Fig. 8

Non-necrotizing epithelioid granulomas; A, B. Section of the lung nodule shows numerous non-necrotizing epithelioid granulomas (Arrows); alveolar lung parenchyma is seen in lower half of picture “B” (H&;E, 10X). C, D. The submitted mediastinal lymph node shows similar finding of numerous non-necrotizing epithelioid granulomas. (Arrow) (H&;E, 4X, 20X). Special stains (not shown) including PAS and acid fast are negative for fungal microorganisms and mycobacteria, respectively. There is no evidence of malignancy