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Related Concept Videos

Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
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Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
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Related Experiment Video

Updated: Feb 20, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
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Primary Pericardial Angiosarcoma Shown on FDG PET/CT.

Ximin Shi1, Fang Li

  • 1From the Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China.

Clinical Nuclear Medicine
|October 28, 2017
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Summary
This summary is machine-generated.

A rare primary pericardial angiosarcoma mimicked tuberculous pericarditis in a 63-year-old woman. Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography (FDG PET/CT) imaging was crucial for diagnosis.

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Area of Science:

  • Cardiovascular Pathology
  • Oncology
  • Diagnostic Imaging

Background:

  • Persistent bloody pericardial effusion can be challenging to diagnose.
  • Tuberculous pericarditis is a common consideration for such presentations.
  • Initial empirical antituberculosis therapy can be ineffective in non-tuberculous conditions.

Observation:

  • A 63-year-old woman presented with persistent bloody pericardial effusion.
  • Despite empirical antituberculosis therapy, symptoms persisted.
  • FDG PET/CT demonstrated abnormal metabolic activity within the pericardium, aorta, pulmonary artery, and left atrium.

Findings:

  • Histopathologic examination confirmed primary pericardial angiosarcoma.
  • The imaging findings, while suggestive of inflammation, ultimately pointed towards a neoplastic process.
  • The absence of metastatic disease on PET/CT indicated a primary pericardial origin.

Implications:

  • This case highlights the importance of considering rare malignancies in the differential diagnosis of pericardial effusion.
  • FDG PET/CT can be a valuable tool in differentiating inflammatory from neoplastic causes of pericardial disease.
  • Accurate diagnosis is critical for appropriate treatment and improved patient outcomes in primary pericardial tumors.