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 -- EARLY STAGE, PROXIMAL INTERPHALANGEAL JOINTS; left image-clinical; right image-radiograph -- CLINICAL-There is fullness of the knuckle with loss of the wrinkle and a bulge. RADIOGRAPHIC-The third PIP joint may reveal the earliest abnormality. Pathological chains include soft tissue s (PLAIN FILM)