Clinical presentation
Signs in radiology
Signs organized by diagnosis, body location, or name the radiographic sign.

A pattern approach to diagnosis, based on radiographic findings. Written by Michael L. Richardson of the University of Washington. Topics:
Radiolucent Lesions
Periosteal Reactions
Osteopenia

Decision-making
Imaging for Knee Tauma
The Ottawa knee-rules What are the clinical findings that indicate a need fo imaging studies – and what are the preferred studies? This educational program combines audio and visuals to explain when imaging is required.

Imaging for Ankle Tauma
The Ottawa knee-rules What are the clinical findings that indicate a need fo imaging studies – and what are the preferred studies? This educational program combines audio and visuals to explain when imaging is required.

Differential diagnosis of low back pain
A a full-text article from the Annals of Intenal Medicine. Aimed at the primary care population this article is a meta-analysis of the diagnostic accuracy of clinical information and imaging in low back pain.

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