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E2304. Can I Get a Cardiothoracic Consult?
Authors
  1. Chananya Stern; Technion-Israel Institute of Technology
  2. Cyril Rosenfeld; Albert Einstein College of Medicine Jacobi Medical Center
  3. Linda Broyde Haramati; Albert Einstein College of Medicine Montefiore Medical Center
  4. Jonathan Alis; Albert Einstein College of Medicine Jacobi Medical Center
Background
In this educational exhibit, you will find answers to a wide variety of questions in cardiothoracic imaging. We have selected questions and topics that we have been commonly asked from our fellow radiologists, clinicians, residents and medical students. Each slide has an important teaching point that will enhance your knowledge and confidence. Some slides will review "must know" topics and others will clarify and address less well known and poorly understood concepts.

Educational Goals / Teaching Points
-Refresh your knowledge of classic radiographic appearances of lobar collapse; refresh your knowledge of lines and stripes on radiograph and CT and why it matters; master the lateral radiograph; how to analyze malpositioned lines, focusing on the less common locations; become familiar with a wide variety of thoracic and cardiac pseudolesions; learn common normal variants and when it's important to mention them; learn what makes a diagnostic CT for pulmonary embolism (PE) for acute and chronic PE; learn the most effective CT window for seeing a PE; become familiar with atypical pulmonary nodules; demonstrate some less common causes of pulmonary calcification; simple approach to differentiating interstitial lung disease; and become familiar with normal appearances of thymus tissue.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Radiographic appearances of right upper lobe, left upper lobe, right middle collapses - the significance and clinical implications. Radiographic and CT appearances of lines and stripes, and anatomic structures that create them: posterior junction line, right paratracheal stripe, aortopulmonary window, azygoesophageal recess, spine lines. Left sided central venous lines differential - extravascular, arterial, venous including left pericardiophrenic vein and left vertical vein. Feeding tubes terminating in the pleural spaces. Pseudolesions, such as pericardial recesses, pulmonary venous recesses, cisterna chyli. Pulmonary ligaments and investment of the phrenic nerve and it's appearance. Contrast opacification required to diagnose an acute or chronic PE and understand the most effective window for visualizing PE. Atypical pulmonary nodules, including malignant calcifications and fat containing lesions. Normal thymic appearance and pathology including thymic cysts, thymomas, thymic hyperplasia and lymphoma.

Conclusion
Through this unique educational exhibit, we have addressed a wide variety of common and uncommon topics within cardiothoracic imaging within a practical and succinct framework. This information will provide the radiologist with confidence to accurately interpret the presented cases.