Primary large cell neuroendocrine carcinoma of the bladder: A case report

Figure 2 Cystoscopy and pathological examination of tissue samples obtained after biopsy. A: Cystoscopy showed that there was a 2 cm × 2 cm-sized spherical pink mass on the anterior wall of the bladder with tortuous blood vessels on the surface; B: Pathological examination after biopsy with hematoxylin and eosin staining showed cells with pronounced atypia, large and differently shaped cells and nuclei, and deeply stained nuclei. Bladder malignant tumor was considered after pathological examination (× 200).