Inflammatory Myofibroblastic Tumors in Paranasal Sinus and Nasopharynx: A Clinical Retrospective Study of 13 Cases

Figure 6

HE and immunohistochemical staining pictures of an ALK negative and PD-L1 positive case (Case 2) were shown in (a), (b), and (c) (original magnification ×200). Another ALK positive and PD-L1 positive case (Case 7) was shown in (d), (e), and (f) (original magnification ×100).