Schaumann bodies

Schaumann bodies are residual bodies of hetero-phagic mycobacterial derivation (Ang and Mos-covic 1996). They immunostained intensely for the... 

Scattered throughout the interstitium are poorly formed granulomas consisting of small clusters of epithelioid histiocytes and occasional giant cells. The granulomas tend to be near airways or arteries. If the granulomas are well formed or contain necrosis other diseases should be considered such as sarcoidosis or infection. The giant cells may contain small stellate-shaped asteroid bodies or calcified Schaumann bodies. 

Figure 11 (See color insert.) Histopathology of pulmonary sarcoidosis. (A, B) Granulomas with Schaumann body (A) and asteroid body (B), characteristic but not specific for sarcoidosis H E stain, x200) (C, D) Granulomatous arteritis (C) and venulitis (D) commonly seen in the lung with sarcoidosis (C, trichrome/elastic stain x 100 D, H E stain, X100).

---