Table 1.

Patient details

Patient	Age (years)	Sex	Tissue	Time (years) since previous episode	Duration of pre-operative treatment (months)
A 1–7	42 ± 14	F	L (TB)	Np-24	0–12
A8–10	40 ± 6	M	L (TB)	Np	0–4
A11–14	36 ± 10	F	L (S)	0	0
A15–19	35 ± 8	M	L (S)	0	0
C1–2	3 and 6	F	L (TB)	2 and Np	6
C3	7	M	L (TB)	5	2
C4–5	2 and 8	F	LN (TB)	Np	4–5 days
C6–10	4 ± 2	M	LN (TB)	Np	0–20 days

Pre-operative treatment included rifampicin, isoniazid and pyrazinamide. Age is mean ± SEM. C, child; A, adult; F, female; M, male; L, lung; LN, lymph node; TB, tuberculosis; S, sarcoid; Np, no previous episode.