<prompt> PAS does not stain:Fungal cell wallBasement membrane of bacteriaGlycogenLipids  <response>: PAS Stain in used for glycogen and mucopolysaccharide containing structures. There are 2 type of PAS positivity a Diastase sensitive PASVE It occurs is I Ewing sarcoma II Primitive neuro ectodermal tumors III Glycogen storage disease IV Seminoma V Embryonal rhabdo myosarcoma b Diastase Resistant PAS ve I alpha one antitrypsin Deficiency II alveolar soft pa sarcoma 