A rare presentation of an extraskeletal osteosarcoma at a previous interscapular injection site in a dog is described. Treatment included surgical excision of the tumor followed by 6 rounds of intravenous carboplatin, oral toceranib, and cyclophosphamide. The dog survived for 20.5 months after diagnosis despite early development of pulmonary metastases.
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World J Surg Oncol
January 2025
The Department of General Surgery, The Second Hospital of Jilin University, Changchun, 130041, China.
Background: Extraskeletal osteosarcoma (ESOS) is a rare kind of sarcoma with a low preoperative diagnosis and a poor prognosis. ESOS arising from abdominal mesentery is extremely rare. Increasing diagnostic methods and standardizing treatment protocols are crucial issues of ESOS.
View Article and Find Full Text PDFRadiol Case Rep
March 2025
Department of Radiology, Sanford USD Medical Center, Sioux Falls, SD, USA.
Osteosarcoma of primary breast origin is a rare form of malignancy. Imaging findings are nonspecific and often overlap with other differential considerations reinforcing the importance of radiologic-pathologic correlation for an accurate diagnosis. This case report details the clinical presentation, imaging findings, histopathological features, and therapeutic approach that transpired to diagnose and treat this rare malignancy.
View Article and Find Full Text PDFJ Surg Case Rep
January 2025
University Clinic for Orthopedic Diseases, 1000 Skopje, North Macedonia.
Extraskeletal osteosarcoma (ESOS) represents a rare soft tissue entity, accounting for ⁓1% of all soft tissue malignancies. It is generally considered to have an even worse prognosis than bone osteosarcoma, therefore detailed investigations and proper treatment are required. ESOSs arising in the subcutaneous tissue are even rarer than the ones positioned in deep tissues, and they are considered to have far better outcomes.
View Article and Find Full Text PDFJ Oral Facial Pain Headache
June 2024
Department of Maxillofacial Surgery, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania.
Osteoma is a rare benign tumor primarily affecting the craniofacial skeleton. Coronary osteomas in the coronoid process are uncommon and asymptomatic until they affect mandibular function. This report presents a case of coronoid osteoma with its diagnosis, treatment and surgical approach.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
September 2024
Department of Thoracic Medicine and Surgery, Temple University Hospital, Philadelphia, Pennsylvania.
Primary extraskeletal osteosarcoma of the lung is exceedingly rare and associated with a poor prognosis. This case report presents a patient with circumferential pulmonary ossification secondary to lung extraskeletal osteosarcoma with compressive mediastinal shift who underwent extrapleural pneumonectomy that led to resolution of symptoms. This case offers an approach to the operative management of primary thoracic osteosarcoma and suggests that even patients with advanced disease may be surgical candidates, particularly for symptom relief.
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