Hi
Welcome to the MedHelp forum!
Yes, supraclavicular lymphadenopathy is worrisome. Especially the ones larger than 1cm in diameter should be investigated thoroughly for cancers and granulomatous diseases.
The right supraclavicular area receives drainage from the intrathoracic organs, whereas the left supraclavicular lymph nodes drain the abdomen. The supraclavicular lymph nodes also receive lymphatic drainage from the breasts. Hence the malignancies of these regions are possible.
Tuberculosis, sarcoidosis, histoplasmosis, cat scratch disease and cryptococcosis are the other possibilities. I think you should discuss these possibilities with your doctor. It is difficult to comment beyond this without examining.
A comprehensive investigation is required keeping all the points in mind. Do let me know if there is any thing else and keep me posted. Take care!
For The Time Id Say No Heavy Lifting & A Good Massage Would Help It At The Moment Other Than That You Need A Scan .! Or To See A Physio =) But I Wouldnt Say Its Anythink To Worry About It Also Sounds Like A Cist .!