RESUMEN
To describe clinical and ultrasound findings in a patient with infantile systemic hyalinosis (ISH). A 5-month-old boy was evaluated of joint contractures. In addition to clinical and laboratory investigations, an ultrasound of his joints was done and compared to a child with similar age. On examination, a short neck, gingival hyperplasia and papular rash were noted. Joint examination showed painful passive movement, reduced range of motion, and joint contractures in knees, elbows, and small joints of the hands, without any evidence of synovial thickness. Ultrasound of the affected joints showed irregular cortical surface of MCPs and PIP, the presence of osteophytes and bone erosions, increased synovial fluid without evidence of synovial hyperplasia. This is the first report to show evidence of US findings in ISH. Ultrasound findings may help to distinguish ISH from JIA in early stages.
Asunto(s)
Artritis Juvenil/diagnóstico por imagen , Articulaciones de los Dedos/diagnóstico por imagen , Síndrome de Fibromatosis Hialina/diagnóstico por imagen , Articulación Metacarpofalángica/diagnóstico por imagen , Diagnóstico Diferencial , Humanos , Lactante , Masculino , UltrasonografíaRESUMEN
Paracoccidioidomycosis is a fungal infection endemic to South America. The infection is usually asymptomatic and mostly affects the upper and lower respiratory tracts with clinical-radiological dissociation. Joint involvement is rare with no specific pattern or radiological injury. We report a case of paracoccidioidomycosis in which the patient's initial symptoms were hoarseness and arthritis. After an ultrasound examination, we performed the differential diagnosis of other noninfectious arthropathies and analysis of the material collected, which revealed infection with the fungus Paracoccidioides brasiliensis.
Asunto(s)
Músculo Esquelético/diagnóstico por imagen , Paracoccidioides/aislamiento & purificación , Paracoccidioidomicosis/diagnóstico por imagen , Ultrasonografía/métodos , Diagnóstico Diferencial , Humanos , América del SurRESUMEN
Resumo A paracoccidioidomicose é uma infecção fúngica endêmica na América do Sul. A infecção geralmente é assintomática e afeta principalmente os tratos respiratórios superior e inferior, com dissociação clínico-radiológica. O envolvimento articular é raro, sem um padrão ou lesão radiológica específica. Apresenta-se um relato de caso de paracoccidioidomicose em que os sintomas iniciais do paciente foram rouquidão e artrite. Depois de um exame de ultrassonografia, foram feitos o diagnóstico diferencial de outras artropatias não infecciosas e a análise do material coletado, que revelou infecção pelo fungo Paracoccidioides brasiliensis.
Abstract Paracoccidioidomycosis is a fungal infection endemic to South America. The infection is usually asymptomatic and mostly affects the upper and lower respiratory tracts with clinical–radiological dissociation. Joint involvement is rare with no specific pattern or radiological injury. We report a case of paracoccidioidomycosis in which the patient's initial symptoms were hoarseness and arthritis. After an ultrasound examination, we performed the differential diagnosis of other noninfectious arthropathies and analysis of the material collected, which revealed infection with the fungus Paracoccidioides brasiliensis.