ULTRASTRUCTURAL FEATURES
Numerous mitochondria varying in shape (stain with PTAH)
Desmosomes
Glandular lumen, microvilli and tight junctions (focal)
Round nuclei
Dispersed chromatin
Prominent nucleoli
| IMMUNOHISTOCHEMICAL FEATURES
Oncocytoma
Oncocytic metaplasia in canalicular adenoma
Diffuse oncocytosis in old ages
Nodular oncocytic hyperplasia
Warthin’s tumor
Oncocytic cystadenoma
|
Slide 66
