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Fig. 2 | Diagnostic Pathology

Fig. 2

From: Rapid recurrence and bilateral lungs, multiple bone metastasis of malignant solitary fibrous tumor of the right occipital lobe: report of a case and review

Fig. 2

Photomicrographs of the tumor of left-side back of the neck and the third lumbar vertebra. (a) The patternless architecture with intervening irregular hyalinzed collagen bundles (H&E, ×100). (b) Hypercellularity or hypocellularity and perivascular hyalinization can be seen (H&E, ×100). (c) Coagulative necrosis and hemangiopericytoma-like pattern were shown (H&E, ×100). (d) Cellular atypia and atypical mitosis were shown (H&E, ×400). (e) Tumor cells were diffusely positive for CD99 (immunostain, ×200). (f) Tumor cells were focal positive for CD34 (immunostain, ×400). (g) Tumor cells were focal positive for BCL-2 (immunostain, ×400). (h) Most tumor cells showed Ki-67 labeling index of 40 % (immunostain, ×200)

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Diagnostic Pathology

ISSN: 1746-1596

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