Efficacy of TB-PCR using EBUS-TBNA samples in patients with intrathoracic granulomatous lymphadenopathy

BMC Pulmonary Medicine

Table 2 Detailed characteristics of seven patients with grade IV or V for histological results

Characteristics	Patient number
	1	2	3	4	5	6	7
Sex	Female	Male	Male	Female	Female	Female	Female
Age, years	65	78	27	73	63	33	56
Number of LN involved per patient^a	3	3	3	2	4	8	4
Number of LN examined per patient	1	2	1	2	2	2	1
Number of needle pass per LN	6	4 and 2	4	3 and 3	2 and 2	6 and 2	1
Number of tissue core achieved per LN	2	0 and 2	1	1 and 2	2 and 2	1 and 1	0
Stations of LN punctured	7	7 and 11R	4R	4R and 10R	2R and 4R	4R and 7	4R
Shortest diameter of LN punctured, mm	10.6	13.0 and 15.0	32.4	18.9 and 12.2	14.6 and 10.5	17.2 and 12.6	15.7
Results of EBUS-TBNA samples
Acid-fast bacilli smear	Negative	Negative	Negative	Negative	Negative	Negative	Negative
Acid-fast bacilli culture	Negative	Negative	Negative	Negative	Negative	Negative	Negative
TB-PCR	Not detected	MTB detected	MTB detected	MTB detected	Not detected	Not detected	MTB detected
Histological grade	IV	IV	IV	IV	V	V	V
Mediastinoscopy	Performed	Not performed	Not performed	Not performed	Performed	Not performed	Not performed
Final diagnosis	Sarcoidosis	TBL	TBL	TBL	TBL	Sarcoidosis^b	TBL

^aLymph nodes with the shortest diameter ≥ 10 mm on an axial CT scan
^bPatient 6 was clinically diagnosed with sarcoidosis based on radiological and laboratory results after more than 12 months of follow-up
LN, lymph node; EBUS-TBNA, endobronchial ultrasound-guided transbronchial needle aspiration; TB-PCR; polymerase chain reaction for Mycobacterium tuberculosis; MTB, Mycobacterium tuberculosis; TBL, tuberculous lymphadenitis

ISSN: 1471-2466