Dear All, My Pathologist want to know regarding Growth of organism, porosity & cracks in 2x2 cm specimens material of acrylic resin(PMMA),(pre-Inoculate). I have no idea, help please. Thanks advance. Muhammad Tahseen Histology Supervisor, Shaukat Khanum Memorial Cancer Hospital & Research Centre Lahore,Pakistan. tahseen <@t> brain.net.pk