Radiology Review for Residents
http://radiology.rsnajnls.org
Radiology RSS feed -- recent Review for Residents articles1527-1315Radiology0033-8419Radiologyhttp://radiology.rsnajnls.org/icons/banner/title.gif
http://radiology.rsnajnls.org
<![CDATA[[Review for Residents] Radiographic Evaluation of Arthritis: Degenerative Joint Disease and Variations]]>
http://radiology.rsnajnls.org/cgi/content/short/248/3/737?rss=1
In the presence of joint space narrowing, it is important to differentiate inflammatory from degenerative conditions. The presence of osteophytes, bone sclerosis, and subchondral cysts and the absence of inflammatory features such as erosions suggest osteoarthritis. Typical osteoarthritis involves specific joints at a particular patient age. When osteoarthritis involves an atypical joint, occurs at an early age, or has an unusual radiographic appearance, then other causes for cartilage destruction should be considered, such as trauma, crystal deposition, neuropathic joint, and hemophilia. There are several types of arthritis, such as juvenile chronic arthritis and gouty arthritis, that may have a variable appearance compared with that of other common inflammatory arthritides.
]]>2008-08-18info:doi/10.1148/radiol.2483062112Radiological Society of North America32487472008-09-01737Review for Residents<![CDATA[[Review for Residents] Radiographic Evaluation of Arthritis: Inflammatory Conditions]]>
http://radiology.rsnajnls.org/cgi/content/short/248/2/378?rss=1
In the presence of joint space narrowing, it is important to differentiate inflammatory from degenerative conditions. Joint inflammation is characterized by bone erosions, osteopenia, soft-tissue swelling, and uniform joint space loss. Inflammation of a single joint should raise concern for infection. Multiple joint inflammation in a proximal distribution in the hands or feet without bone proliferation suggests rheumatoid arthritis. Multiple joint inflammation in a distal distribution in the hands or feet with bone proliferation suggests a seronegative spondyloarthropathy, such as psoriatic arthritis, reactive arthritis, or ankylosing spondylitis.
]]>2008-07-18info:doi/10.1148/radiol.2482062110Radiological Society of North America22483892008-08-01378Review for Residents<![CDATA[[Review for Residents] Finding Early Invasive Breast Cancers: A Practical Approach]]>
http://radiology.rsnajnls.org/cgi/content/short/248/1/61?rss=1
Detection of early invasive breast cancer is important, as patient survival is high when the cancer is 2 cm or smaller. Invasive breast cancers typically manifest mammographically as focal asymmetries or masses. Strategies for detecting focal asymmetries and masses on screening mammograms include side-by-side comparison, looking for parenchymal contour deformity, close inspection of the retromammary fat, identifying the presence of associated findings, and comparison with prior mammograms. Focal asymmetries are often normal but are concerning when there is distortion of the normal breast architecture. Masses and focal asymmetries are best evaluated in the diagnostic setting by using spot compression and true lateral views and, frequently, ultrasonography. Management of a lesion depends on the worst imaging feature. Indications for an assessment of probably benign findings are very specific but are often misapplied. This review for residents provides a practical approach to the detection and management of breast masses and focal asymmetries.