1. 주소 : 흉부 방사선 소견상 이상 나이 / 성별 : 27 세 / 남자 현병력 : 6 년전 우연히 폐 종괴 발견. 최 근 종괴의 크기가 커져 입원함. 과거력 : 특이사항 없음. 사회력 : 흡연력 없음. 의사. 여행력 없음. 진찰소견 : 우하엽의 호흡음 감소.

7. Carcinoid of Tracheobronchial Tree Relatively uncommon lung cancer –0.4 – 3% of all resected lung cancer Neuroendocrine origin Classification –Typical carcinoid : Kulchitsky cell class I tumor(KCC-I) –Atypical carcinoid : Kulchitsky cell class II tumor (KCC-II) 13% of carcinoid Increased mitotic activity (2 to 10 mitoses/10 HPF) More aggressive, metastases and L/N involvement not uncommon

8. Age –Median 47, Bimodal age distribution One at 35 yr, another at 55 yr Atypical carcinoid: older Sex: 1:1 Sx –Related to location of tumor Cough, hemoptysis, recurrent pneumonia –Carcinoid syndrome rare 0.7% at presentation, 2-3% with follow up Carcinoid of Tracheobronchial Tree