Fig. 3

The histopathological examination results of the lesions; a–c show squamous cells growth with invasion to the lamina propria mucosa, muscularis mucosa, and submucosa. d–f Consisted of pleomorphic spindle cells with irregular nuclei and necrosis compatible with leiomyosarcoma (hematoxylin and eosin staining). f Shows 5–6 mitotic figures per 10 high-power fields, including atypical mitotic figures. h Shows the immunohistochemical staining results for leiomyosarcoma: positive for smooth muscle actin, and i show that the Ki-67 labeling index was 15%. g Shows the other tumor's immunohistochemistry study results, a positive result for P63 compatible with a diagnosis of esophageal squamous cell carcinoma. Tumors had no lymphovascular invasion