It is usually caused by the most common cause of<unk> is in the lungs, namely Mycobacterium<unk> is. It has sometimes also been caused by related bacteria, including M. bovis, M. kansasii, M. fortuitum, M. marinum, and Mycobacterium ulcerans.
Tuberculous lymphadenitis
Caseous lymphadenitis
Mycobacterial cervical lymphadenitis
Tick-borne lymphadenopathy
Primary mediastinal B-cell lymphoma
Dermatopathic lymphadenopathy
Sebaceous lymphadenoma
Extrapulmonary tuberculosis