Focal calcification at theorigin of the middle lobe bronchus either a lymph node or a broncholith with downstream atelectasis and and bronchiextasis Also noted is cystic bronchiectasis
Pther Granulomatous Calcifications
43F-middle-lobe-syndrome-bronchiectasis-calcification-middle-lobe-syndrome-005.jpg
Links and References
Umair Shaikh; Daniel Heller. Right Middle Lobe Syndrome