A 61-year-old man, who had medical history of hepatitis type C, surgery for malignant melanoma ofthe lower limb, endoscopic mucosal resection for esophageal cancer, was pointed out a pulmonary nodulein the right middle lobe by surveillance computed tomography after 5 years of surgery for melanoma.Pathology of esophageal cancer was squamous cell carcinoma limited in mucosa without lymphatic norvenous invasion. The nodule gradually enlarged and respiratory endoscopic examination could notestablish pathological diagnosis. Thoracoscopy-assisted pulmonary biopsy revealed squamous cell carcinoma,and right middle lobectomy with mediastinal node dissection was performed. Histological examinationshowed moderately differentiated squamous cell carcinoma without lymph node involvement.The stage of lung cancer was T1N0M0, stage ⅠA. Although 9 months have passed since surgery forlung cancer, recurrence of each malignancy has not been detected.