Approach to diagnosis of factitious disorder with unexplained hemoptysis: A case report

Rationale: Hemoptysis or hematemesis is a common clinical symptom in adults, but is unusually to be observed in children. Hemoptysis can occur with circulatory diseases, injuries, several types of systemic diseases, or systemic factors including factitious disorder (FD), which is difficult to be diagnosed. Here, we report a case of hemoptysis caused by FD to provide a diagnostic flow chart for such kind of disease.