Purpura-free small intestinal IgA vasculitis complicated by cytomegalovirus reactivation

Author:

Matsumura Mariko,Komeda Yoriaki,Watanabe Tomohiro,Kudo Masatoshi

Abstract

IgA vasculitis (Henoch-Schönlein purpura) affects various organs, including the skin, gastrointestinal (GI) tract, joints and kidneys. Its clinical course typically consists of two phases: initial appearance of purpura and delayed onset of arthralgia, GI symptoms and haematuria. We report the case of an adult patient with IgA vasculitis of the small bowel, without skin involvement, complicated by cytomegalovirus (CMV) enteritis following prednisolone administration. Single-balloon enteroscopy revealed mucosal oedema, redness, erosions and transverse ulcers of the duodenum and jejunum. Jejunal biopsy specimens showed IgA deposition in the capillary walls. CMV reactivation was confirmed by PCR and immunostaining using jejunal biopsy specimens. This case report strongly suggests that adult patients with IgA vasculitis can present with isolated GI involvement, without characteristic skin purpura. Furthermore, CMV reactivation needs to be considered in patients with IgA vasculitis showing poor response to glucocorticoids.

Publisher

BMJ

Subject

General Medicine

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