Imaging features of telangiectatic osteosarcoma
10.13929/j.issn.1672-8475.2025.09.007
- VernacularTitle:毛细血管扩张型骨肉瘤影像学表现
- Author:
Chuanxi HAO
1
;
Kunkun SUN
;
Nan HONG
;
Dongxu JI
Author Information
1. 北京大学人民医院放射科,北京 100044
- Publication Type:Journal Article
- Keywords:
osteosarcoma;
tomography,X-ray computed;
magnetic resonance imaging
- From:
Chinese Journal of Interventional Imaging and Therapy
2025;22(9):589-593
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore imaging features of telangiectatic osteosarcoma(TOS).Methods X-ray,CT and MRI data of 37 cases of TOS confirmed by surgical pathology were retrospectively analyzed.Lesion's location,morphology,border,density/signal,enhancement pattern,presence of hemorrhage,tumor bone,fluid-fluid levels,periosteal reaction,septal nodules,epiphyseal involvement,bone destruction and surrounding sclerosis,peripheral edema and pathological fracture or not were recorded.The misdiagnosis rate of each imaging examination was calculated.Results TOS was prone to occur in the femur,humerus and tibia metaphysis,predominantly presented as eccentric,expansive and map-like osteolytic bone destruction with little or no surrounding sclerosis,showing polycystic changes,with fluid-fluid levels,hemorrhagic and tumor bone,along with periosteal reactions and marginal and septal nodule-like enhancement after enhanced scanning.The misdiagnosis rate of X-ray,non-contrast CT,enhanced CT,non-contrast MRI,enhanced MRI and preoperative biopsy for diagnosing TOS was 75.00%(24/32),50.00%(3/6),38.10%(8/21),50.00%(6/12),24.32%(9/37)and 24.32%(9/37),respectively.Conclusion TOS had certain characteristic imaging manifestations.Comprehensive imaging examinations combined with accurate pathological sampling contributed to precise diagnosis and reduction of misdiagnosis rate of TOS.
