<prompt> Cambium layer is seen in:Embryonal rhabdomyosarcomaPleomorphic rhabdomyosarcomaAlveolar rhabdomyosarcomaUndifferentiated rhabdomyosarcoma  <response>: Ans. a Embryonal rhabdomyosarcomaRef: Robbins 9thpg 1253In Sarcoma botryoides, a variant of embryonal rhabdomyosarcoma, histology shows a cambium layer where the tumors about the mucosa of an organ, they form a submucosal zone of hypercellularity. 