AJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by O'Connor, A. R.
Right arrow Articles by Whittaker, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by O'Connor, A. R.
Right arrow Articles by Whittaker, C.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Hotlight (NEW!)
Right arrow
What's Hotlight?

Radiologic Findings that Mimic Malignancy

Angus R. O'Connor1 and Charlotte Whittaker1

1 All authors: Department of Radiology, Nottingham City Hospital, Hucknall Rd., Nottingham, UK NG5 1PB.


Figure 1
View larger version (88K):

[in a new window]
  		Fig. 1A —45-year-old man 3 months after radical orchidectomy for malignant testicular tumor. Axial CT examination images are shown. Inhomogeneous soft-tissue density (arrow) anterior to right external iliac vessels is noted. Sections above and below show normal-diameter vas deferens. This was caused by hematoma of spermatic cord.

 

Figure 2
View larger version (90K):

[in a new window]
  		Fig. 1B —45-year-old man 3 months after radical orchidectomy for malignant testicular tumor. Axial CT examination images are shown. Follow-up examination 3 months later shows resolution of hematoma.

 

Figure 3
View larger version (120K):

[in a new window]
  		Fig. 2A —60-year-old man with low-grade lymphoma. Surveillance CT examination images are shown. Lowest section of study shows oval density in left groin (arrow), which was initially thought to represent lymph node.

 

Figure 4
View larger version (129K):

[in a new window]
  		Fig. 2B —60-year-old man with low-grade lymphoma. Surveillance CT examination images are shown. Sonography examination shows hypoechoic oval density, which was easily compressible and showed vascular connection with femoral vein (arrow). Appearances are in keeping with varicosity. Patient had undergone varicose vein surgery several years previously.

 

Figure 5
View larger version (112K):

[in a new window]
  		Fig. 3 —56-year-old man after anterior resection of colorectal neoplasm. Well-defined, homogeneous soft-tissue mass (arrow) is seen in presacral space, which remained stable on follow-up imaging. Appearances are in keeping with fibrotic postoperative change. Density to right of rectum is redundant bowel loop (L).

 

Figure 6
View larger version (151K):

[in a new window]
  		Fig. 4 —34-year-old man complaining of painless lump. Transverse sonogram through right testicle shows sharply defined mass with echogenic border and acoustic shadowing. Appearances are those of epidermoid cyst.

 

Figure 7
View larger version (111K):

[in a new window]
  		Fig. 5A —60-year-old man with preoperative CT scan obtained before spinal decompression for liposarcoma metastatic to thoracic spine. Iliac bone graft site. Right ilium is unremarkable.

 

Figure 8
View larger version (113K):

[in a new window]
  		Fig. 5B —60-year-old man with preoperative CT scan obtained before spinal decompression for liposarcoma metastatic to thoracic spine. Postoperative imaging shows bone defect in posterior right ilium with overlying linear high attenuation in subcutaneous fat. This was initially interpreted as new metastatic deposit but was actually donor site of bone graft.

 

Figure 9
View larger version (125K):

[in a new window]
  		Fig. 6A —83-year-old woman complaining of diffuse pelvic pain after fall. Pelvic radiographs are shown. Destructive lesion is seen in body of right pubis with preserved cortex at symphysis. Sacral and rib fractures were seen on bone scintigram (not shown). Because no clinical features were seen to suggest systemic malignancy or infection, lesion was observed.

 

Figure 10
View larger version (133K):

[in a new window]
  		Fig. 6B —83-year-old woman complaining of diffuse pelvic pain after fall. Pelvic radiographs are shown. Follow-up radiography 2 months later shows sclerosis of lesion. Patient's symptoms had resolved. Appearances are in keeping with pubic osteolysis.

 

Figure 11
View larger version (113K):

[in a new window]
  		Fig. 7A —Classic and atypical patterns of sacral insufficiency fracture. 83-year-old woman with classical appearances of sacral insufficiency fracture at bone scintigraphy. Squat view shows bilateral bands of increased activity (fractures) in sacral alae, joined through further transverse fracture ("Honda" sign).

 

Figure 12
View larger version (93K):

[in a new window]
  		Fig. 7B —Classic and atypical patterns of sacral insufficiency fracture. Bone scintigraphy, posterior view, in 70-year-old man previously treated for prostate cancer with radical radiation therapy and antiandrogen medication. Diffusely increased activity is seen in right sacroiliac region with focus of markedly increased activity at lower right sacral ala (arrow).

