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Massive hepatic infarction associated with polyarteritis nodosa.

J Haratake¹, A Horie, A Furuta

¹Department of Pathology and Oncology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.

Acta Pathologica Japonica

|January 1, 1988

Summary

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A rare case of massive hepatic infarction occurred in a patient with polyarteritis nodosa. This liver condition was linked to portal vein thrombosis and hepatic artery occlusion, despite corticosteroid treatment.

Area of Science:

Hepatology
Vascular Pathology
Immunology

Background:

Polyarteritis nodosa (PAN) is a systemic vasculitis that can affect various organs.
Corticosteroids are commonly used to manage PAN, but opportunistic infections can arise.
Hepatic involvement in PAN, while possible, rarely leads to massive infarction.

Observation:

A 44-year-old male with a two-year history of PAN presented with complications.
The patient was on corticosteroid therapy for PAN, which was reportedly well-controlled.
Death occurred due to an opportunistic fungal infection.

Findings:

Autopsy revealed a massive hepatic infarct and a fresh thrombus in the right portal vein trunk.
Hepatic arterial branches showed occlusion with fibrosis and elastic fiber dissociation, characteristic of PAN.

Related Experiment Videos

The findings suggest a complex interplay between vasculitis, thrombosis, and infarction in the liver.

Implications:

Massive hepatic infarction is an uncommon but severe complication of polyarteritis nodosa.
This case highlights the potential for vascular complications in the liver due to PAN.
Understanding the pathogenesis of hepatic infarcts in vasculitis is crucial for patient management.