colon – a rare presentation

“…3 Despite the high incidence of hepatitis A virus (HAV) infection in pediatric population, HAV induced VAHS has rarely been described in literature. 2 We report a case of 15-year-old male child with…”

“…Collision tumours comprising of two independent tumour phenotypes can also rarely occur in the colon. They can be a combination of adenocarcinoma with carcinoid tumour, 1 transitional cell carcinoma, 2 or lymphomas. [3][4][5][6] Although the formation of collision tumours is not well understood, theories explaining their occurrence primary malignant lymphoma and adenocarcinoma.…”

A case of metachronous colon cancer developing after a primary granulosa cell tumor of ovary

“…Colonic and appendiceal adenocarcinoma developing after granulosa cell tumour is one of the rarest occurrences. Metachronous tumor have been reported in literature from time to time, as adenocarcinoma of colon with carcinoid tumour [4], transitional cell tumor of bladder and adenocarcinoma of colon [5], adenocarcinoma of colon and yolk sac tumor of ovary [6]. The etiologic factors implicated for the development of such metachronous tumour are the primary tumour itself, genetic manipulation, genetic mutation, chemotherapy, radiotherapy etc.…”