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Surgical Case Reports
Fig. 7 | Surgical Case Reports

Fig. 7

From: Anaplastic lymphoma kinase-positive inflammatory myofibroblastic tumor of the breast: a case report and review of the literature

Fig. 7

Histopathological examination (HE stain). a Ill-defined tumor with slightly fibrotic surrounding mammary glands. b Proliferation of fibroblastic cells arranged in a storiform pattern (× 10). c Infiltration of chronic inflammatory cells and histiocytic cells with variously sized spindle cells (× 40). d, e Immunohistochemical examination: diffuse positivity for ALK-1 (× 40) and negativity for IgG4 (× 20). HE hematoxylin–eosin, ALK-1 anaplastic lymphoma kinase-1

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