1. Pulmonary inverted schneiderian papilloma
Stefano Margaritora, MD, Alfredo Cesario, MD, Domenico Galetta, MD, Venanzio Porziella, MD, Antonino Mulé, MD, Pierluigi Granone, MD 
The Annals of Thoracic Surgery 
Volume 77, Issue 5, Pages (May 2004)
DOI: /S (03)

2. Fig 1
Low (A) and high (B) power microphotographs of resected pulmonary lesions showing neoplastic epithelial cells surrounded by alveolar pulmonary epithelium with morphologic characteristics similar to those shown in Figure 2 (hematoxylin & eosin: (A): ×50; (B): ×250). (B, inset) A rare typical mitotic figure is present (hematoxylin & eosin, ×400).
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

3. Fig 2
Low power microphotograph of a recurrence of the nasal inverted papilloma (hematoxylin & eosin, ×50). Inverting cords of neoplastic “intermediate” epithelial cells with isolated microcystic structure endophytically project into the underlying fibrous stroma where chronic inflammatory cells are also appreciable. The overlying nasal epithelium has been completely replaced by metaplastic squamous cells.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )