<s>[INST] I HAVE A 5 YEAR OLD GELDING AND AT THE BOTTOM OF HIS NECK HIS GLANDS R VERY BIG WHEN WE FIRST GOT HIM THEY WHERE LITTLE LIKE A GUM BALL THEN AFTER FEW WEEKS THEY WHERE GONE NOW THEY R BACK ONE SIDE IS BIG LIKE LITTLE BIT BIGGER THAN A GOLF BALL AND ONE IS SIZE OF A SOFTBALL ON HIS LEFT ONE HE HAS A SCRATCH RIGHT INN THAT SPOT... ANY ADVISE PLEASE WOULD HELP [/INST] HI...this is significant lymphadenopathy or selling of lymph nodes in the neck region. This definitely requires evaluation and the possibilities could be - Prolonged viral illness / Kikuchi's disease/ neoplasm.I suggest you to take him to your pediatrician and get him evaluated thoroughly.Regards - Dr. Sumanth </s>