肺结核球是一种特殊类型的肺结核,指直径在2cm或2cm以上的圆形、卵圆形或不规整的纤维干酪病灶,多数起源于继发性肺结核病灶,少数由原发性肺结核病灶发展而来[1]。因本病约有半数患者无症状,但痰菌阳性者却占5%～30%[2],而直径较大、周围包有纤维包膜、坏死组织内无血管,药物难 Tuberculosis is a special type of tuberculosis. It refers to the round, oval or irregular fiber cheese lesions with a diameter of 2 cm or more. Most of them originate from secondary pulmonary tuberculosis and a few from primary pulmonary tuberculosis. Come [1]. Due to the disease about half of patients asymptomatic, but sputum positive accounted for 5% to 30% [2], while the larger diameter, wrapped around the fibrous capsule, necrotic tissue without blood vessels, drugs difficult