PT  - JOURNAL ARTICLE
AU  - Mommersteeg, Michiel C
AU  - Kies, Dennis A
AU  - van der Laan, Jaap
AU  - Wonders, Janneke
TI  - Linitis plastica of the rectum secondary to prostate carcinoma
AID  - 10.1136/bcr-2021-248462
DP  - 2022 Dec 01
TA  - BMJ Case Reports
PG  - e248462
VI  - 15
IP  - 12
4099  - http://casereports.bmj.com/content/15/12/e248462.short
4100  - http://casereports.bmj.com/content/15/12/e248462.full
SO  - BMJ Case Reports2022 Dec 01; 15
AB  - Linitis plastica is an intramural carcinoma that may occur in any hollow organ. Rectal linitis plastica (RLP) is a morphological variant cancer that may occur as a primary form of cancer or secondary as a metastasis of a primary malignancy. We report the case of a man in his 70s with RLP secondary to prostate carcinoma who was initially suspected to have an obstructing rectal adenocarcinoma. During colonoscopy a segment of cobblestone mucosa was seen in the distal rectum. Subsequent imaging showed enhancement of all wall-layers of the rectum and diffuse retroperitoneal fat infiltration with traction on both ureters. A prostate-specific membrane antigen scan confirmed RLP secondary to a prostate carcinoma mimicking the clinical and radiological signs of an obstructing rectal carcinoma with retroperitoneal fibrosis.This case emphasises the possible pitfalls in the diagnosis of RLP and the importance of advanced imaging techniques, such as MRI, as well as appropriate histological samples. The patient underwent androgen deprivation therapy to which RLP responded well and neither systemic chemotherapy or surgery was necessary.