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  • Title: Hodgkin disease and non-Hodgkin lymphoma: plain chest radiographs and chest computed tomography of thoracic involvement in previously untreated patients.
    Author: Romano M, Libshitz HI.
    Journal: Radiol Med; 1998; 95(1-2):49-53. PubMed ID: 9636727.
    Abstract:
    PURPOSE: To provide further information about the presentation of thoracic involvement in Hodgkin disease and non-Hodgkin lymphoma and to compare chest radiography with chest CT findings. MATERIALS AND METHODS: We reviewed the chest radiographs and the CT images of 100 Hodgkin and 100 non-Hodgkin patients, all of them untreated. Our data were compared with those of literature series: the latest study comparing the different patterns of Hodgkin and non-Hodgkin disease appeared in 1976 and it compared chest radiography with conventional tomography, not with CT. RESULTS: Intrathoracic involvement (75% vs 48%) and adenopathy (74% vs 28%) were more frequent in Hodgkin than in non-Hodgkin lymphoma. Ninety-nine per cent of the patients with intrathoracic involvement (74/75) had nodal disease. Paratracheal/prevascular nodes were most frequently involved, namely in 72/74 Hodgkin (97%) and in 27/28 non-Hodgkin patients (96%). The lung parenchyma was more often involved in non-Hodgkin (24%) than in Hodgkin (8%) patients; it was associated with mediastinal/hilar adenopathy in all Hodgkin and in 10/24 (42%) non-Hodgkin cases. Parenchymal involvement was demonstrated with chest radiography in 7/8 Hodgkin (88%) and in 13/24 non-Hodgkin patients (54%). Chest radiography showed paratracheal/prevascular adenopathy more often in Hodgkin (54/72, 75%) than in non-Hodgkin (15/27, 56%) cases. Subcarinal and internal mammary adenopathy was poorly depicted with plain films, while hilar adenopathy was generally identified with both CT and chest radiography. Chest radiography usually missed posterior mediastinal and anterior diaphragmatic adenopathy. CONCLUSIONS: The differences in the presentation of Hodgkin vs non-Hodgkin disease are not sufficiently distinctive to permit radiographic differentiation of the two conditions, but some patterns are helpful. Recognizing the frequency of thoracic involvement and that of the additional CT findings in Hodgkin and non-Hodgkin patients makes a sound basis for lymphoma imaging.
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