Bronchocentric granulomatosis in a patient with ABPA

Low magnification photomicrograph (original magnification 100x) showing a necrotizing granuloma centered on an airway. A centrally necrotic lumen (upper right) is surrounded by epithelioid and palisaded histiocytes to form a necrotizing granuloma adjacent to a pulmonary artery (lower left), the only clue that the lesion is centered on a bronchiole.