[Use of echography for the diagnosis of joint amyloidosis in dialyzed patients].
Amyloid arthropathy is an important complication of long-term hemodialysis. This condition may lead to destructive bone lesions and to severe functional impairment. We studied with sonography of both knees 32 long-term dialysis patients (mean dialytic age: 69.7 months), whose 7 were carrying palpable joint swellings. In 29/32 patients, ultrasound scans were associated with knee X-rays films, patellar views included. In one case, opaque arthrography was performed too. Sonography demonstrated the presence of fluid collections within the articular space and the synovial cavities in 19/32 patients (59%). Their content was transonic or mildly hypoechoic. X-ray films were positive for amyloid bone involvement in 19/29 cases (66%), with intra-osseous cysts and cortical erosions. There was a good general agreement between the results obtained with the two techniques: therefore, in some cases only one examination was positive. Sonography is proposed, in association with standard X-ray films, as a simple and reliable method for the diagnosis of articular amyloidosis in dialysis patients and for the follow-up of this disease.
Nessi
R
R
Servizio di Nefrologia e Dialisi, Università di Milano, Italia.
Anelli
A
A
Brancaccio
D
D
Raiteri
R
R
Chiara Bossi
M
M
Uslenghi
C
C
D000686:Amyloidosis / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D007719:Knee Joint; D011859:Radiography; D006435:Renal Dialysis / Q000009:adverse effects*; D014463:Ultrasonography