<prompt> Ecthyma gangrenosum seen in?Pseudomonas septicemiaLepromatous leprosyUlcerative colitisAll of the above  <response>: Ecthyma Deeper variant of impetigo Indurated lesion with necrotic cruston removalforms ulcer Three types Ecthyma gangrenosum - Pseudomonas aeruginosa Ecthyma pyogenicum - Strep, Staph aureus Ecthyma contagiosum Contagious pustular disease Orf disease - Parapox virusORF virus. It is zoonotic viral condition which spreads sheep goat. Pseudomonas septicaemia most commonly occurs in the severely compromised host. 