Dermatofibrosarcoma Protuberans
MR Imaging Features
William C. Torreggiani1,
Khalid Al-Ismail1,
Peter L. Munk1,
Savvas Nicolaou1,
John X. O'Connell2 and
Margaret A. Knowling3
1
Department of Radiology, Vancouver General Hospital, University of British
Columbia, 899 W. 12th Ave., Vancouver, B. C., V5Z 1M9 Canada.
2
Department of Pathology, Vancouver General Hospital, University of British
Columbia, Vancouver, B. C., V5Z 1M9 Canada.
3
Department of Oncology, British Columbia Cancer Agency, 600 W. 10th Ave.,
Vancouver, B. C., V5Z 4E6 Canada.
View larger version (113K):
[in a new window]
|
Fig. 1A. —43-year-old woman with 8-cm mass involving lateral aspect of
right thigh. Tumor had grown gradually over many years. Coronal T1-weighted MR
image (TR/TE, 550/16) shows 8-cm mass (arrow) of low signal intensity
that involves vastus lateralis, rectus femoris, and lateral part of vastus
intermedius.
|
|
View larger version (113K):
[in a new window]
|
Fig. 1B. —43-year-old woman with 8-cm mass involving lateral aspect of
right thigh. Tumor had grown gradually over many years. Axial fast spin-echo
T2-weighted MR image (TR/TEeff, 4,000/80) shows mass to have
heterogeneous areas of both intermediate and high signal intensities.
|
|
View larger version (113K):
[in a new window]
|
Fig. 2A. —35-year-old man with unusually deep dermatofibrosarcoma
protuberans. Coronal T1-weighted spin-echo MR image (TR/TE, 800/16) shows 4-cm
well-defined mass of slightly higher signal to muscle deep in right chest wall
protruding between ribs.
|
|
View larger version (122K):
[in a new window]
|
Fig. 2B. —35-year-old man with unusually deep dermatofibrosarcoma
protuberans. Coronal short tau inversion recovery image (2,000/16; inversion
time, 150 msec) shows mass of uniform high signal.
|
|
View larger version (99K):
[in a new window]
|
Fig. 3A. —44-year-old man with recurrent dermatofibrosarcoma of
shoulder. Sagittal T1-weighted spin-echo image (TR/TE, 800/24) shows 3.5-cm
mass (arrow) at site of previous resection. Mass is of slightly
higher signal than that of adjacent muscle and protrudes through skin.
|
|
View larger version (73K):
[in a new window]
|
Fig. 3B. —44-year-old man with recurrent dermatofibrosarcoma of
shoulder. Axial short tau inversion recovery image (4,000/32; inversion time,
150 msec) shows mass of uniform high signal.
|
|
View larger version (106K):
[in a new window]
|
Fig. 4A. —39-year-old woman with anteriorly located superficial mass in
thigh. Axial T1-weighted image (TR/TE, 800/18) shows 4.5-cm well-defined mass
of uniform signal, similar to that of adjacent muscle (straight
arrow). Note two small satellite lesions (curved arrows).
|
|
View larger version (121K):
[in a new window]
|
Fig. 4B. —39-year-old woman with anteriorly located superficial mass in
thigh. Axial fast spin-echo T2-weighted image (TR/TEeff, 6,000/84)
shows principal lesion of intermediate signal, similar to that in adjacent
fat.
|
|
View larger version (113K):
[in a new window]
|
Fig. 5A. —45-year-old man with recurrent dermatofibrosarcoma
protuberans of superficial portion of back. Axial T1-weighted image (TR/TE,
800/16) shows 2.5-cm mass (arrow) of uniform signal, similar to that
in adjacent muscle.
|
|
View larger version (111K):
[in a new window]
|
Fig. 5B. —45-year-old man with recurrent dermatofibrosarcoma
protuberans of superficial portion of back. Axial T1-weighted image (800/16)
after gadolinium infusion shows patchy central enhancement of mass
(arrow).
|
|
View larger version (104K):
[in a new window]
|
Fig. 5C. —45-year-old man with recurrent dermatofibrosarcoma
protuberans of superficial portion of back. Axial short tau inversion recovery
sequence (2,000/16; inversion time, 150 msec) shows well-defined mass of high
signal.
|
|
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
Copyright © 2002 by the American Roentgen Ray Society.
