Background: Extraosseous osteosarcoma arising in the head and neck region is an exceptional finding, with a few isolated cases informed in the literature. We report a new case of a large high-grade extraosseous osteosarcoma located in the neck.
Case Presentation: A 74 year-old woman with a tumor on the right side of the neck was treated by complete surgical resection. The histopathological diagnosis was osteoblastic extraosseous osteosarcoma. PET-CT scan disclosed no evidence of disease in other areas. Patient received adjuvant radiotherapy and after 3 months of follow-up tumor activity was detected in the cavernous sinus and the patient died of disease one month later.
Conclusion: Extraosseous osteosarcoma in head and neck region is exceptional, and incisional biopsy is the only method to establish a diagnosis and the one to differentiate it from other bone-producing soft tissue tumors. Surgery is the gold standard for treatment of extraosseous osteosarcoma.
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http://dx.doi.org/10.1016/j.anl.2011.07.014 | DOI Listing |
Diagnostics (Basel)
November 2024
Department of Diagnostic Radiology, School of Medicine, Tohoku University Graduate, Sendai 980-8574, Japan.
To construct an optimal magnetic resonance imaging (MRI) texture model to evaluate histological patterns and predict prognosis in patients with osteosarcoma (OS). Thirty-four patients underwent pretreatment MRI and were diagnosed as having OS by surgical resection or biopsy between September 2008 and June 2018. Histological patterns and 3-year survival were recorded.
View Article and Find Full Text PDFHead Neck
February 2025
Department of Otolaryngology-Head and Neck Surgery, Weill Cornell Medicine, New York, New York, USA.
Background: Ewing sarcoma (ES) of the ethmoid sinus with orbital involvement in an adult is very rare, with 16 reported cases in the literature. Immunohistochemical studies show small blue round cells positive for CD99 and fluorescence in situ hybridization (FISH) testing reveals positivity for the EWSR1 gene.
Methods: A 38-year-old male with a diagnosis of ES of the ethmoid sinus presented with left-sided periorbital pain and edema, rhinorrhea, and proptosis.
Medicine (Baltimore)
October 2024
Department of Hepatobiliary Surgery, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China.
Diagn Pathol
September 2024
Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
Background: Ewing sarcoma (EwS) is a highly malignant and heterogeneous tumor. Exploring clinicopathological characteristics and genetic features of EwS is critical for prognosis and treatment regimen.
Methods: Clinicopathological characteristics and genetic features of young (≤ 30y) and senior (> 30y) EwS patients were analyzed based on histology, phenotype, and next-generation sequencing (NGS) detection.
J Med Case Rep
August 2024
Faculty of Medicine, Damascus University, Damascus, Syria.
Background: Ewing sarcoma is a malignant round-cell tumor that primarily affects bones in children. It can also arise in extraosseous tissues, such as the lung, kidneys, and liver. The presentation symptoms of Ewing sarcoma may include cough, dyspnea, and chest pain.
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