Table 2 Incidence rates of EMD in studies of patients with MM.

From: Extramedullary disease in multiple myeloma: a systematic literature review

Reference

No. of patients

Time period covered

Diagnostic approach

Incidence

Montefusco et al. [26]

2322

2010–2018 (across all studies)

Skeletal survey, MRI, or CT; and/or physical examination

NDMM: 0.5%

Gagelmann et al. [28]

3744

2005–2014

NR

NDMM: 3.7%

Deng et al. [18]

834

1993–2013

X-ray, US, CT, physical examination; histologically confirmed where possible

NDMM: 4.8% RRMM: 3.4%

Weinstock et al. [29]

663

2005–2011

Pathological or radiological evidence of EMD at any time following the initial diagnosis of MM

RRMM: 8.3%

Pour et al. [23]

226

2005–2008

US, CT, or MRI

RRMM: 14%

Rasche et al. [21]

357

2007–2010

Cytology, biopsy of clinical/radiological lesions

RRMM: 6.7%

Short et al. [30]

174

2007–2011

PET/CT, MRI

NDMM: 1.7% RRMM: 7.5%

  1. CT computed tomography, MRI magnetic resonance imaging, NR not reported, PET positron emission tomography, US ultrasound.