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Pulmonary Thromboembolism in Patients with Malignancy
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(Park Gyeong-Cheon) - Yeungnam University College of Medicine Department of Radiology
ÀÌÀç±³(Lee Jae-Kyo) - Yeungnam University College of Medicine Department of Radiology
Abstract
Purpose: We evaluated the CT findings of pulmonary thromboembolism (PTE) in patients with malignancy and compared these findings with the control group who had PTE without malignancy.
Materials and Methods: During the last 5 years, 490 patients had PTE on CT examination. We classified the patients into two groups based on the presence and absence of malignancy. Among the included participants, 155 patients had malignancy and 335 patients did not have malignancy. The clinical and laboratory findings were reviewed. We analysed the CT findings for the level of the involved vessel, pulmonary embolism (PE) index, and association with deep vein thrombosis (DVT) on the leg. Differences were reviewed retrospectively. The most common primary malignancy was in the lung.
Results: In the group with malignancy (155), 50 patient (32.3%) presented symptoms for PTE. The level of involved vessels were the main (15, 9.7%), below lobar (91, 58.7%), and below segmental (49, 31.6%). The PE index was 18.1 ¡¾ 14.75, and 27 patients (42.2%) had DVT. In the control group (335), 216 patients (64.5%) presented symptoms for PTE. The level of the involved vessels were the main (75, 22.4%), below lobar (163, 48.6%), and below segmental (97, 29%). The PE index was 23.55 ¡¾ 18.025, and 98 patient (41.4%) had DVT. The comparisons of the findings showed significant differences (p = 0.01) except for DVT.
Conclusion: More periphery of the involved vessels and the lower PE index are the features of PTE in patients with malignancy compared to the control group. The patient group had high incidence of unsuspected PTE than the control group, so special attention must be paid to this group.
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Pulmonary Thromboembolism, Pulmonary Embolism, Malignancy, Neoplasm, Computed Tomography
KMID :
1103720140710010014
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