Rupture of the plantaris muscle may occur at the myotendinous junction with or without an associated hematoma or partial tear of the medial head of the gastrocnemius muscle. A strain of the more proximal plantaris muscle may also occur as an isolated injury or in conjunction with injury to the ACL.

Magnetic resonance (MR) imaging findings in three patients with acute onset of neuritic shoulder pain and weakness included high signal intensity in supra- and infraspinatus muscles (n = 2), partial involvement of infraspinatus muscle (n = 1) and of deltoid muscle (n = 1), and atrophy of supra- and infraspinatus muscles (n = 2). Clinical diagnosis of acute brachial neuritis (Parsonage-Turner syndrome) correlated with MR imaging results in all cases.

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The Amicus Separator provided satisfactory platelet yields and collection efficiency, with shorter collection times than did the Spectra LRS, and it white cell-reduced components without filtration.

Pes anserine bursitis has a characteristic MR appearance of fluid beneath the tendons of the pes anserinus at the medical aspect of the tibia near the joint line. Pes anserine bursitis can clinically mimic an internal derangement of the knee, which can result in the performance of unnecessary arthroscopy. MR imaging can be useful in diagnosing pes anserine bursitis and obviating surgery.