The treatment of patients with cancer has recently become more complex and challenging for oncologists. The paper presents a case of a 54-year-old woman treated due to small bowel adenocarcinoma, who underwent primary surgical procedure and adjuvant therapy, and who developed intra-abdominal cancer dissemination. Initially, XELOX regimen was administered, followed by multiorgan resection performed by an interdisciplinary team of gynecologists and surgeons as well as hyperthermic intraperitoneal chemotherapy (HIPEC). The therapy was complicated by impaired wound healing and an enterocutaneous fistula. Currently, the patient is under a follow-up and shows no evidence of recurrence. The wounds after the surgery and fistulas are healed, normal gastrointestinal function is preserved.