A case of lung squamous cell carcinoma arising inside an intralobar pulmonary sequestration

Abstract

The case involved a 45-year-old male. He had a low-grade fever and cough, and was pointed out as showing a mass of approximately 10 cm in diameter in the left lower lung field on a chest radiograph. A diagnosis of intralobar pulmonary sequestration was made because feeding arteries from the aorta to the mass were seen on enhanced CT. Although the serum SCC value was high, bronchoscopy revealed no indication of malignancy. Because the sequestration was considered to be accompanied by infection, resection was conducted. In the resected specimen, squamous cell carcinoma, of 8 cm in size, was seen within the sequestration. The serum SCC value was normalized after resection. The patient has remained recurrence-free for 2 years since the resection. When a mass is seen inside a sequestration, the coexistence of lung cancer should be suspected.