A 72-year-old male presented to the hospital with a complaint of dysphagia. The patient developed dysphagia 5 mo ago with no obvious cause, which was evident when eating rough food, no poststernal burning pain, no back pain, no nausea, vomiting, or fever, and no hoarseness. Three months prior, the patient was admitted to our hospital. The gastroscopy showed that a new protrusion-type tumor could be seen about 35 cm away from the incisor, and the examination indicated poorly differentiated cancer. The chest enhanced CT showed that the lower thoracic segment of the esophagus and the wall of the cardiac tube were irregularly thickened, which indicated the possibility of esophageal cancer. Small nodules in the apex segment of the upper lobe of the right lung were considered chronic inflammation. Calcification in the dorsal segment of the lower lobe of the right lung and scattered interstitial changes in both lungs were observed. The patient had no history of hypertension or diabetes. The patient had a history of smoking and drinking for > 40 years. On physical examination, the vital signs were as follows: body temperature, 36.4 °C; heart rate, 62 beats per min; respiration, 20 breaths per min; blood pressure, 125/79 mmHg; and Eastern Cooperative Oncology Group score, 0 points. The superficial lymph nodes of the whole body were not enlarged. Lung sounds were normal, the heart boundary was not enlarged, the membrane was flat and soft, and there was no tenderness or rebound pain. Physiological reflex existed, and pathological reflex did not arch out. Blood analysis, liver function, kidney function, coagulation function, and urine and stool analysis showed no abnormalities. Narrow band imaging revealed vascular texture, and biopsy indicated soft texture. Pathological section findings were observed by microscopy.