Fig. 2.

Sarcoidosis of a lymph node and lung tissue. A - Multiple clearly demarcated ("stamped") sarcoid granulomas in the lymph node; B - Non-caseating granulomas (caseous necrosis is absent) in the lymph node, composed of epithelioid and multinucleated giant cells of the Langhans type. C - homogenized fibrinoid mass in the decay phase (forming cavities) in the lung tissue. D - epithelioid-cellular nodule in the interalveolar septum in the lung tissue. The main mass of the inflammatory infiltrate with multiple stamped granulomas. Lymphocytic infiltration is giant-cell. Staining: HxE. Magnification:10/х0,25.