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Updated: Feb 12, 2026

Laparoscopic Anterior Right Hepatectomy: A Single-Center Experience
Published on: December 4, 2023
Hepatic granulomas: a 17-year single tertiary centre experience.
Rui Gaspar1, Patricia Andrade1, Marco Silva1
1Gastroenterology Department, Centro Hospitalar São João, Faculty of Medicine of the University of Porto, Porto, Portugal.
Hepatic granulomas, often found in liver biopsies, show a shift in causes over time. Initially linked to infections like tuberculosis, recent trends point towards autoimmune liver diseases as the primary etiology.
Area of Science:
- Hepatology
- Gastroenterology
- Pathology
Background:
- Hepatic granulomas are observed in approximately 5% of liver biopsies.
- Etiologies for hepatic granulomas are diverse and vary globally.
- Understanding the causes is crucial for appropriate patient management.
Purpose of the Study:
- To evaluate the clinical significance of hepatic granulomas.
- To identify the presenting features and underlying causes of hepatic granulomas.
- To analyze trends in granuloma etiology at a tertiary referral center.
Main Methods:
- Retrospective review of adult liver biopsy data from 1998 to 2014.
- Inclusion of clinical, laboratory, and histological findings.
- Exclusion of lipogranulomas and cases not managed at the institution.
Main Results:
- 297 cases of hepatic granulomas identified; tuberculosis (35.8%) and primary biliary cholangitis (15.0%) were most common.
- A significant shift in etiology observed: infectious diseases predominated (1998-2006), while autoimmune liver diseases became more prevalent (2006-2014).
- Idiopathic granulomas accounted for 12.5% of cases.
Conclusions:
- Hepatic granulomas stem from diverse infectious and non-infectious causes.
- An epidemiological shift from infectious to autoimmune etiologies is evident.
- Accurate diagnosis through work-up is essential for targeted therapies.
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