18 F-FDG PET/CT imaging of periosteal osteosarcoma of the mandible:one case report
LI Shujuan
WANG Chun
LUO Dan
JIANG Jie
Abstract：Periosteal osteosarcoma is a moderately malignant chondroblastic osteosarcoma originating from the surface connec-tive tissue or periosteum of bone,also referred to as parosteal chondroblastic osteosarcoma.It is clinically rare and seldom occurs in the jaw.This article reports a case of pathologically confirmed periosteal osteosarcoma of the mandible.CT revealed a soft tis-sue nodule adjacent to the right side of the mandibular body with inhomogeneous rim enhancement on post-contrast images,while the adjacent mandibular bone showed no osseous destruction.On MRI,the lesion exhibited low signal intensity on T1-weighted images and high signal intensity on T2-weighted images.No abnormal signal intensity was observed within the adjacent mandibular medullary cavity.18F-FDG PET/CT imaging demonstrated high metabolic activity in the solid components of the tu-mor.These imaging findings are of significance for improving the understanding of this disease.
Keywords：Positron emission computed tomography/Computed Tomography18F-flurodeoxyglucosePeriostal osteosarcoma
Publication Date：2026-01-30
Online Publishing Date：2026-03-20(First online date of this platform, not the publication date of the document)
Pages：3( 177-179 )