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Case Report
Diaphyseal osteosarcoma or synchronous osteosarcoma
1 Resident, Department of Orthopaedic and Traumatology, Faculty of Medicine and Nursing, Yogyakarta, Indonesia
2 Staff, Department of Orthopaedic and Traumatology, Faculty of Medicine and Nursing, Yogyakarta, Indonesia
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Widyo Wahyu Pratomo
Resident, Department of Orthopaedic and Traumatology, Faculty of Medicine and Nursing, Yogyakarta,
Indonesia, 55211
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Article ID: 100010O03WP2018
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Pratomo WW, Magetsari R. Diaphyseal osteosarcoma or synchronous osteosarcoma. Edorium J Orthop 2018;4:100010O03WP2018.ABSTRACT
Introduction: Osteosarcoma usually originates in the metaphyseal region of long bone, but may also arise in the diaphyseal of long bone. Diaphyseal osteosarcoma is a rare cases account for <10% of all osteosarcoma. In some cases two or more osteosarcoma lesions are seen in the same patient, at the same time (Synchronous osteosarcoma). It’s unusual condition of osteosarcoma, they are found at a frequency of about 1–3% osteosarcoma cases.
Case Report: A 15-year-old male patient, with history pain and swelling in the left knee since one year ago. The pain and swelling gradually progressive with weight loss and anorexia. Physical examination revealed big swelling on the left knee region, solid, fixed, with tenderness and deformity. X-ray shows define expansive lytic lesion replacing the entire proximal tibia and a fracture in the middle third of the left femur with lytic lesion around the fracture site. Nodular pulmonary metastatic was detected. Fine needle aspiration biopsy revealed sign of malignancy suspicious osteosarcoma.
Conclusion: We reported a rare case of synchronous osteosarcoma. The diagnosis was confirmed with biopsy finding on the both lesion, in the left proximal tibia and in the middle third of the left femur.
Keywords: Diaphyseal, Malignancy, Osteosarcoma, Synchronous
SUPPORTING INFORMATION
Author Contributions
Widyo Wahyu Pratomo - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Rahadyan Magetsari - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Guaranter of SubmissionThe corresponding author is the guarantor of submission.
Source of SupportNone
Consent StatementWritten informed consent was obtained from the patient for publication of this case report.
Data AvailabilityAll relevant data are within the paper and its Supporting Information files.
Conflict of InterestAuthors declare no conflict of interest.
Copyright© 2018 Widyo Wahyu Pratomo et al. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.
