Submit fresh tissue or tissue fixed in phosphate buffered formalin. All biopsy specimens should be placed in 10% buffered neutral formalin immediately upon removal, except for samples for frozen section, examination prior to fixation, photography, or per instructions for special laboratory procedures. For additional information consult the MLabs Client Services Center regarding appropriate handling of the specimen and fixation prior to collection of specimen. The name of the responsible staff physician must be on the request form, legibly written. Tissue fixed in formalin CANNOT be used for microbiological culture, electron microcopy, and certain types of histochemistry requiring frozen sections. Slides from outside the University Hospital must be accompanied by letter or pathologist's report from the outside institution. All specimens of any type must be accompanied by the appropriate requisition form containing the patient's complete name, social security or medical record number, test(s) required, requesting physician's name, and pertinent clinical history.