Hi ! Good evening. I am Dr Shareef answering your query. This could be a congenital benign cyst, which after a thorough clinical examination and related investigations like an FNAC, could be taken out and sent for a histopathology study (excision biopsy). This should cure the problem as most such lumps in this region would come out to be benigh. I hope this information would help you in discussing with your family physician/treating doctor in further management of your daughter s problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. I wish you an early recovery. Dr Shareef.