RESUMO
BACKGROUND: The relationship between meniscal tears and parameniscal cyst formation is contentious. We investigated whether the development of a parameniscal cyst is related to the size of the meniscal tear by using magnetic resonance imaging (MRI). METHODS: On the basis of a retrospective review of an MRI database, we identified parameniscal cysts in 34 patients with adjacent meniscal tears extending to the meniscocapsular junction. The size of the meniscal tear was measured by dividing the length of the tear along two axes: circumferential and radial. We compared parameters, such as the size of the meniscal tear, the location of the tear, the pattern of each tear, and any associated ligamentous injury and intra-articular lesion, between the 34 patients and the 30 control patients who only had meniscal tears with torn components extending to the meniscocapsular junction. RESULTS: Compared with the controls, patients with parameniscal cysts had significantly larger meniscal tears along the circumferential axis (P<0.001). A critical size of the meniscal tear along the circumferential axis of 12mm was associated with the formation of a parameniscal cyst. CONCLUSIONS: A larger meniscal tear extending into the meniscocapsular junction is more likely to be associated with the occurrence of a parameniscal cyst. The critical size of the meniscal tear, 12mm along the circumferential axis as identified using MRI, is a discrimination value for parameniscal cyst formation. LEVEL OF EVIDENCE: Level III.
Assuntos
Cistos/diagnóstico , Artropatias/diagnóstico , Imageamento por Ressonância Magnética/métodos , Lesões do Menisco Tibial , Adulto , Artroscopia/métodos , Estudos de Casos e Controles , Comorbidade , Cistos/epidemiologia , Cistos/cirurgia , Feminino , Seguimentos , Humanos , Escala de Gravidade do Ferimento , Artropatias/epidemiologia , Traumatismos do Joelho/diagnóstico , Traumatismos do Joelho/epidemiologia , Traumatismos do Joelho/cirurgia , Lacerações/diagnóstico , Lacerações/epidemiologia , Lacerações/cirurgia , Masculino , Meniscos Tibiais/patologia , Pessoa de Meia-Idade , Valores de Referência , Estudos Retrospectivos , Medição de Risco , Adulto JovemRESUMO
Intravascular papillary endothelial hyperplasia (IPEH), also known as Masson tumour, is a rare nonneoplastic vascular lesion caused by the abnormal proliferation of endothelial cells. IPEH presenting as a soft-tissue mass may simulate a sarcomatous tumour clinically and radiographically. We report an infant with IPEH affecting the right calf. The MRI appearance is described, and the literature is briefly reviewed. Knowledge of the MR characteristics of IPEH may facilitate its diagnosis and obviate an invasive procedure.
Assuntos
Imageamento por Ressonância Magnética/métodos , Neoplasias Vasculares/diagnóstico , Diagnóstico Diferencial , Endotélio Vascular/patologia , Humanos , Hiperplasia/patologia , Lactente , Perna (Membro)/irrigação sanguínea , Recidiva Local de Neoplasia , Neoplasias Vasculares/patologia , Neoplasias Vasculares/cirurgiaRESUMO
Kimura's disease rarely involves a location outside the head and neck. We report a case of Kimura's disease in a young Asian man involving both elbows. Magnetic resonance imaging showed a soft-tissue mass of irregularly infiltrative strands in the subcutaneous fat accompanied with medial epitrochlear lymphadenopathy. The MRI appearance is described and the entity is briefly reviewed.
Assuntos
Hiperplasia Angiolinfoide com Eosinofilia/diagnóstico , Cotovelo , Adolescente , Diagnóstico Diferencial , Cotovelo/diagnóstico por imagem , Cotovelo/patologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Radiografia , Neoplasias de Tecidos Moles/diagnósticoRESUMO
The occurrence of rectal diverticula is very rare, with only sporadic reports in the literature since 1911. Symptomatic rectal diverticula are encountered even less frequently. Treatments of these complicated events range from conservative treatments to major surgical interventions. We present a hitherto unreported occurrence of isolated rectal diverticulum complicated with rectal prolapse and outlet obstruction. Delorme's procedure resulted in subsidence of symptoms and resolution of the diverticulum. It provides a minimal invasive surgical technique to successfully address the reported malady.
