Thanks for the query to H.C.M. Forum.
If I were your treating doctor for this case of enlargement of lymph node , I would come up with these possibilities , these includes.
1 Septic pharyngitis
this is most common cause of swelling in the throat and jaw angle . Diagnosis can be confirmed by physical as well clinical history of illness by an E N T specialist .
2 May be tubercular lymphadenitis
, diagnosis can be confirmed by biopsy
of enlarged lymph nodes and clinical history.
3 May be due to secondary infection due to teeth ( tooth ) infection . As sometimes impacted tooth
got infection and this infection involves whole area causing swelling and difficulty in swallowing.
Diagnosis can be confirmed by physical examination by a dental surgeon .
In my opinion get in C B C as well E S R ( blood ) examination and consult an E N T expert .
Good luck. Dr. HET