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Diffuse alveolar septal amyloidosis in generalised amyloidosis
Acta Pathologica Japonica
|July 1, 1980
Summary
This case report details generalized amyloidosis affecting the alveolar septa, leading to pneumonia-like symptoms and death. The study discusses amyloid deposition in the lungs and its impact on gas diffusion.
Area of Science:
- Pulmonary Medicine
- Pathology
- Gastroenterology
Background:
- Generalized amyloidosis is a rare systemic disease characterized by extracellular deposition of misfolded proteins.
- Pulmonary involvement in amyloidosis can manifest in various ways, often leading to respiratory compromise.
Observation:
- A 67-year-old female presented with anorexia and diarrhea, later developing pneumonia-like symptoms.
- Autopsy revealed diffuse amyloid deposition in the alveolar septa of both lungs, with minor involvement in other organs.
Findings:
- Severe alveolar septal amyloidosis was the predominant finding, with amyloid material beneath the basement membrane.
- Amyloid deposits were also noted in the gastrointestinal tract, thyroid, kidneys, myocardium, adipose tissue, and blood vessels.
Implications:
- This case highlights the potential for severe pulmonary involvement in generalized amyloidosis.
- Understanding the pattern of amyloid deposition is crucial for assessing its impact on organ function, particularly gas diffusion in the lungs.