Collagenous Colitis : Trichrome
Image Description
A trichrome stain is useful in highlighting the thickened subepithelial collagen layer in collagenous colitis. The stain also shows its irregular lower border - a feature not seen with normal basement membrane.
Image courtesy of: Ed Uthman, MD, Houston, Texas, USA.
Image courtesy of: Ed Uthman, MD, Houston, Texas, USA.