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Tumefactive liver infiltration in amyloidosis
Annals of Clinical Research
|February 1, 1982
Summary
This case study highlights tumefactive liver infiltration in primary amyloidosis, initially mimicking a liver tumor. Diagnosis was confirmed via biopsy showing amyloid deposition, not malignancy.
Area of Science:
- Hepatology
- Nephrology
- Pathology
Background:
- Primary amyloidosis can present with atypical organ infiltration.
- Tumefactive liver lesions are rare manifestations of systemic diseases.
Observation:
- A patient presented with a large, focal liver mass on imaging, suspected to be a tumor.
- Laparotomy revealed an enlarged, firm, and pale liver, but no malignancy.
- Liver biopsy confirmed extensive amyloid deposition within the liver parenchyma.
Findings:
- Amyloid infiltration constituted approximately 30% of the liver mass, primarily in the perisinusoidal space.
- Kidney biopsy confirmed amyloidosis, while rectal biopsy was negative.
- The patient remained stable 1.5 years later, suggesting a non-malignant process.
Implications:
- This case underscores the importance of considering amyloidosis in the differential diagnosis of liver masses.
- Liver biopsy is crucial for definitive diagnosis in suspected tumefactive liver amyloidosis.
- Ultrasound (echo studies) can be useful in monitoring liver changes, showing generalized enlargement rather than focal lesions over time.