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Although uncommon, genitourinary tuberculosis is the most common site of extrapulmonary tuberculosis infection. Its diagnosis is often difficult. This article provides an overview of the pathologic and radiologic findings of this disease process.

Temporomandibular joint (TMJ) internal derangement is fairly prevalent in patients presenting with facial pain. MR imaging has become the primary modality for the assessment of the temporomandibular joint. A review of the normal anatomy and the key imaging findings of the different pathologic entities affecting this joint are presented. A reading algorithm to facilitate a systematic interpretation of the TMJ imaging study also is provided.

Technologic advances in MR imaging have had a decisive effect on the capacity of investigators to image the TMJ. This article provides a description of the normal anatomy and function of this joint. emphasizing the key imaging findings of internal derangement. A reading algorithm is given to achieve a systematic approach to the interpretation of a temporomandibular MR imaging study. Finally, a summary of key imaging findings of other miscellaneous pathologic processes involving this joint is provided.