HI,Dear, Thanks for the query from you for your enlarged lymph nodes in the back of head / and on the neck side areas since his infancy for last 2 yrs.1-I feel concerned that you are serious to know why these lymphnodes are enlarged than others.?2-In my opinion these enlarged lumps are harmless as your paediatrician has pacified your worry.3-These lymph nodes indicate mild scalp infestation/ infection with ? repeated throat infection-which is another probability,which needs to be suspected and treated.4-But as you havent menioned any nasal discharge or else, another possibility to suspect is the -T.B.lymph node hyperplasia,which may be a sign of the reactive immunological response to mild infection, which needs to be ruled.5-Hence I would advise a second opinion from a chest/or general physician who would do -CBC,X-ray chest ,PPD skin test-(Montoux tes).This would lead you on your worry which you expressed about lymph nodes enlargement. 5-a-A drug trial with proper antibiotics and antifungal ointment the skin infection and skin infestation of the scalp and of the throat , would resolve your worry.6-Hence I would advise ER Chest/or general physicians opinion.7-Hope this would resolve the causative worry of the patient in question .If treated on this line, the fearing patient , should not worry you much.8-Hope this would solve your worry of the enlarged lymph nodes of your baby of 2 yrs.9-Wellcome to HCM for any more query.