Cholecystocolonic fistula (CCF) and hemorrhagic cholecystitis are rare complications of gallstones that have a wide range of non-specific symptoms and clinical severity. We present a case of a 74-year-old woman on warfarin who presented to the emergency department with a 10-day history of abdominal pain, vomiting, and watery diarrhea. Her abdomen was distended with generalized tenderness and palpable mass in the right lower quadrant. Laboratory tests revealed leukocytosis and an elevated international normalized ratio (INR). After admission and imaging, exploratory laparotomy showed hemorrhagic cholecystitis with CCF in the cecum. There was no pus or stool contamination. A cholecystectomy followed by right hemicolectomy with primary ileocolic anastomosis was performed. The postoperative course was uneventful, and the patient was discharged in stable condition.The presence of hemorrhagic cholecystitis in conjunction with CCF could lead to significant consequences such as hemorrhagic and septic shock in older patients with comorbidities. It is crucial to identify and intervene early before clinical deterioration.

Patient: Female, 53-year-old Final Diagnosis: Schistosomiasis colitis Symptoms: Intolerable anal pain • rectal bleeding Medication: — Clinical Procedure: — Specialty: Oncology • Surgery Objective: Rare co-existance of disease or pathology 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 6 th 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.