PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

[ stop the slideshow ]


00203535.jpg 00203534Thumbnails0020353700203534Thumbnails0020353700203534Thumbnails0020353700203534Thumbnails0020353700203534Thumbnails00203537

DIAGRAM: JOINT: Pathogenesis of Rheumatoid Arthritis, Graphic View-LATE STAGE,neutrophil in pannus; Arrow on Neutrophil -- Physical deformities occur during the late stage of rheumatoid arthritis. Erosions in articular cartilage cause a narrowing of the joint space and a destabilization of the structural elements. Deep erosions in the b