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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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Related Experiment Video

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[The radiation-induced jaw osteosarcoma: CT imaging features].

Shaoying Wang1, Zilai Pan2, Huimin Shi

  • 1Department of Radiology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China.

Zhonghua Kou Qiang Yi Xue Za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology
|April 5, 2014
PubMed
Summary

Computed tomography (CT) features of radiation-induced jaw osteosarcoma (RIJOS) include bone destruction with mineralized tumor matrix and soft tissue extension. These CT findings aid in identifying RIJOS and pre-operative assessment.

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Area of Science:

  • Oncology
  • Radiology
  • Oral and Maxillofacial Surgery

Background:

  • Radiation-induced jaw osteosarcoma (RIJOS) is a rare but serious complication following therapeutic irradiation.
  • Understanding the imaging characteristics of RIJOS is crucial for early diagnosis and effective management.

Purpose of the Study:

  • To evaluate the computed tomography (CT) features of radiation-induced jaw osteosarcoma (RIJOS).
  • To identify characteristic CT findings that can aid in the diagnosis and pre-operative assessment of RIJOS.

Main Methods:

  • Retrospective review of demographic and CT findings in thirteen patients diagnosed with RIJOS.
  • Analysis of CT features including tumor location, bone destruction, mineralized tumor matrix, periosteal reaction, soft tissue extension, and calcification.

Main Results:

  • The mean latent period for RIJOS development was 11 years post-radiotherapy.
  • Characteristic CT findings included bone destruction, osteoid tumor matrix mineralization (12/13 patients), periosteal reaction (11/13 patients), and soft-tissue extension (all patients).
  • Tumor matrix mineralization and soft-tissue extension were prominent features.

Conclusions:

  • Characteristic CT imaging of RIJOS involves bone destruction with significant mineralized tumor matrix and soft tissue extension within the radiation field.
  • CT findings are valuable for identifying RIJOS and for pre-operative assessment, guiding surgical planning.