Ulcerative colitis in an adult patient mimicking Henoch-Schönlein purpura: A case report.

Rationale: Ulcerative colitis (UC) is one of the chronic inflammatory diseases of the intestinal tract. UC being misdiagnosed as Henoch-Schönlein purpura (HSP) in the elderly has seldom been reported about.

Patient Concerns: A 64-year-old man was admitted to the hospital with petechiae and palpable purpura in lower limbs and abdominal pain for about 1 month.