<prompt> Gaseous necrosis is seen in -CMV infectionStaphylococcal infectionTreponemal infectionHSV infection  <response>: Ans. is c i.e., Treponemal infection Caseous necrosis is a feature of syphilis which is caused by tremonemal infection.Gaseous necrosisIt is a variant of coagulative necrosis. It is most commonly encountered when cell death is attributable to eain organismse.g., mycobacterium tuberculosis TB, syphilis and fungi Histoplasma, Coccidioidomycosis. 