• Chan Won Park, In Seok Lim, Sin Weon Yun, Soo Ahn Chae, Na Mi Lee, and Dae Yong Yi.
• Department of Pediatrics, Chung-Ang University Hospital, Korea.
• J Pak Med Assoc. 2016 Oct 1; 66 (10): 1339-1342.

AbstractWe report a case of Henoch-Schonlein purpura (HSP) presenting without typical skin lesion; atypical symptoms initially appeared following influenza infection. A 4-year-old girl with influenza presented with epigastric pain and vomiting. On physical examination, there was epigastric tenderness, but no other signs, such as skin rash. On the second day, she vomited blood 10 times. Ultrasonography indicated focal bowel wall thickening in the right upper quadrant. Esophagogastroduodenoscopy showed oedematous and purpuric mucosa in the gastric pylorus and duodenum. Steroid therapy was initiated, and symptoms improved, but microscopic haematuria persisted. Even in the absence of typical purpura, if any gastrointestinal symptoms are observed and HSP is suspected, aggressive diagnostic tools must be considered, including ultrasonography or endoscopy. With only a few reported cases of HSP associated with influenza infection, this is the first reported case with gastrointestinal involvement and renal impairment, but without typical skin lesions.

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