<prompt> Chondritis of aural cailage is most commonly due to which of the following?StaphylococcusPseudomonasCandidaBoth staphylococcus and Pseudomonas  <response>: Perichondritis results from infection secondary to lacerations, haematoma or surgical incisions. It can also result from the extension of infection from diffuse otitis externa or a furuncle of the meatus. Pseudomonas and mixed flora are common pathogens. Ref: Textbook of ENT, PL Dhingra, 7th edition, pg no. 53 