Diagnosis and management of sigmoid leiomyosarcoma presenting with intussusception: a case report

Sigmoid leiomyosarcoma is a rare type of cancer that originates from smooth muscles of the sigmoid colon. This case report details a 50-year-old female found to have this condition, presenting to the emergency department with intussusception. A CT scan revealed two intraluminal masses, with the largest 10 cm from the anal verge. A colonoscopy and biopsy revealed a large obstructing mass with atypical spindle-shaped cells. This case shows a rare type of cancer presenting in a rare complication and highlights the approach done in the multi-disciplinary tumor board meeting involving gastroenterologists, radiologists, surgeons, and oncologists, leading to prompt diagnosis and surgical resection.