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Painful Os Peroneum Syndrome: Underdiagnosed Condition in the Lateral Midfoot Pain
Francisco Abaete Chagas-Neto1, Barbara Nogueira Caracas de Souza2, Marcello Henrique Nogueira-Barbosa3
1Division of Radiology, Antonio Prudente Hospital, Fortaleza, CE, Brazil; School of Medicine, Division of Radiology, University of Fortaleza, Fortaleza, CE, Brazil; School of Medicine, Division of Radiology, Christus University Center, Fortaleza, CE, Brazil.
Abstract:
Os peroneum is an accessory ossicle located within the peroneus longus tendon. The painful os peroneum syndrome (POPS) results from a wide spectrum of conditions, including fractures, diastases, and other causes. POPS can result in tenosynovitis or discontinuity of the peroneus longus tendon with a clinical presentation of pain in the lateral aspect of the midfoot. Authors report a typical case of POPS, illustrating this entity through different imaging methods (radiographs, ultrasound, and magnetic resonance imaging). We emphasize the prevalence of this ossicle and discuss painful complications.
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