Uniportal video-assisted thoracoscopic fissureless right upper lobe anterior segmentectomy for inflammatory myofibroblastic tumor: A case report

Figure 5 Microscopic morphology. A: Microscopic examination showing a hypercellular nodule comprising spindle-shaped cells arranged in a fascicular growth pattern; B: At higher magnification, plump spindle cell proliferation is observed, interspersed with chronic inflammatory cells; C: Immunohistochemically, the spindle cells exhibit diffuse and strong positivity for anaplastic lymphoma kinase ventana anti-anaplastic lymphoma kinase.