32F, LT submandibular lymph node enlargement (exactly below the angle of the mandible) for 3 yrs and very slowly increased in size, now approx. 1 cm. Not so hard on touch, no pain. Pt is smoker and recently dx with H.pylori infection and a pre-ulcerous lesion from GI-scopy. CBC, CRP normal. Asked for XR to check for any pericapical lesion. What could be the Dx? Any suggestion regarding biopsy?