試題詳解

46.A 32-year-old nonsmoking woman presents with a solitary, well-circumscribed peripheral lung nodule
discovered incidentally on imaging. She is asymptomatic. Wedge resection reveals a lesion composed
of disorganized but benign-appearing cartilage, fibrous tissue, and clefts lined by respiratory
epithelium. Which of the following is the most appropriate diagnosis?
(A) Adenocarcinoma carcinoma in situ of the lung
(B) Metastatic lesion lesion from an extrapulmonary primary
(C) Pulmonary hamartoma
(D) Bronchial carcinoid tumor