Patologias do compartimento iliopsoas: avaliação radiológica

• Autor(a) principal: Leão, Alberto Ribeiro de Souza [UNIFESP]
• Data de Publicação: 2007
• Outros Autores: Amaral, Raquel Portugal Guimarães [UNIFESP], Abud, Thiago Giansante [UNIFESP], Demarchi, Guilherme Tadeu Sauaia [UNIFESP], Freire Filho, Edison de Oliveira [UNIFESP], Novack, Paulo Rogério [UNIFESP], Campos, Flavio do Amaral [UNIFESP], Santos, José Eduardo Mourão [UNIFESP], Shigueoka, David Carlos [UNIFESP], Fernandes, Artur da Rocha Correa [UNIFESP], Szejnfeld, Jacob [UNIFESP], D'Ippolito, Giuseppe [UNIFESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: http://dx.doi.org/10.1590/S0100-39842007000400013; http://repositorio.unifesp.br/handle/11600/3840
• topic: Iliopsoas muscle; Psoas muscle; Computed tomography; Abscesses; Neoplasms; Músculo iliopsoas; Músculo psoas; Tomografia computadorizada; Abscessos; Neoplasias

The iliopsoas compartment, a posterior boundary of the retroperitoneum, is comprised of the psoas major, psoas minor and iliac muscles. The symptoms picture in patients presenting with pathological involvement of this compartment may show a wide range of nonspecific clinical presentations that may lead to delayed diagnosis. However, in the search of an etiological diagnosis, it is already known that inflammation, tumors, and hemorrhages account for almost all the lesions affecting the iliopsoas compartment. By means of a retrospective analysis of radiological studies in patients with iliopsoas compartment lesions whose diagnosis was confirmed by anatomopathological evaluation or clinical follow-up, we have reviewed its anatomy as well as the main forms of involvement, with the purpose of identifying radiological signs that may help to narrow down the potential differential diagnoses. As each lesion is approached we will discuss the main radiological findings such as presence of gas in pyogenic abscesses, bone destruction and other bone changes of vertebral bodies in lesions secondary to tuberculosis, involvement of fascial planes in cases of neoplasms, and differences in signal density and intensity of hematomas secondary to hemoglobin degradation, among others. So, we have tried to present cases depicting the most frequent lesions involving the iliopsoas compartment, with emphasis on those signs that can lead us to a more specific etiological diagnosis.