RESUMO
Objective To improve the diagnostic accurary of peripheral pulmonary masses before operation. Methods 55 cases of peripheral lung mass with percutaneous puncture biopsy under CT guidance were compared with the postoperative pathology. Results 44 out of 55 cases confirmed by operation were lung cancer. 40 cases showed consistent CT findings with pathology reaching accurate rate to 90.9% (40/44). 5 cases were tuberculous granuloma with accurate rate of 80% (4/5). 6 cases were inflammatory pseudotumor (with 2 cases of cryptococcal granuloma) showing accurate rate of 33.3% (2/6). Altogether 55 cases of peripheral lung masses were diagnosed correctly by CT with accurate rate of 83.6% (46/55). Conclusions Percutaneous puncture biopsy under CT guidance for peripheral lung lesions is safe and reliable especially for planning the management.
