Pulmonary alveolar microlithiasis

Case contributed by Dr Ahmed Abdrabou


Cough and expectoration with abnormal chest radiograph

Patient Data

Age: 33 years old
Gender: Male

Sand like extensive calcification of pulmonary parenchyma with relative sparing of the subpleural area forming black pleura sign.

Annotated image

Case Discussion

Chest radiograph and CT findings are conclusive of pulmonary alveolar microlithiasis which is genetic mutation that results in deposition of calcium within the alveoli.

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Case information

rID: 51115
Published: 4th Feb 2017
Last edited: 14th Aug 2019
System: Chest
Inclusion in quiz mode: Included

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