Small bowel adenocarcinoma in a patient with Lynch syndrome.

A 49-year-old male patient, morbidly obese, with a background of Lynch syndrome and subtotal colectomy for colon cancer in 2007, presented with severe abdominal pain in December 2015. Since then, the patient presented multiple times to the emergency department with severe diffuse abdominal pain. After extensive examination, no clear cause for the pain was identified and it was thought to be secondary to adhesions, incisional hernias and psychological. Examinations via radiological imaging were challenging due to body habitus and claustrophobia. In September 2017, the patient was admitted from outpatient clinic with severe abdominal pain, weight loss and anaemia. A CT scan of abdomen and pelvis demonstrated a dilated jejunal loop with a possible tumour. Surgery confirmed a small bowel tumour and, nearly 2 years after the initial presentation, the patient was diagnosed with adenocarcinoma of the jejenum. The patient underwent surgical excision and his symptoms subsided.