Native and prosthetic septic arthritis in a university hospital in Saudi Arabia: A retrospective study

Table 6 Tuberculosis acid-fast bacilli, tuberculosis polymerase chain reaction, tuberculosis culture, histopathology

Test	Status	N	%
TB AFB	Negative	18	34.6
	Not sent	33	63.5
	Positive	1	1.9
TB PCR	Positive	2	3.8
	Negative	12	23.1
	Not sent	38	73.1
TB culture	Negative	15	28.8
	Not sent	35	67.3
	Positive	2	3.8
Histopathology	Exudate and granulation tissue	1	1.9
	Features of septic joint	2	3.8
	Features of synovitis	1	1.9
	Inflamed granulation tissue	2	3.8
	Inflammatory changes	2	3.8
	Noncaseating granuloma	1	1.9
	Not sent	43	82.7

TB AFB: Tuberculosis acid-fast bacilli; TB PCR: Tuberculosis polymerase chain reaction.