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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.
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Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
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Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
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Related Experiment Video

Updated: Sep 12, 2025

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
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Cardiac Paraganglioma Discovered Incidentally.

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  • 1Internal Medicine Residency, Kaiser Permanente San Francisco Medical Center, San Francisco, California, USA.

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Cardiac paragangliomas, rare neuroendocrine tumors, can be asymptomatic and challenging to diagnose. Early detection and multidisciplinary evaluation are crucial for managing these catecholamine-secreting tumors.

Keywords:
MR sequencescardiac magnetic resonanceechocardiographymurmurpositron emission tomography

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Area of Science:

  • Cardiology
  • Endocrinology
  • Oncology

Background:

  • Paragangliomas are rare neuroendocrine tumors originating from neural crest cells in the autonomic system.
  • Advances in imaging have increased the detection rates of these tumors.
  • Cardiac paragangliomas pose diagnostic challenges due to potential asymptomatic presentation.

Observation:

  • A 59-year-old man presented with an incidental diastolic murmur.
  • Echocardiography and cardiac MRI revealed a large mass in the right ventricle's atrioventricular groove.
  • Coronary angiography showed the mass was highly vascularized, and serologic tests revealed elevated epinephrine and dopamine levels.

Findings:

  • DOTATATE-PET/CT confirmed the diagnosis of a cardiac paraganglioma.
  • Cardiac paragangliomas can cause significant morbidity due to catecholamine secretion.
  • These tumors have a rare but potential for malignancy.

Implications:

  • Diagnosis requires a combination of serologic and advanced imaging techniques.
  • Multidisciplinary evaluation is essential for effective management strategies.
  • Further research is needed due to the paucity of evidence-based guidelines for cardiac paragangliomas.