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A Case of Posterior Mediastinal Plasmacytoma Confounded by Community-Acquired Pneumonia.

Heo D, Boo KY, Jwa H, Lee HY, Kim J, Kim ST, Seo HM, Han SH, Maeng YH, Lee JH - Tuberc Respir Dis (Seoul) (2015)

Bottom Line: A 67-year-old man recovered after antibiotic treatment for community-acquired pneumonia.Follow-up chest computed tomography (CT) revealed an increase in the extent of the right posterior mediastinal mass that we had considered to be pneumonic consolidations on previous CT scans.Through percutaneous needle biopsy, we diagnosed IgG kappa type extramedullary plasmacytoma of the posterior mediastinum.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea.

ABSTRACT
Plasmacytomas are extramedullary accumulations of plasma cells originating from soft tissue. Mediastinal plasmacytoma is a rare presentation. A 67-year-old man recovered after antibiotic treatment for community-acquired pneumonia. However, on convalescent chest radiography after 3 months, mass like lesion at the right lower lung field was newly detected. Follow-up chest computed tomography (CT) revealed an increase in the extent of the right posterior mediastinal mass that we had considered to be pneumonic consolidations on previous CT scans. Through percutaneous needle biopsy, we diagnosed IgG kappa type extramedullary plasmacytoma of the posterior mediastinum.

No MeSH data available.


Related in: MedlinePlus

(A, B) Contrast-enhanced computed tomography (CT) scan images of the chest after treatment of pneumonia. Chest CT scan revealing oval and elongated mass (arrow) with mild enhancement of soft tissue density without any bone destruction.
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Figure 3: (A, B) Contrast-enhanced computed tomography (CT) scan images of the chest after treatment of pneumonia. Chest CT scan revealing oval and elongated mass (arrow) with mild enhancement of soft tissue density without any bone destruction.

Mentions: After three months, we performed a routine check-up of the patient. The patient had no definitive symptoms. Follow-up chest radiography showed resolution of multiple pulmonary consolidations throughout most of the lung fields, but a mass-like lesion without the loss of right cardiac borders at the right lower lobe field was observed (Figure 1B). Follow-up CT scans of the chest revealed interval improvements in pneumonic consolidations in both lower lung fields, but an increased mass in the right posterior mediastinum at T6-7 level that we had considered to be pneumonic consolidations on the previous CT scans was visible (Figure 2C, D). This oval and elongated mass with mild enhancement of soft tissue density without any bone destruction was observed (Figure 3A, B). Positron emission tomography using 2-[fluorine-18] fluoro-2-deoxy-D-glucose (FDG) imaging and CT scans of the whole body except the brain revealed mild FDG uptake of maximum standardized uptake value 3.4 at the posterior mediastinal mass.


A Case of Posterior Mediastinal Plasmacytoma Confounded by Community-Acquired Pneumonia.

Heo D, Boo KY, Jwa H, Lee HY, Kim J, Kim ST, Seo HM, Han SH, Maeng YH, Lee JH - Tuberc Respir Dis (Seoul) (2015)

(A, B) Contrast-enhanced computed tomography (CT) scan images of the chest after treatment of pneumonia. Chest CT scan revealing oval and elongated mass (arrow) with mild enhancement of soft tissue density without any bone destruction.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4499596&req=5

Figure 3: (A, B) Contrast-enhanced computed tomography (CT) scan images of the chest after treatment of pneumonia. Chest CT scan revealing oval and elongated mass (arrow) with mild enhancement of soft tissue density without any bone destruction.
Mentions: After three months, we performed a routine check-up of the patient. The patient had no definitive symptoms. Follow-up chest radiography showed resolution of multiple pulmonary consolidations throughout most of the lung fields, but a mass-like lesion without the loss of right cardiac borders at the right lower lobe field was observed (Figure 1B). Follow-up CT scans of the chest revealed interval improvements in pneumonic consolidations in both lower lung fields, but an increased mass in the right posterior mediastinum at T6-7 level that we had considered to be pneumonic consolidations on the previous CT scans was visible (Figure 2C, D). This oval and elongated mass with mild enhancement of soft tissue density without any bone destruction was observed (Figure 3A, B). Positron emission tomography using 2-[fluorine-18] fluoro-2-deoxy-D-glucose (FDG) imaging and CT scans of the whole body except the brain revealed mild FDG uptake of maximum standardized uptake value 3.4 at the posterior mediastinal mass.

Bottom Line: A 67-year-old man recovered after antibiotic treatment for community-acquired pneumonia.Follow-up chest computed tomography (CT) revealed an increase in the extent of the right posterior mediastinal mass that we had considered to be pneumonic consolidations on previous CT scans.Through percutaneous needle biopsy, we diagnosed IgG kappa type extramedullary plasmacytoma of the posterior mediastinum.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea.

ABSTRACT
Plasmacytomas are extramedullary accumulations of plasma cells originating from soft tissue. Mediastinal plasmacytoma is a rare presentation. A 67-year-old man recovered after antibiotic treatment for community-acquired pneumonia. However, on convalescent chest radiography after 3 months, mass like lesion at the right lower lung field was newly detected. Follow-up chest computed tomography (CT) revealed an increase in the extent of the right posterior mediastinal mass that we had considered to be pneumonic consolidations on previous CT scans. Through percutaneous needle biopsy, we diagnosed IgG kappa type extramedullary plasmacytoma of the posterior mediastinum.

No MeSH data available.


Related in: MedlinePlus