Primary esophageal diffuse large B cell lymphoma presenting with tracheoesophageal fistula: A rare case and review

Figure 1 Contrasted chest computed tomography imaging showing tracheoesophageal fistula in a 60-year-old male patient.

Figure 2 Esophagogastroduodenoscopy showing a partially obstructing mid-esophageal tumor and tracheoesophageal fistula in a 60-year-old male patient.

Figure 3 Histological features of primary diffuse large B-cell lymphoma in a 60-year-old male patient. A: HE staining shows highly pleomorphic large cell proliferation on sections of neoplasm; B: Immunohistochemistry shows tumor cells with a strongly diffused positive expression for CD20; C: Cytokeratin (CK) AE1/AE3 was negative for the cells of tumor infiltrate; D: P40 was negative for squamous carcinoma.