Middle colic artery rupture in a patient with ANCA associated vasculitis: a case report

Area of Science:

• Rheumatology
• Immunology
• Vascular Medicine

Background:

• Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitides are systemic inflammatory diseases affecting small to medium-sized blood vessels.
• Recent advancements in classification and diagnostics aid in identifying ANCA-associated vasculitis.
• These conditions can present with diverse symptoms, impacting multiple organ systems and sometimes overlapping in presentation.

Observation:

• Gastrointestinal manifestations of ANCA vasculitis are rare but can be severe.
• This report details a patient with ANCA vasculitis experiencing spontaneous middle colic artery rupture and superior mesenteric aneurysms.
• Such vascular complications are uncommon but serious sequelae of the disease.

Findings:

• The case underscores the potential for severe, atypical gastrointestinal vascular events in ANCA vasculitis.
• Review of literature confirms gastrointestinal complications as a rare but recognized feature, historically linked to polyarteritis nodosa and Wegener's granulomatosis.
• The patient's presentation highlights the heterogeneity of ANCA vasculitis manifestations.

Implications:

• Accurate diagnosis and classification of ANCA vasculitis are crucial for timely and appropriate management.
• Understanding the spectrum of potential complications, including rare GI events, is vital for patient care.
• Current treatment strategies involve immunosuppression and supportive therapies, but management of severe vascular complications requires careful consideration.