Top 25 Pearls of Pulmonary Pathology Series. Max and Kevin show a case with a broad spectrum of pathologic findings including cellular interstitial pneumonia, organizing pneumonia, granulomas, acute lung injury, and fibrosis. Rare scatter fragments of aspirated foreign material are identified confirming a diagnosis of aspiration bronchiolitis with OP Topic 6 Pear 5: Aspiration induced injury may be more common than you think. Visit www.6patterns.org for more. Twitter and Instagram @6Patterns. Videos are for education and entertainment only and should not be used as medical advice.