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Related Concept Videos

Bone Disorders01:29

Bone Disorders

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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.
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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Updated: Nov 10, 2025

Modeling Primary Bone Tumors and Bone Metastasis with Solid Tumor Graft Implantation into Bone
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Modeling Primary Bone Tumors and Bone Metastasis with Solid Tumor Graft Implantation into Bone

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An Approach to Undiagnosed Bone Tumors.

Colleen M Costelloe1, John E Madewell1

  • 1The University of Texas MD Anderson Cancer Center, Department of Musculoskeletal Imaging, Houston, TX.

Seminars in Ultrasound, CT, and MR
|April 5, 2021
PubMed
Summary
This summary is machine-generated.

Radiographic analysis of primary bone tumors aids diagnosis. The modified Lodwick-Madewell system enhances lesion assessment, guiding biopsy or follow-up imaging recommendations for bone tumors.

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Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Radiographic appearance is crucial for diagnosing primary bone tumors, complementing histopathology.
  • Tumor aggression and malignant potential correlate with lesion margins observed on radiographs.
  • The Lodwick-Madewell grading system historically relied on radiographic margin analysis.

Purpose of the Study:

  • To review and compare the original and modified Lodwick-Madewell radiographic grading systems for primary bone tumors.
  • To highlight the importance of interpreting initial radiographic findings in bone tumor assessment.
  • To explain concepts for evaluating radiographic features that guide clinical management decisions.

Main Methods:

  • Review of existing literature on radiographic grading systems for primary bone tumors.
  • Comparison of the original Lodwick-Madewell system with its modified version.
  • Discussion of key radiographic features indicative of tumor aggression and malignancy.

Main Results:

  • The modified Lodwick-Madewell system incorporates serial radiographic changes and occult aggressive lesions.
  • Radiographic margin analysis remains a key component in both systems for assessing tumor behavior.
  • Initial radiographic interpretation significantly influences recommendations for biopsy or further imaging.

Conclusions:

  • The modified Lodwick-Madewell system offers a more comprehensive approach to radiographic assessment of bone tumors.
  • Accurate interpretation of radiographic features is essential for appropriate patient management.
  • Radiology plays a pivotal role in the initial diagnostic pathway for primary bone tumors.