The L Forms of tubercle bacillus were found in 34 of 56 cases(60.7%)by acid fast staining and in 41 of 56 cases(73.2%)by immunohistochemical staining.

• 5 6例中有 2 4例 (6 0 .；7%25 )抗酸染色检出结核菌 L型 ; 41例 (73