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Figure 2 | World Journal of Surgical Oncology

Figure 2

From: Pulmonary epithelioid hemangioendothelioma misdiagnosed as a benign nodule

Figure 2

Pathological findings. (A) The nodule is well-demarcated, hyalinized, and within the lung parenchyma (hematoxylin and eosin, ×40). (B) Variable-sized and irregularly shaped tumor cells with round to oval shape nucleus are located in the hyalinized stroma. Some of the neoplastic cells are rich in eosinophilic cytoplasm (×200). (C) There are characteristic intracytoplasmic vacuoles in the tumor cells (arrow; ×400). (D) The tumor cells are immunoreactive for CD31 in the cytoplasm (×400).

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