摘要:Small bowel tumors are rare,accounting for <5% of gastrointestinal neoplasms,1%–2% of these being malignant.The most common histological subtype is adenocarcinoma.Small bowel adenocarcinoma (SBA) is challenging to diagnose,often presents at a late stage,and has a poor prognosis.Therefore,a high index of clinical suspicion is required to diagnose such patients,and a better outcome with early-stage detection is expected.We report here two cases of jejunal adenocarcinoma.(a) A 53-year-old male presenting with iron deficiency anemia.(b) An 81-year old-female presenting with subacute intestinal obstruction.Diagnosis of SBA remains a challenge.A physician's suspicion and awareness are crucial in such patients.The early diagnosis will affect overall survival and mortality rate.Because the incidence of SBA is very low,there is a need for further studies to evaluate the possible application of newer investigative agents and strategies to obtain a better outcome.