Integrated PET/CT of Pulmonary Neuroendocrine Tumors: Diagnostic and Prognostic Implications
Semin Chong1,
Kyung Soo Lee1,
Byung-Tae Kim2,
Joon Young Choi2,
Chin A Yi1,
Myung Jin Chung1,
Dae-Kun Oh1 and
Ji-Young Lee1
1 Department of Radiology and Center for Imaging Science, Samsung Medical
Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong,
Kangnam-gu, Seoul, South Korea, 135-710.
2 Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan
University School of Medicine, Seoul, South Korea.

View larger version (60K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1A 23-year-old man with typical carcinoid with little
18F-FDG uptake (Table
1, patient 1). Transverse unenhanced CT scan (5-mm section
thickness, 80 mA) obtained through right middle lung zone shows 32-mm central
mass (arrows) occupying right bronchus intermedius. Punctuate
calcifications (arrowheads) are evident.
|
|

View larger version (71K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1B 23-year-old man with typical carcinoid with little
18F-FDG uptake (Table
1, patient 1). and C, FDG PET (B) and integrated
PET/CT (C) scans show little FDG uptake (arrows) within tumor
(maximum standardized uptake value, 3.2)
|
|

View larger version (71K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1C 23-year-old man with typical carcinoid with little
18F-FDG uptake (Table
1, patient 1). FDG PET (B) and integrated PET/CT (C)
scans show little FDG uptake (arrows) within tumor (maximum
standardized uptake value, 3.2)
|
|

View larger version (109K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2A 42-year-old woman with atypical carcinoid with little
18F-FDG uptake (Table
1, patient 7). Transverse unenhanced CT scan (1-mm section
thickness, 180 mA) obtained at level of left inferior pulmonary vein shows
12-mm nodule (arrow) in left lower lobe.
|
|

View larger version (65K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2B 42-year-old woman with atypical carcinoid with little
18F-FDG uptake (Table
1, patient 7). Transverse contrast-enhanced CT scan (5-mm section
thickness, 180 mA) obtained 10-mm superior to A shows enlarged lymph
nodes (arrows) in left hilum.
|
|

View larger version (71K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2C 42-year-old woman with atypical carcinoid with little
18F-FDG uptake (Table
1, patient 7). PET scan obtained at level between A and
B shows little FDG uptake within primary tumor (arrow)
(maximum standardized uptake value, 1.7) and considerable FDG uptake within
left hilar lymph node (arrowhead) (maximum standardized uptake value,
11.2).
|
|

View larger version (76K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 3A 51-year-old man with large cell neuroendocrine carcinoma with high
18F-FDG uptake (Table
1, patient 16). Transverse contrast-enhanced CT scan (5-mm section
thickness, 180 mA) obtained at level of distal left main bronchus shows 45-mm
mass (arrows) encircling apicoposterior segmental bronchus in left
upper lobe.
|
|

View larger version (94K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 3B 51-year-old man with large cell neuroendocrine carcinoma with high
18F-FDG uptake (Table
1, patient 16). Integrated PET/CT scan shows high FDG uptake
within tumor (maximum standardized uptake value, 13.4).
|
|

View larger version (96K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 4A 78-year-old man with small cell lung cancer manifesting as solitary
pulmonary nodule (Table 2,
patient 11). Transverse CT scan (5-mm section thickness, 180 mA) obtained with
lung window at level of aortic arch shows 15-mm nodule (arrow) in
left upper lobe.
|
|

View larger version (86K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 4B 78-year-old man with small cell lung cancer manifesting as solitary
pulmonary nodule (Table 2,
patient 11). Integrated PET/CT scan shows high 18F-FDG uptake
within tumor (arrow) (maximum standardized uptake value, 8.1).
|
|

View larger version (109K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 5A 49-year-old man with rib metastasis from large cell neuroendocrine
carcinoma (Table 1, patient
17). Rib metastasis was detected only with integrated PET/CT.
Contrast-enhanced transverse CT scan (5-mm section thickness, 180 mA) obtained
with mediastinal window at level of distal bronchus intermedius shows
lobulated mass (arrow) in left hilar area with enlarged lymph nodes
(arrowhead) in subcarinal area.
|
|

View larger version (66K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 5B 49-year-old man with rib metastasis from large cell neuroendocrine
carcinoma (Table 1, patient
17). Rib metastasis was detected only with integrated PET/CT. CT scan obtained
at same time as A shows no abnormality in FDG uptake area. Bone scan
(not shown) also did not suggest rib metastasis. Thus patient underwent
follow-up CT examination without tissue confirmation.
|
|

View larger version (59K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 5C 49-year-old man with rib metastasis from large cell neuroendocrine
carcinoma (Table 1, patient
17). Rib metastasis was detected only with integrated PET/CT. Transverse PET
scan obtained at same time as A and B shows increased
18F-FDG uptake (arrow) suggestive of rib metastasis in
posterior arc of left third rib.
|
|

View larger version (88K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 5D 49-year-old man with rib metastasis from large cell neuroendocrine
carcinoma (Table 1, patient
17). Rib metastasis was detected only with integrated PET/CT. Follow-up CT
scan obtained at similar level to and 6 months after B and C
shows bone destruction and soft-tissue lesion (arrows) at previous
FDG uptake area.
|
|

CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati What's this?
Copyright © 2007 by the American Roentgen Ray Society.