Spectrum of Imaging Findings in Abdominal Extraosseous Myeloma
Michael Patlas1,2,
Korosh Khalili1,3,
Marcus J. Dill-Macky1 and
Stephanie R. Wilson1
1 Department of Medical Imaging, University Health Network and Mount Sinai
Hospital, 200 Elizabeth St., Toronto, ON M5G 2C4, Canada.
2 Present address: Department of Radiology, Hamilton General Hospital, Hamilton,
ON L8L 2X2, Canada.
3 Department of Medical Imaging, Princess Margaret Hospital, University Health
Network, 3-964, 610 University Ave., Toronto, ON M5G 2M9, Canada.

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Fig. 1A. 48-year-old man with multiorgan involvement by multiple
myeloma. Sonogram shows hypoechoic liver lesion adjacent to middle hepatic
vein.
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Fig. 1B. 48-year-old man with multiorgan involvement by multiple
myeloma. Sonogram shows heterogeneous solid tumor (arrowheads) in
perirenal space displacing right kidney (asterisk).
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Fig. 1C. 48-year-old man with multiorgan involvement by multiple
myeloma. Unenhanced CT scan, which corresponds to B, shows bilateral
solid masses (arrowheads) in perirenal space with mass effect on
kidneys (asterisks).
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Fig. 2. 60-year-old man with multiple myeloma. Unenhanced CT scan
depicts left-sided perirenal and perihilar masses (arrowheads) that
are causing mild pelvocaliectasis. Multiple metastatic tumor nodules
(arrow) are visible in retroperitoneum.
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Fig. 3. 40-year-old man with multiple myeloma. Scrotal sonogram shows
multiple bilateral hypoechoic myelomatous masses in testes.
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Fig. 4. 41-year-old man with multiple myeloma. Enhanced CT scan shows
large single myelomatous mass in head of pancreas causing mild dilatation of
pancreatic duct. Pancreas was only site of disease.
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Fig. 5. 48-year-old man with multiple myeloma. Enhanced CT scan shows
diffuse myelomatous infiltration of stomach causing gastric wall thickening
(arrowheads). Spontaneous perforation of stomach (asterisk)
was confirmed at surgery.
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Fig. 6A. 52-year-old man with peritoneal extraosseous multiple
myeloma. CT scan shows multiple enhancing soft-tissue nodules
(arrowheads) in peritoneal spaces outlined by ascites. Note studding
on gallbladder surface and also retroperitoneal tumor deposit by left
kidney.
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Fig. 6B. 52-year-old man with peritoneal extraosseous multiple
myeloma. CT scan shows tumor deposits at omentum and right paracolic gutter
(arrowheads) and at subcutaneous tissues of anterior abdominal wall
(arrow).
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Copyright © 2004 by the American Roentgen Ray Society.