Usefulness of PET/CT for diagnosis of periosteal chondrosarcoma of the femur: A case report

Morimoto,Shota; Futani,Hiroyuki; Tsuchiyama,Konan; Fukunaga,Satoru; Tsukamoto,Yoshitane; Yoshiya,Shinichi

doi:10.3892/ol.2014.2010

June-2014 Volume 7 Issue 6

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June-2014 Volume 7 Issue 6

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Case Report

Usefulness of PET/CT for diagnosis of periosteal chondrosarcoma of the femur: A case report

Authors:
- Shota Morimoto
- Hiroyuki Futani
- Konan Tsuchiyama
- Satoru Fukunaga
- Yoshitane Tsukamoto
- Shinichi Yoshiya
View Affiliations / Copyright

Affiliations: Department of Orthopedic Surgery, Hyogo College of Medicine, Nishinomiya, Hyogo 663‑8501, Japan, Department of Pathology, Hyogo College of Medicine, Nishinomiya, Hyogo 663‑8501, Japan
Pages: 1826-1828
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Published online on: March 28, 2014

https://doi.org/10.3892/ol.2014.2010
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Abstract

Periosteal chondrosarcoma is an extremely rare low‑grade malignant cartilaginous tumor arising from the external bone surface. Diagnosis of periosteal chondrosarcomas may be challenging, since this condition closely resembles periosteal chondromas. It has been reported that positron emission tomography (PET) is useful in distinguishing benign from malignant cartilaginous tumors using a maximum standardized uptake value (SUVmax) cut‑off of 2.0 or 2.3. This report presents the case of a 40‑year‑old female with an 18‑month history of a tender mass in the left distal femur. Radiological findings demonstrated periosteal buttressing. Magnetic resonance imaging (MRI) revealed a chondrogenic tumor of 3 cm in size developing from the external bone surface. It was difficult to differentiate periosteal chondrosarcoma from periosteal chondroma on the basis of size and the radiological and MRI findings. PET/computed tomography (CT) revealed abnormal linear uptake with an SUVmax of 2.7, indicating a malignant tumor. A diagnosis of periosteal chondrosarcoma was made, and wide resection was performed. Tumor histology was consistent with grade II chondrosarcoma. PET/CT is thus useful in differentiating periosteal chondrosarcoma from periosteal chondroma.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Usefulness of PET/CT for diagnosis of periosteal chondrosarcoma of the femur: A case report

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