Collision carcinoma of squamous cell carcinoma and small cell neuroendocrine carcinoma of the larynx: A case report and review of the literature

Figure 3 Pathology images. Pathology showed coexistence of squamous cell carcinoma (SCC) cells and neuroendocrine carcinoma (NEC) cells. A: The classic pattern of squamous epithelial dysplasia, visible keratinized beads, and infiltrative growth. Hematoxylin-eosin staining (original magnification, ×200); B: The pattern of NEC, in which most of the areas of the tumor were poorly differentiated, and diffusely infiltrated by small round cells, and the cells were heterogeneous. Hematoxylin-eosin staining (original magnification, ×200); C: The SCC component and NEC component coexist in the specimen organization. Hematoxylin-eosin staining (original magnification, ×100).