<prompt> The lesion seen involving neck of this 31 year old female is most likely to be?Epitheliomatous ulcerMalignant cutanous ulcerSyphilytic ulcerTuberculous ulcer  <response>: Locally there will be regional lymphadenopathy where the lymph nodes may be matted. In late stages, a cold abscess-Painless, fluctuant mass, not warm; significantly, there are no signs of inflammation.This is a clinical manifestation of underlying caseation. Left untreated, the cold abscess initially deep to the deep fascia now bursts through into the space just beneath the superficial fascia. This produces a bilocular mass with cross fluctuation- collar-stud abscess. Eventually, this may burst through the skin discharging pus and forming a tuberculous sinus. The latter typically has watery discharge with undermined edges 