Table 2.

Possible reasons for lung carcinomas’ spontaneous regression

Neurologic disorder	Immunological reaction
Paraneoplastic neuronal antibodies [34,38]	Essiac tea [35]
Ataxic sensorimotor neuropathy [36]	HAART (AIDS) [26]
Senile mental illness [37]	Lower respiratory tract infection (fever and cough with yellowish sputum) [20]
Auditory hallucinations [39]	Pulmonary tuberculosis [24]
	Anti-NY-ESO-1 immunity [29]
	Massive infiltration of CD8+ lymphocytes [31]
	Hepatitis B virus [25]