E2494. Role of PET CT in Pericystic Lung Malignancy: A Case-Based Multimodality Pictorial Review
Authors
Joel Webb;
Rush University Medical Center
Pokhraj Suthar;
Rush University Medical Center
Sumeet Virmani;
Rush University Medical Center
Background
Lung malignancies associated with cystic air spaces (congenital or fibrotic cysts, emphysematous spaces, bronchiectatic airways, dilated airspaces, etc.) are often associated with a delayed diagnosis due to the small size of the lesion, similar appearances to benign lesions, and unclear guidelines on the need for follow-up imaging. Positron Emission Tomography (PET) with CT is an important imaging modality for the investigation and characterization of these not-so-uncommon lung cancers.
Educational Goals / Teaching Points
This case-based pictorial review focuses on the spectrum of imaging findings on PET-CT to evaluate patients with pericystic lung malignancies, with multimodality correlation when available. The goal is to recognize that pericystic lung malignancies can have variable FDG uptake (usually minimal to mild).
Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
We present 15 cases demonstrating the role of PET-CT in the evaluation of patients with pericystic lung malignancies.
Conclusion
PET-CT plays an important role in the investigation and staging of lung malignancies, including pericystic lung malignancies.
