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Bone Disorders

Bone Disorders

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.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...

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Related Experiment Video

Updated: Aug 26, 2025

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma

Published on: October 14, 2016

Extra-skeletal osteosarcoma: a review.

Susan Hesni¹, Daniel Lindsay², Paul O'Donnell³

¹Department of Radiology, Royal National Orthopaedic Hospital (RNOH), Stanmore, UK. susan.hesni@nhs.net.

Skeletal Radiology

|October 4, 2022

Summary

This summary is machine-generated.

Extra-skeletal osteosarcoma is a rare soft tissue sarcoma that presents diagnostic challenges. This review details its features, diagnosis, and management for clinicians dealing with soft tissue tumors.

Keywords:

Bone Extraskeletal Osteosarcoma Sarcoma Tumor

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Last Updated: Aug 26, 2025

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma

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Published on: October 14, 2016

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Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

Published on: April 12, 2019

Intratibial Osteosarcoma Cell Injection to Generate Orthotopic Osteosarcoma and Lung Metastasis Mouse Models

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Published on: October 28, 2021

Area of Science:

Oncology
Radiology
Pathology

Background:

Extra-skeletal osteosarcoma (ESOS) is a rare malignant soft tissue sarcoma.
ESOS presents diagnostic challenges due to non-specific symptoms and soft tissue mineralization.
It can mimic other conditions like myositis ossificans.

Purpose of the Study:

To provide a comprehensive reference for radiologists and clinicians.
To outline the demographics, clinical presentation, and imaging features of ESOS.
To discuss differential diagnosis, management, and outcomes of ESOS.

Main Methods:

Literature review and synthesis of existing data.
Analysis of diagnostic criteria and imaging modalities.
Compilation of treatment strategies and prognostic factors.

Main Results:

ESOS exhibits varied demographics and clinical presentations.
Key imaging features aid in differentiating ESOS from other soft tissue lesions.
Management strategies involve a multidisciplinary approach, with outcomes varying based on stage and treatment.

Conclusions:

Accurate diagnosis of ESOS requires awareness of its rarity and potential mimicry.
Multimodality imaging plays a crucial role in identifying characteristic features.
Timely and appropriate management is essential for improving patient outcomes in ESOS.