Can be a lymph node swelling
Thanks for posting your query.
The long tubular lump in the left supraclavicular area is likely to be due to a pulled muscle or an enlarged lymph node
or a soft tissue
swelling like lipoma or fibroma
. Since the swelling has subsided slightly, it is likely to be a benign swelling.
For the confirmation of diagnosis, you need to get this lump examined from a doctor and get a MRI scan/ CT scan
for any soft tissue growth and a FNAB (fine needle aspiration biopsy
Till then, you get this lump examined from a doctor, apply warm compresses on the lump because if it is a swollen lymph node or pulled muscle then application of warm compresses will help.
I hope this answers your query.
In case you have additional questions or doubts, you can forward them to me, and I shall be glad to help you out.
Wishing you good health.
Dr. Praveen Tayal.