Fig. 3
From: Malignant giant solitary fibrous tumour of the mediastinum; masquerading Triton tumour
Tumour cells showed diffuse immunopositivity for CD34, which had also highlighted staghorn vasculatures (A DAB; 200x), Weak staining for BCL-2. (B DAB; 200x). Besides focal immunostaining for desmin (C DAB; 200x) was noted, however, SMA was negative ((D DAB; 200x). Occasional cells were also positive for S-100 protein. (Arrow) (E DAB; 400 x) Strong and diffuse nuclear staining for STAT6 confirmed diagnosis of SFT(F DAB; 200X)