Figure 4From: Bronchioloalveolar carcinoma as a second malignancy in a pediatric osteosarcoma survivor: case reportHistopathological findings. (A) Microscopic examination of the right S1 tumor confirmed a sarcoma composed of fascicular proliferation of spindle-shaped cells. (B, C) In the right S9 lesion, atypical cuboidal cells grew densely along alveolar walls, forming a bronchioloalveolar pattern.Back to article page