<prompt> A male patient presented with granulomatous penile ulcer. On Wright geimsa stain tiny organisms of 2 microns within macrophages seen. What is the causative organism?LGVCalymmatobacterium granulomatisNeisseriaStaph aureus  <response>: Ans. is b i.e., Calymmatobacterium granulomatosis Investigations Tissue smearMade from a piece of crushed ulcer tissueStained with Giemsa or Leishman stainOrganisms appear as intracellular in macrophages bipolar inclusions - safety pin or telephone handle appearance. 