Several things. . .: If you are talking about swelling under the jaw: salivary gland stone, salivary gland tumor, inflammatory lymph node, cyst, lipoma. I am not sure what you mean by the back of the throat but possible swellings back there would include: tonsil edema, tonsil inflammation, fluid collection due to an abscess (but there should be pain) or noninflammatory causes.
Answered 5/16/2013
6.2k views
Not tumor: In addition to dr. Zapanta's explanations, would comment that tumors are hard, not soft (lymphoma typically ruber-hard, carcinoma just hard). Inflammation secondary to infection may be the most common cause if its tender...
Answered 6/25/2013
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