 

Figure 13
View larger version (120K):

[in a new window]
  		Fig. 7C —Classic and atypical patterns of sacral insufficiency fracture. Coronal T1-weighted MRI in same patient as B shows subtle linear low-signal band (arrow) medial to sacroiliac joint in keeping with stress fracture.

 

Figure 14
View larger version (122K):

[in a new window]
  		Fig. 8A —28-year-old woman previously treated with radiation therapy for synovial sarcoma in region of right iliac wing. Bone scintigraphy images are shown. Posterior view shows diffuse photopenia from radiation therapy effect in right iliac region altering usually symmetric distribution of radionuclide in pelvis. Normal activity in left sacroiliac region should not be mistaken for metastatic deposit or stress fracture.

 

Figure 15
View larger version (121K):

[in a new window]
  		Fig. 8B —28-year-old woman previously treated with radiation therapy for synovial sarcoma in region of right iliac wing. Bone scintigraphy images are shown. Anterior view confirms diffuse reduction in activity throughout right ilium with preserved anatomic contours.

 

Figure 16
View larger version (128K):

[in a new window]
  		Fig. 9A —76-year-old woman under investigation because of abnormal liver function test results. Transverse sonogram of liver shows 16-mm target lesion in right lobe (arrow). Note background parenchymal echogenicity in keeping with fatty infiltration.

 

Figure 17
View larger version (118K):

[in a new window]
  		Fig. 9B —76-year-old woman under investigation because of abnormal liver function test results. Portal venous phase CT shows no obvious lesion. Cluster of vessels (arrow) is seen in right lobe of liver.

 

Figure 18
View larger version (114K):

[in a new window]
  		Fig. 9C —76-year-old woman under investigation because of abnormal liver function test results. Delayed imaging shows homogeneous filling in of lesion, in keeping with hemangioma.

 

Figure 19
View larger version (108K):

[in a new window]
  		Fig. 10A —Atypical appearances of cysterna chyli. 79-year-old woman with carcinoma of vulva who underwent staging CT scan. Round water density lesion (arrow) is seen posterior to right crus at T11. No iliac or paraaortic lymphadenopathy was seen, and lesion was unchanged on follow-up study. Appearances are of prominent cisterna chyli.

 

Figure 20
View larger version (117K):

[in a new window]
  		Fig. 10B —Atypical appearances of cysterna chyli. 44-year-old woman with colorectal carcinoma. Well-defined left retrocrural density of water attenuation (arrow) is noted, which remained unchanged on CT examination. Appearances are of left-sided cysterna chyli.

 

Figure 21
View larger version (40K):

[in a new window]
  		Fig. 11 —31-year-old woman in whom coronal whole-body FDG PET examination shows symmetrically increased uptake in supraclavicular regions (white arrows), in keeping with activity in brown fat. Increased uptake is also seen in mediastinum (black arrow). This corresponded with areas of mediastinal adipose tissue on coregistered CT images (not shown), again in keeping with brown fat rather than lymphadenopathy. (Courtesy of B. Franc, University of California, San Francisco, CA)

 

Figure 22
View larger version (97K):

[in a new window]
  		Fig. 12A —76-year-old man with CT of thorax performed 6 months after radical gastrectomy for carcinoma of stomach. Well-defined mass is seen in left lung posteriorly, closely related to oblique fissure (arrow). Appearances are in keeping with encysted effusion. Note right pleural effusion.

 

Figure 23
View larger version (89K):

[in a new window]
  		Fig. 12B —76-year-old man with CT of thorax performed 6 months after radical gastrectomy for carcinoma of stomach. After treatment for heart failure, CT image shows lungs are now clear.

 

Figure 24
View larger version (122K):

[in a new window]
  		Fig. 13A —40-year-old man complaining of painless neck lump, which was shown to be carotid body tumor. Axial unenhanced T1-weighted MR image of lower neck shows soft-tissue mass (arrow), isointense with muscle, which splays surrounding vessels.

 

Figure 25
View larger version (85K):

[in a new window]
  		Fig. 13B —40-year-old man complaining of painless neck lump, which was shown to be carotid body tumor. Enhanced sagittal T1-weighted image shows marked enhancement. Characteristic site of origin of this tumor (arrow) at carotid bifurcation is clearly shown.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2006 by the American Roentgen Ray Society.