대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Courtesy

Chonnam National University Hospital

Imaging Findings

Pulmoanry opacity

Solitary, well-delineated soft-tissue mass (M/C)

Multiple unilateral or bilateral nodules

Diffuse infiltrates along the bronchovascular bundles and interlobular septa, and extensive lobar infiltrates mimicking pneumonia (less common)

Associated findings

With air bronchograms (50%)

Pleural effusion (10%)

Nodal involvement (30%)

Discussion

m.c primary pulmonary lymphoma

Bronchus-associated lymphoid tissue (BALT)

Slow-growing neoplasm on basis of apparently benign clinicopathologic features



Age: 25-85 years (mean: 55-60)

Treatment: local surgical excision

Recurrence: 10-15%

Clinical Findings

Asymptomatic: 40-50% (incidentally detected)

Cough, dyspnea

Fever, night sweat, wt. loss; 20-40%


Pathologic Findings
Gross: nonnecrotic, whitish masses with infiltrative and nondestructive growth and preservation of the lung architecture

Microscopy: typical lymphoepithelial pattern

Reference

m.c primary pulmonary lymphoma

Bronchus-associated lymphoid tissue (BALT)

Slow-growing neoplasm on basis of apparently benign clinicopathologic features



Age: 25-85 years (mean: 55-60)

Treatment: local surgical excision

Recurrence: 10-15%

Clinical Findings

Asymptomatic: 40-50% (incidentally detected)

Cough, dyspnea

Fever, night sweat, wt. loss; 20-40%


Pathologic Findings
Gross: nonnecrotic, whitish masses with infiltrative and nondestructive growth and preservation of the lung architecture

Microscopy: typical lymphoepithelial pattern

Keywords

Lung, Malignant tumor, Lymphoma, Pulmonary B-cell lymphoma of BALT