0000000000755084
AUTHOR
Morie A. Gertz
Asymptomatic immunoglobulin light chain amyloidosis (AL) at the time of diagnostic bone marrow biopsy in newly diagnosed patients with multiple myeloma and smoldering myeloma. A series of 144 cases and a review of the literature
The rate of asymptomatic amyloidosis (AL) among patients with newly diagnosed multiple myeloma (MM) or smoldering multiple myeloma (SMM) is unknown. We evaluated number and clinical significance of asymptomatic AL in consecutive MM and SMM patients, not having recognition of symptomatic AL at the time of their diagnostic bone marrow biopsy. Bone marrow biopsies were stained with Congo red and considered diagnostic for AL in case of positive Congo red staining with apple-green birefringence. Biopsies from 144 patients were evaluated: 77 had a diagnosis of MM and 67 of SMM. The median age was 59 (range 26–84) years; the median follow-up was 76 months (range 0–216). Immunoglobulin isotypes wer…
Asymptomatic Amyloidosis at the Time of Diagnostic Bone Marrow Biopsy in Newly Diagnosed Patients with Multiple Myeloma and Smoldering Multiple Myeloma.
Abstract Abstract 2803 Poster Board II-779 Background. The rate of asymptomatic amyloidosis (asym-amyloidosis) detected in patients with newly diagnosed multiple myeloma (MM) or smoldering multiple myeloma (SMM) is unknown. This topic is significant because unrecognized AL may be associated with increased mortality may change the patient's management. The objective of the present investigation was to evaluate the number and clinical significance of asym-amyloidosis in MM and SM patients at the time of the diagnostic bone marrow (BM) biopsy for MM. Materials and Methods. The study population was selected from the Mayo Clinic Dysproteinemia database and consisted of consecutive patients with …
Role of Cardiac Magnetic Resonance Imaging in the Detection of Cardiac Amyloidosis
Objectives Our aim was to evaluate the role and mechanism of late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) in identifying cardiac amyloidosis (CA) and to investigate associations between LGE and clinical, morphologic, functional, and biochemical features. Background CA can be challenging to diagnose by echocardiography. Recent studies have demonstrated an emerging role for LGE-CMR. Methods LGE-CMR was performed in 120 patients with amyloidosis. Cardiac histology was available in 35 patients. The remaining 85 patients were divided into those with and without echocardiographic evidence of CA. Results Of the 35 patients with histologically verified CA, abnormal LGE was pre…