Tag Archive for: Bone

Intraosseous Schwannoma of the Thoracic Spine: A Case Report

Case Report | Volume 7 | Issue 3 | JBST September – December 2021 | Page 2-4 | Ikuo Kudawara, Hiroyuki Aono. DOI: DOI:10.13107/jbst.2021.v07i03.53

Author: Ikuo Kudawara[1], Hiroyuki Aono[1]

[1] Department of Orthopaedic Surgery, National Hospital Organization Osaka National Hospital, 2-1-14, Hoenzaka, Chuo-ku, Osaka 540-0006, Japan.

Address of Correspondence
Dr. Ikuo Kudawara,
Department of Orthopaedic Surgery, National Hospital Organization Osaka National Hospital, Japan.
E-mail: kudawara.ikuo.rf@mail.hosp.go.jp

Abstract

Introduction: Primary schwannoma of the bone is extremely rare. Spinal schwannoma usually rises in the nerve root or the cauda equina and their branches that occasionally scallop on the adjacent bone. On radiology, their features often mimic those of bone tumors such as osteoblastoma, hemangioma, aneurysmal bone cyst, plasmacytoma, or bone metastasis. Therefore, the diagnosis of pure spinal schwannoma of the bone should be evaluated carefully when referring to radiological and histopathological findings.
Case Report: A 64-year-old female presented with back pain and lower leg dysesthesia. The tumor within the left lamina of the 12th thoracic spine showed an expansile and lytic lesion on computed tomography (CT) and intermediate signals on the T1-weighted image and high signals on the T2-weighted image on magnetic resonance imaging. In addition, an old compression fracture in the same vertebra was observed. ACT-guided biopsy specimen suggested schwannoma. The tumor was successfully excised, and afterward, remission of the symptoms was observed. A definitive diagnosis of intraosseous schwannoma was made. There has been no recurrence in the 6 years following surgery.
Conclusion: We have presented the radiological and histopathological findings as well as the clinical outcomes of an unusual case of intraosseous schwannoma of the posterior element of the 12th thoracic spine. Pre-operative CT-guided biopsy was useful in making a diagnosis and planning a surgical strategy.

Keywords: Schwannoma, Thoracic spine, Bone.

References:

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How to Cite this article: Kudawara I, Aono H | Intraosseous schwannoma of the thoracic spine: A case report. | Journal of Bone and Soft Tissue Tumors | Sep-Dec 2021; 7(3): 2-4.

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Diagnostic Comparison of F-18 Sodium FluorideNaF, Bone Scintigraphy, and F-18 Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in the Detection of Bone Metastasis

Vol 5 | Issue 1 | Jan-April 2019 | page: 9-12 | Zehra PınarP Koç, Pelin Ö Kara, Emel Sezer, Vehbi Erçolak

Authors: Zehra PınarP Koç [1], Pelin Ö Kara [1], Emel Sezer [2], Vehbi Erçolak [2]

[1] Department of Nuclear Medicine, Mersin University, Mersin/, Turkey.,
[2] Department of Oncology, Mersin University, Mersin, Turkey. Mersin/Turkey.

Address of Correspondence
Dr. Zehra PınarP ınar Koç,
Mersin University Nuclear Medicine Dpt., Mersin – 33343, Turkey.
E-mail: zehrapinarkoc@gmail.com

Abstract

Objective: The aim of this study is to compare the diagnostic efficiency of bone scintigraphy, fluorodeoxyglucose (FDG), and sodium fluoride (NaF) positron emission tomography/computed tomography (PET/CT) in the evaluation of bone metastasis of the several malignant tumors.
Materials and Methods: A total of Thirteen13 patients (9nine Ffemales and, 4four Mmales; mean 62,.3 ± 7,.1 years) with diagnosis of different malignant tumors were included in the study. The comparison of bone scintigraphy, FDG, and NaF PET/CT results were was performed retrospectively.
Results: The NaF PET/CT demonstrated all the metastatic patients in this series; however, FDG PET/CT missed 7/13 and bone scintigrapyhy 1/13 of the patients with bone metastasis. NaF PET/CT showed significantly higher number of metastatic lesions in all the patients.
Conclusion: The lesion- based analysis showed that NaF PET/CT is significantly superior to FDG PET/CT and bone scintigraphy and patient- based analysis lower detection rate for the FDG PET/CT.
Keywords: Bone, scintigraphy, metastasis, sodium fluorideNaF, fluorodeoxyglucosefdg.

References

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How to Cite this article: PKoç Z P, Kara P Ö, Sezer E, Erçolak V.Diagnostic Comparison of F-18 Sodium FluorideNaF, Bone Scintigraphy, and F-18 Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in the Detection of Bone Metastasis. Journal of Bone and Soft Tissue Tumors Jan-Apr 2019;5(1): 9-12.

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