A rare case of complete left lung collapse caused by allergic bronchopulmonary aspergillosis has prompted doctors in India to warn of the need to consider the allergic fungal disease as a culprit in similar presentations.

Their patient, aged in his mid-40s, presented to the interventional neuroradiology outpatient clinic two days after treatment for acute-onset numbness and weakness in his right limbs. 

An MRI performed at a nearby clinic had revealed acute infarcts in the left parietal lobe, and a parallel CT angiography showed severe stenosis of the left distal internal carotid artery.

The man had a history of diabetes, hypertension and childhood asthma that he appeared to have “outgrown” as he had not asthma medication for over 25 years.