IFI is a potential cause of hip pain that can be accurately diagnosed with MRI in conjunction with clinical findings. Using the proposed measurement thresholds may better identify patients with this impingement syndrome so that optimal treatment options can be pursued.
This article presents three patients with acute calcific periarthritis (ACP) of the hand and wrist. ACP is an unusual, painful, monoarticular, periarticular inflammatory process associated with juxtaarticular deposits of amorphous calcium hydroxyapatite. ACP is a distinct clinical subset of hydroxyapatite deposition disease. ACP has a high rate of misdiagnosis because of its rare occurrence and its clinical resemblance to other entities. Clinical presentation may simulate infection, and the associated periarticular calcifications may be mistaken for gout, pseudogout, or other entities. One third of patients with ACP provide a history of antecedent trauma. Treatment is conservative. Patients typically will have a reduction in symptoms within 4-7 days after the acute onset of pain. Radiographically, the periarticular mineralization usually resolves or markedly decreases within 2-3 weeks, although on occasion, some calcifications may remain visible for months. Failure to recognize and correlate the typical clinical and radiographic presentation of this disease may lead to unnecessary diagnostic tests, invasive procedures, and inappropriate medication.
Pain and focal masses in the foot and ankle are frequently encountered and often initiate a workup including imaging. It is important to differentiate benign lesions from aggressive benign or malignant lesions. In this review, multiple examples of osseous and soft tissue tumors of the foot and ankle will be presented. Additionally, the compartmental anatomy of the foot and ankle will be discussed in terms of its relevance for percutaneous biopsy planning and eventual surgery. Finally, a general overview of the surgical management of benign, benign aggressive and malignant tumors of the foot and ankle will be discussed.
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