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Colorectal Schistosomiasis Infection After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Recurrent Metastatic Colon Adenocarcinoma: A Case Report

Sulaiman Alshammari, Ashwaq Almajed, Retaj Alkhawaja, Turki Alshammari, Riyadh Hakami, Sufia Husain, Thamer Bin Traiki

(Department of Surgery, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia)

Am J Case Rep 2021; 22:e930439

DOI: 10.12659/AJCR.930439

BACKGROUND: Colorectal cancer is one of the most common cancers in men and women worldwide. There are several studies showing an association between chronic schistosomiasis infection and colorectal cancer.
CASE REPORT: A 53-year-old woman presented with recurrent metastatic colon cancer involving the peritoneum and bilateral adnexa. The patient then underwent exploratory laparotomy that involved abdominal wall deposit resection, omentectomy, redo left hemicolectomy, peritonectomy, diaphragmatic stripping, and total abdominal hysterectomy with bilateral salpingectomy-oophorectomy, as well as hyperthermic intraperitoneal chemotherapy (HIPEC). She also underwent adjuvant chemotherapy, but on her 6th cycle, the patient suffered intolerable anal pain, diarrhea, and rectal bleeding. Her colonoscopy showed extended circumferential inflammation with loses of vascular pattern and a few rectal ulcers going up to the anastomosis site. Biopsy revealed Schistosoma mansoni eggs and marked ischemic changes. She was then managed with a single dose of Praziquantel.
CONCLUSIONS: Colorectal schistosomiasis infection is a rare cause of such common presentations especially in postoperative settings in a patient with recurrent metastatic colon cancer. The use of multimodality investigations and high clinical suspicion were needed for the diagnosis and to exclude other common etiologies.

Keywords: Schistosomiasis, Schistosomiasis mansoni

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