11 May 2026
: Case report 
Subcarinal Mass: An Unusual Presentation of Granulomatosis With Polyangiitis
Unusual clinical course, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Rare disease
Giancarlo Licitra EF 1*, Alejandro Joglar EF 1, William M. Britt E 1, David Krakow E 2, Babar Junaidi EG 2DOI: 10.12659/AJCR.952160
Am J Case Rep 2026; 27:e952160
Figure 2 Fine needle aspiration of a mediastinal mass under hematoxylin and eosin staining at 100× revealing a necrotizing granuloma (indicated by the black arrow).