Thanks for writing to us.
As the individual has not been physically seen, the probabalities are being discussed here.,
The lump you are talking about could be
(a )Sebaceous cyst:-A blocked oil(called Sebum) secreting gland in the scalp
with a blocked pore.If the swelling is located above the course of a vein ,then the distal part of the vein gets engorged due to blockage.
(b)Keloid;-If you have injured the part before and the healing has been complicated without a proper suturing an irregular collection of collagen
tissue appears.It is also firm to hard in consistancy but itching may be there.
Cyst;-The cysts are cogenital ie., they are found since birth //usually found along the embryonic processes fusional areas filled with a pultaceous material with indentation on the underlying bony structure.Rarely an intracranial extension may be present.
The conditions (a) and (b) are acquired but the condition (c) is present since birth.
Kindly consult a general surgeon
to acsertain the exact nature of swelling.
Pls do all the routine and special investigations and go ahead with the removal.
Wishing you a speedy recovery,
Dr Lt Cdr ASN Bhushan.