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Lung cancer and schwannoma--the pitfalls of positron emission tomography.

Westphal FL, Lima LC, Lima-Netto JC, Tavares Mde A, Gil Fde S - J Bras Pneumol (2014 May-Jun)

View Article: PubMed Central - PubMed

Affiliation: Teaching and Research Center, GetĂșlio Vargas University Hospital, School of Medicine, Federal University of Amazonas, Manaus, Brazil.

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differentiated squamous cell carcinoma... Blood and kidney function test results were normal, A PET scan showed a solid, lobulated paramediastinal lesion in the right upper lobe... differentiation... Analysis of the nodule in the superior mediastinum revealed, instead of Although schwannomas commonly affect the mediastinum, they can be found in the abdomen, in the pelvis, and, much more rarely, in the chest wall... metastatic lesions in the entire body... Commonly, PET-CT is more effective than chest CT for traditional methods in 5-20% of patients; in addition, PET-CT can influence the treatment Although the degree of regional lymph node involvement in our patient was differentiate between schwannomas and other tumors by means of images alone-PET findings in patients with lung masses should be interpreted carefully, as should lymph nodes with high SUV, which should be biopsied, in order to avoid an incorrect diagnosis or incorrect staging and the hazardous consequences of false-positive results.

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In A, posteroanterior chest X-ray showing a radiopaque triangular image in theright upper lobe determining cranial, fissural, and hilar retraction, suggestiveof atelectasis. In B, coronal proton emission tomography and CT fusion images oftwo oval nodes with increased radiotracer uptake. One of the images represents aright upper lobe paramediastinal mass, which occluded the right upper lobebronchus and therefore caused atelectasis. The other image represents a lesion inthe right paratracheal lymph node station. Although the image was suggestive oflymph node enlargement, histopathological examination revealed aschwannoma.
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f01: In A, posteroanterior chest X-ray showing a radiopaque triangular image in theright upper lobe determining cranial, fissural, and hilar retraction, suggestiveof atelectasis. In B, coronal proton emission tomography and CT fusion images oftwo oval nodes with increased radiotracer uptake. One of the images represents aright upper lobe paramediastinal mass, which occluded the right upper lobebronchus and therefore caused atelectasis. The other image represents a lesion inthe right paratracheal lymph node station. Although the image was suggestive oflymph node enlargement, histopathological examination revealed aschwannoma.

Mentions: We report the case of a 61-year-old male patient who, in October of 2011, presented to ouremergency room with airway infection. A chest X-ray revealed right upper lobe atelectasis,which was confirmed by chest CT (Figure 1A).


Lung cancer and schwannoma--the pitfalls of positron emission tomography.

Westphal FL, Lima LC, Lima-Netto JC, Tavares Mde A, Gil Fde S - J Bras Pneumol (2014 May-Jun)

In A, posteroanterior chest X-ray showing a radiopaque triangular image in theright upper lobe determining cranial, fissural, and hilar retraction, suggestiveof atelectasis. In B, coronal proton emission tomography and CT fusion images oftwo oval nodes with increased radiotracer uptake. One of the images represents aright upper lobe paramediastinal mass, which occluded the right upper lobebronchus and therefore caused atelectasis. The other image represents a lesion inthe right paratracheal lymph node station. Although the image was suggestive oflymph node enlargement, histopathological examination revealed aschwannoma.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109205&req=5

f01: In A, posteroanterior chest X-ray showing a radiopaque triangular image in theright upper lobe determining cranial, fissural, and hilar retraction, suggestiveof atelectasis. In B, coronal proton emission tomography and CT fusion images oftwo oval nodes with increased radiotracer uptake. One of the images represents aright upper lobe paramediastinal mass, which occluded the right upper lobebronchus and therefore caused atelectasis. The other image represents a lesion inthe right paratracheal lymph node station. Although the image was suggestive oflymph node enlargement, histopathological examination revealed aschwannoma.
Mentions: We report the case of a 61-year-old male patient who, in October of 2011, presented to ouremergency room with airway infection. A chest X-ray revealed right upper lobe atelectasis,which was confirmed by chest CT (Figure 1A).

View Article: PubMed Central - PubMed

Affiliation: Teaching and Research Center, GetĂșlio Vargas University Hospital, School of Medicine, Federal University of Amazonas, Manaus, Brazil.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

differentiated squamous cell carcinoma... Blood and kidney function test results were normal, A PET scan showed a solid, lobulated paramediastinal lesion in the right upper lobe... differentiation... Analysis of the nodule in the superior mediastinum revealed, instead of Although schwannomas commonly affect the mediastinum, they can be found in the abdomen, in the pelvis, and, much more rarely, in the chest wall... metastatic lesions in the entire body... Commonly, PET-CT is more effective than chest CT for traditional methods in 5-20% of patients; in addition, PET-CT can influence the treatment Although the degree of regional lymph node involvement in our patient was differentiate between schwannomas and other tumors by means of images alone-PET findings in patients with lung masses should be interpreted carefully, as should lymph nodes with high SUV, which should be biopsied, in order to avoid an incorrect diagnosis or incorrect staging and the hazardous consequences of false-positive results.

Show MeSH
Related in: MedlinePlus