Pulmonary tumor embolism histology

Histology of the lung (A, B, and C) and lymph node of lung hilum (D).
(A) Cross section of bronchus showing a number of carcinoma emboli in lymphatic vessels on its wall (some indicated by arrows).
(B) Lung on honeycomb tissue area displaying multiple neoplastic emboli in lymph vessels (some indicated by arrows), which is a diffusely found aspect.
(C) Lung in peripheral area showing pleural lymphatic vessels filled with tumor emboli (arrowheads).
(D) Lymph node with metastatic renal cell carcinoma represented by various carcinomatous emboli (some indicated by asterisks) [Hematoxilin & eosin; 2.5X, 10X, 5X, and 10X objectives, respectively].