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| The CT manifestations of nodular, mass focal organizing pneumonia |
| WANG Shusheng1 YU Yongmei2 |
1.Department of Radiology, Chizhou People′s Hospital, Anhui Province, Chizhou 247000, China;
2.Central of Radiology, the First Affiliated Hospital of Wannan Medical College, Anhui Province, Wuhu 241001, China |
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Abstract Objective To analyze the CT manifestations of nodular, mass focal organizing pneumonia. Methods The CT manifestations of 21 patients with nodular and mass FOP confirmed by surgery or puncture pathology in Chizhou People's Hospital from January 2013 to February 2018 were retrospectively analyzed. Standardized 64-slice MSCT and three-phase contrast enhanced spiral CT were performed for all cases, with some of the lesions being displayed using MPR. Results In the 21 cases, 12 cases with nodular type and 9 cases of tumor were found. All lesions were located in the field of the lung or close to the pleura, with the lower lobe of the right lung (8 cases) and the upper lobe of the left lung (9 cases) frequent. There were 20 cases of irregular morphology and 1 case of small circle nodules. The edge was clear in 15 cases, fuzzy in 6 cases. There were 4 cases of arcs, 12 cases of pleural thickening adhesion and 3 cases of pleural depression. There were 19 case heterogeneous enhancement (including 8 cases with smooth inner cavity) and 2 cases of uniform enhancement. There were 12 cases of obvious enhancement, 7 cases of moderate enhancement, 2 cases of mild enhancement, and 2 cases of vascular penetration. Conclusion The FOP CT features of nodules and lumps are very complicated, and there is a certain value in diagnosis according to the location, morphology, strengthening mode and multi-plane reconstruction of the lesion.
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