<prompt> Amyloid deposit stain positively with all of the following exceptCongo redCrystal violetMethanamine silverThioflavin T  <response>: Ref Robbins 9e p262 The Modified Gomori Methenamine-SilverNitrate Stain GMS Stain is intended for usein the histologic visualization of fungi, basement membrane and some oppounistic organisms such as Pneumocystis carinii. 