Abstract
Lipoid pneumonia is an uncommon non-infectious condition that results from the accumulation of lipids of animal, vegetable or mineral origin, in the lungs. Most often it is a result of aspiration from altered swallowing or cough mechanism. Children with palatal abnormalities debilitated older adults or adults with neurological or gastrointestinal disorders are commonly affected. Lipoid pneumonia should be considered as a differential for a lung cavity lesion, especially in patients at risk for aspiration. Such lesions can persist on long-term follow up. However, infection and malignancy should be ruled out.
Highlights
Lipoid pneumonia is an uncommon non-infectious condition that results from the accumulation of lipids of animal, vegetable or mineral origin, in the lungs [1,2]
Lipoid pneumonia should be considered as a differential for a lung cavity lesion, especially in patients at risk for aspiration
Endogenous form of lipoid pneumonia is a result of accumulation of endogenous lipids derived from the lung parenchyma [5,6]
Summary
Lipoid pneumonia is an uncommon non-infectious condition that results from the accumulation of lipids of animal, vegetable or mineral origin, in the lungs [1,2]. Figure 2: 2011 RUL Posterior segment transbronchial biopsies showing alveolated parenchyma with large collections of vacuolated histiocytes and multinucleated giant cells associated with chronic inflammation. Up to 1.1 centimeters in right para tracheal and sub-carinal station were noted He underwent bronchoscopy with RUL posterior segment transbronchial biopsies. Were performed and pathology once again showed large collections of vacuolated histiocytes and multinucleated giant cells associated with chronic inflammation and some fibrosis consistent with exogenous lipoid pneumonia (Figure 4). This was again felt to be secondary to his chronic aspiration given his mental retardation. Patient is currently being monitored clinically along with radiographic surveillance
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