What would cause a single lymph node to swell on the back of the neck? Could dehydration cause it? I was hospitalized due to passing out due to dehydration. It's been there
![Preoperative image of supraclavicular cystic mass on the left ( arrows... | Download Scientific Diagram Preoperative image of supraclavicular cystic mass on the left ( arrows... | Download Scientific Diagram](https://www.researchgate.net/profile/Karol-Zelenik/publication/225772895/figure/fig1/AS:302785015894022@1449200981907/Preoperative-image-of-supraclavicular-cystic-mass-on-the-left-arrows-mark-the-swelling_Q640.jpg)
Preoperative image of supraclavicular cystic mass on the left ( arrows... | Download Scientific Diagram
![I have recently found a pea sized lump above my left collarbone. I have had this lump before in the same place. What can this mean? - Quora I have recently found a pea sized lump above my left collarbone. I have had this lump before in the same place. What can this mean? - Quora](https://qph.cf2.quoracdn.net/main-qimg-0da428fe8b03a206b2ae7ca356051467.webp)
I have recently found a pea sized lump above my left collarbone. I have had this lump before in the same place. What can this mean? - Quora
![The lymph node near my collar bone swelled up a few days after my covid vaccine. (It moves around if I push it) : r/mildlyinteresting The lymph node near my collar bone swelled up a few days after my covid vaccine. (It moves around if I push it) : r/mildlyinteresting](https://preview.redd.it/4vcnws7eslf71.jpg?auto=webp&s=85298eed70a15d982132caadcdaaddcf0986fe97)
The lymph node near my collar bone swelled up a few days after my covid vaccine. (It moves around if I push it) : r/mildlyinteresting
![Lymphatic Drainage Massage for Face, Head, & Neck Swelling or Lymphedema - By a Physical Therapist - YouTube Lymphatic Drainage Massage for Face, Head, & Neck Swelling or Lymphedema - By a Physical Therapist - YouTube](https://i.ytimg.com/vi/VQdLZ26r-rU/maxresdefault.jpg)