My son came to me with a hard lump on top of his head. Hard. Size of small bouncy ball cut in half. No recent trauma he recalls.no pain. no redness or bruising. Neuro appears WNL.
A dermatologist to see this lesion because it is so atypical to have a lesion of some size suddenly on the head of young person without preceding trauma or other occurrences.
Was there a bite? Was there minor trauma which could be a organizing hematoma? See your dermatologist a soon as possible!