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Consult a surgeon ..usg abdomen look for organomgaly...tumour markers...viral diseases..cbc and peripheral smear with differential count..bld culture..elisa igg igm..rule out infection..fever..ct brain...needed...nodal excision and biopsy..

Need an detail history. Is lymph node swelling associated with fever , cough . Is there any history of any family  member suffering from chronic  cough ( more than 2 week )

Please share details of your symptoms. Get cbp with esr, X ray chest and FNAC done of enlarged lymph node and share results. Then I can help you to heal.

A small oval lymph node measuring 16 × 10 mm in the left posterior triangle of the neck with central hilar echo (fatty hilum visible) is most likely benign / reactive. Key reassuring features: • Oval shape (not round) • Presence of central hilar echo (normal fatty hilum) • Size 16 mm short axis is borderline but still often considered within reactive range (especially if no other suspicious features like irregular margins, loss of hilum, calcification, or very low echogenicity) This pattern is very common after: • Recent or ongoing upper respiratory infection / cold • Dental / throat / ear infection • Skin irritation or minor injury in head-neck area • Viral illnesses (even if mild or unnoticed) It is not typical of serious conditions like lymphoma or metastasis when the hilum is preserved and shape is oval.

Need few more details for proper understanding of your issue. You can consult with me online on Practo or whatsapp on eight three one eight four six nine eight eight six for proper diagnosis, conclusion and management

It's benign cause may be multiple  including  hair, ear, teeth, so n so. Tab Augmentine duo625 three times a day after food for five days.  Zerodol sp3 times a day after food for five days. Montek lc one at night for five days. Size regress or resolve.

when was this ultrasound taken? Do you have any swelling/fever now?

Can help you, kindly consult and provide detailed history for proper diagnosis and further management

Need a few more details please consult for further evaluation and treatment

These are features of a benign (reactive) lymph node, not cancer. Reactive lymph nodes. commonly enlarge due to-Recent or ongoing throat, ear, dental, scalp, or skin infection,Viral illnesses,Inflammation.No biopsy or surgery is needed right now. Follow-up and observation is the correct approach.