Is it possible to find a lymph nodes in the baby's buttock?

I never have: Round & nodular masses found on a babies bottom are more likely to represent an abscess or cysts of various origin. I follow these closely. If they appear inflamed or painful they may need surgical drainage. An ultrasound can define the structure more & give information that helps with diagnosis.

I never have: Any knot like mass within the buttocks should be considered an abscess until that DX has been excluded on exam.