Fig. 3
From: A case of early diagnosis of pulmonary capillary hemangiomatosis in a worker with exposure to silica
Histologic findings of pulmonary capillary hemangiomatosis. a Low-power view showing marked congestion. b Higher-power image demonstrating thickened alveolar walls caused by proliferating capillaries (Hematoxilin and eosin staining, X400). c Proliferating capillary channels are well demonstrated by reticulin staining (Reticulin, X400). d There was no capillary proliferation within walls of the larger vessel or luminal narrowing or obliteration (Hematoxilin and eosin staining, X100). e Small arteries showing muscular hypertrophy (Hematoxilin and eosin staining, X200). f There are focal fibroses and calcifications (Hematoxilin and eosin staining, X2)