PEIR Digital Library

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

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MONTAGE: JOINT: Course of Rheumatoid Arthritis, Clinical and radiographic progression -- MIDDLE STAGE, PROXIMAL INTERPHALANGEAL JOINTS; left image-clinical; right image-radiograph -- CLINICAL-The PIPs become hyperextended due to the contracture of the intrinsic muscle tendon complex. The muscles become extensors of the joint, rather than flexors. RADIOGRAPHIC-There is los (PLAIN FILM)