Micrograph showing abundant subepithelial histiocytes in a case of<unk> . H&E stain. A positive culture in MacConkey agar is diagnostic, but cultures are only positive in 50–60% of cases. Diagnostic characteristics are most commonly found in the granulomatous stage and are described as being plasma cells with birefringent inclusions, Russell bodies, pseudoepitheliomatous hyperplasia, and groups of large vacuolated histiocytes containing Klebsiella<unk> tis (Mikulicz cells).
Rhinoscleroma
Chorangioma
Chorioangioma
Sinusoidal hemangioma
Spiradenoma
Apudoma
Aquarium granuloma
Spider angioma