Fig. 4From: Pleural sarcoidosis diagnosed on the basis of an increased CD4/CD8 lymphocyte ratio in pleural effusion fluid: a case reportHistological analysis. All pictures are obtained at 20× magnification. a Hematoxylin and eosin staining of a subcutaneous nodule specimen. b Hematoxylin and eosin staining of a right mediastinal lymph node specimen. c Hematoxylin and eosin staining of an endobronchial nodule specimen. d Hematoxylin and eosin staining of a transbronchial lung biopsy specimenBack to article page