Isolated Skull Metastasis With Unusual Spiculated Periosteal Reaction From Rectal Cancer Resembling Osteosarcoma on FDG PET/CT.

Authors :: Liu M
Dong A
Zuo C
Zhu Y
Fu X
Source :: Clinical nuclear medicine [Clin Nucl Med] 2023 Nov 01; Vol. 48 (11), pp. 1006-1008. Date of Electronic Publication: 2023 Sep 18.
Publication Year :: 2023
Abstract: Abstract: We describe FDG PET/CT findings in a case of isolated skull metastasis with spiculated periosteal reaction from rectal mucinous adenocarcinoma 8 years after proctectomy. The skull metastasis showed heterogeneous FDG uptake and multiple short spicules of bone producing the sunburst appearance resembling primary osteosarcoma or Ewing sarcoma. Familiarity with this atypical imaging appearance of the bone metastasis from rectal cancer may be helpful for the diagnosis and differential diagnosis.<br />Competing Interests: Conflicts of interest and sources of funding: This work was supported by a grant from the General Program of Shanghai Municipal Health Commission (grant 202040414).<br /> (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)

Subjects :: Humans
Positron Emission Tomography Computed Tomography methods
Fluorodeoxyglucose F18
Skull
Radiopharmaceuticals
Osteosarcoma diagnostic imaging
Osteosarcoma pathology
Bone Neoplasms diagnostic imaging
Bone Neoplasms pathology
Rectal Neoplasms diagnostic imaging
Rectal Neoplasms pathology

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