Fig. 4
From: Reticular fibre structure in the differential diagnosis of parathyroid neoplasms
Representative histological features and reticular fibre staining of parathyroid carcinoma A, metastasis of parathyroid carcinoma to the lung. Normal lung tissue (arrow) can be seen (haematoxylin eosin, 40Ć). B, no destruction of the reticular fibre structure is visible (reticular fibre staining, 40Ć). C, metastasis of parathyroid carcinoma to the lymph node (arrow) (haematoxylin eosin, 40Ć). D, a traversable field line can be seen, indicating the destruction of reticular fibre structure (reticular fibre staining, 40Ć)