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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
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Recurrent, Large, Extraskeletal Osteosarcoma at the Back.

Muhammad Danish Muneeb1, Mirza Agha Naushad Baig2

  • 1Department of General Surgery, Baqai Medical University, Karachi, Pakistan.

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|November 30, 2019
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Summary
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Extraskeletal osteosarcoma, a rare soft tissue tumor, presents diagnostic and management challenges. Early inclusion in differential diagnoses for large, recurrent masses is crucial for effective patient care.

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Area of Science:

  • Oncology
  • Surgical Pathology

Background:

  • Extraskeletal osteosarcoma is a rare malignancy.
  • Diagnosis and treatment pose significant challenges for surgeons.
  • The tumor's slow-growing nature often leads to large presenting sizes.

Observation:

  • A 70-year-old male presented with a recurrent 19 cm soft tissue mass.
  • Excisional biopsy and complete tumor removal with clear margins were performed.
  • Histopathology confirmed the diagnosis of extraskeletal osteosarcoma.

Findings:

  • This case represents the first documented instance of extraskeletal osteosarcoma in Pakistan.
  • Complete surgical excision with intact margins was achieved.
  • Histopathological analysis confirmed the diagnosis.

Implications:

  • Extraskeletal osteosarcoma should be considered in the differential diagnosis of large, recurrent soft tissue masses.
  • This case highlights the importance of considering rare diagnoses in challenging clinical scenarios.
  • Improved diagnostic strategies and treatment protocols are needed for this rare sarcoma.