Abstract
A 55-year-old man was admitted for treatment of unstable angina. Chest x-ray films showed a micronodular pattern, but there were no respiratory symptoms. Autopsy, carried out following sudden death, revealed pulmonary granulomas surrounding lipid crystals. The same crystals were found elsewhere: lymph nodes, spleen, liver, adrenal glands, and were composed of aliphatic hydrocarbons of vegetal origin, mainly C29H60. Investigation of the case history revealed excessive consumption of apples, to which the hydrocarbon deposition could be attributed, since C29H60 is a natural constituent of the cuticular wax in apple peel. This is a unique example of pulmonary granulomatosis due to storage of vegetal hydrocarbons of dietary origin.
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