Thymic Enlargement and FDG Uptake in Three Patients: CT and FDG Positron Emission Tomography Correlated with Pathology
Conrad Wittram1,
Allan J. Fischman1,
Eugene Mark2,
Jane Ko3 and
Jo-Anne O. Shepard1
1 Department of Radiology, Massachusetts General Hospital and Harvard
University, 55 Fruit St., Boston, MA 02114.
2 Department of Pathology, Massachusetts General Hospital and Harvard
University, Boston, MA 02114.
3 Department of Radiology, Thoracic Imaging, New York University, 560 1st Ave.,
New York, NY 10016.

View larger version (110K):
[in a new window]
|
Fig. 1A. Thymic enlargement in 29-year-old woman. Contrast-enhanced CT
scan of thorax obtained at level of left brachiocephalic vein shows soft
tissue (arrow) among left brachiocephalic vein anteriorly, superior
vena cava laterally, and right brachiocephalic artery and left common carotid
artery posteriorly.
|
|

View larger version (113K):
[in a new window]
|
Fig. 1B. Thymic enlargement in 29-year-old woman. Axial FDG positron
emission tomography (PET) scan obtained at same level as A shows
increase in uptake of FDG in soft tissue (arrows) compared with
mediastinum.
|
|

View larger version (105K):
[in a new window]
|
Fig. 1C. Thymic enlargement in 29-year-old woman. Contrast-enhanced CT
scan obtained at level of aortic arch shows thickness of thymus to be 1.5 cm.
Note convex lateral margin.
|
|

View larger version (113K):
[in a new window]
|
Fig. 1D. Thymic enlargement in 29-year-old woman. Axial FDG PET scan
obtained at same level as C shows increase in uptake of FDG in thymus
(arrow).
|
|

View larger version (101K):
[in a new window]
|
Fig. 2A. Thymic enlargement in 44-year-old woman with history of
malignant melanoma. Contrast-enhanced CT scan of thorax obtained at level of
carina shows soft tissue in region of thymus. Left lobe of thymus measures 1.7
cm in thickness and has slight convex lateral margin.
|
|

View larger version (90K):
[in a new window]
|
Fig. 2B. Thymic enlargement in 44-year-old woman with history of
malignant melanoma. Axial FDG positron emission tomography scan obtained at
same level as A shows increase in uptake of FDG in thymus
(arrows).
|
|

View larger version (136K):
[in a new window]
|
Fig. 3A. Thymic enlargement in 32-year-old woman with history of
breast cancer. Contrast-enhanced CT scan of thorax obtained at level of aortic
arch shows soft tissue in region of thymus. Left and right lobes of thymus
measure 2.1 cm and 1 cm in thickness, respectively, and have convex lateral
margins. Note left breast mass.
|
|

View larger version (87K):
[in a new window]
|
Fig. 3B. Thymic enlargement in 32-year-old woman with history of
breast cancer. Axial FDG positron emission tomography scan shows increase in
uptake of FDG in thymus.
|
|

CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati What's this?
Copyright © 2003 by the American Roentgen Ray Society.