ing ▁neck ▁mass ▁which ▁may ▁compress ▁the ▁nearby ▁tra che a ▁thereby ▁causing ▁narrow ing ▁or ▁obst ruction ▁of ▁the ▁air way ▁resulting ▁in ▁breath ing ▁difficulties ▁or ▁even ▁resp ir atory ▁failure . ▁On ▁physical ▁exam ination , ▁affected ▁people ▁typically ▁exhib it ▁a ▁firm ▁thy roid ▁g land ▁and ▁en larg ed ▁l ym ph ▁nodes . ▁ ▁P ain less ▁neck ▁mass ▁Ho ars eness ▁D iff icult y ▁sw allow ing ▁Sign s ▁of ▁tra che al ▁compression ▁ ▁Di agn osis ▁Th y roid ▁l ym ph oma ▁pos es ▁a ▁di agnostic ▁and ▁th era pe ut ic ▁challenge . ▁This ▁is ▁because ▁several ▁manifest ation ▁patterns ▁are ▁similar ▁to ▁those ▁of ▁an ap last ic ▁thy roid ▁cancer ▁( AT C ). ▁Fine - need le ▁asp iration ▁( F NA ) ▁helps ▁distinguish ▁the ▁two ▁entities ▁pre oper atively . ▁ ▁Hist op ath ology ▁ ▁The ▁majority ▁of ▁thy roid ▁l ym ph omas ▁are ▁non – H od g kin ' s ▁B - cell ▁l ym ph omas ; ▁a ▁minor ity ▁exhib it ▁properties ▁of ▁T - cell ▁l ym ph omas ▁. ▁ ▁D iff use ▁large ▁B - cell ▁l ym ph oma ▁with ▁marg inal ▁zone ▁D iff use ▁large ▁B - cell ▁l ym ph oma ▁without ▁marg inal ▁zone ▁Marg inal ▁zone ▁В - cell ▁l ym ph oma ▁of ▁m uc osa - associ ated ▁l ym ph oid ▁t issue ▁( MA LT )