Hello and welcome to HCM,
Enlarged breasts in a teenage boy is most commonly due to hormonal disturbences.
Thyroid function tests
levels are required in this situation.
However, you have mentioned that you have consulted an endocrinologist
and the hormonal levels are within normal limits. This means that the endocrinal organs are functioning normal.
As far as surgery is concerned, surgical excion of the enlarged breasts can be done.
The results of mastectomy
in males is good.
Thanks and take care.
Dr Shailja P Wahal