Hi welcome to health care magic.... You have diagnosed granulomatous inflammation.... It could be by...... -syphilis -leprosy -tuberculosis -brucellosis -sometime malignancy -fungal infection -sarcoidosis etc.... You are right . Most common cause TB. Here in report no caseation present. If it was there TB chance very high. So confirm TB by sputum smear examination and chest x ray along with prepared smear checked for TB by AFB smear.... Serological test useful for syphilis and other infections. If needed biopsy taken .... Detail history and examination needed. If TB proved AKT can be taken.... Take care.