A comparison of idiopathic pulmonary fibrosis and chronic hypersensitivity pneumonia in terms of anterior mediastinal fat properties

Authors : Sertan BULUT, Deniz ÇELİK, Hakan ERTÜRK, Harun KARAMANLI, Mustafa Engin ŞAHİN, Özlem SÖNMEZ, Çiğdem BİBER

Pages : 262-268

Doi:10.32322/jhsm.1017712

View : 14 | Download : 11

Publication Date : 2022-01-17

Article Type : Research Paper

Abstract :Aim: The shape and physical properties of the anterior mediastinum can be easily affected by inflammatory lung diseases, tuberculosis, empyema, radiotherapy, chronic fibrotic lung diseases, previous surgery, and after steroid therapy. We planned to compare the properties of anterior mediastinal fat insert ignore into journalissuearticles values(AMF); in 3 different groups: patients with idiopathic pulmonary fibrosis insert ignore into journalissuearticles values(IPF);, patients with chronic hypersensitivity pneumonia insert ignore into journalissuearticles values(cHP);, and in the healthy control group. We investigate the AMF shape, dimensions, and AMF area properties on the images of high-resolution computed tomography insert ignore into journalissuearticles values(HRCT); and to find any difference between IPF and cHP patients in terms of AMF. Material and Method: The study comprises a total of 80 cases in the three groups. The first group comprises 26 cases diagnosed as IPF. The second group comprises 19 cases diagnosed as cHP. The third group comprises 35 control patients. The clinical, demographical, and AMF characteristics on HRCT were retrospectively evaluated. The AMF shape and area characteristics were compared between the three groups. Results: There was no statistical difference between the mean ages of cases, BMIs, and smoking status in IPF, cHP, and control groups. Gender distribution was found statistically significant between the 3 groups insert ignore into journalissuearticles values(p=0.001);. A statistically significant difference was observed between the IPF and cHP groups in terms of FVC levels insert ignore into journalissuearticles values(2.67±0.59, 2.14±0.80, respectively; p=0.024);. Also, a statistically significant difference was observed between the IPF and cHP groups in terms of DLCO levels insert ignore into journalissuearticles values(57.42±17.21; 77.31±35.21; respectively; p=0.016);. In the evaluation of AMF shape properties between two groups insert ignore into journalissuearticles values(cHP and IPF);, the concave figure was significantly more frequent in cHP group insert ignore into journalissuearticles values(p=0.014);. The AMF area analyses revealed that the IPF group’s areas were significantly greater than the cHP and control group’s. The AP dimension of AMF analyses revealed that only the cHP group’s dimensions were significantly smaller than the control group’s insert ignore into journalissuearticles values(p=0.037);. In the analysis of the transverse dimension of AMF, the IPF group’s dimensions were significantly greater than the cHP and control group’s insert ignore into journalissuearticles values(p<0.0001 and p=0.007; respectively); and also the cHP group’s dimensions were significantly greater than the control group’s insert ignore into journalissuearticles values(p<0.0001);. Conclusion: The transverse length, total AMF area, and shape characteristics of AMF can be evaluated as a radiological marker for differential diagnosis of IPF and cHP, whose differential diagnosis may be difficult. Both the transverse length and AMF area can take greater values in the IPF group than in the cHP group.
Keywords : idiopathic pulmonary fibrosis, chronic hypersensitivity pneumonia, anterior mediastinal fat