Diagnostic Imaging Flashcards
6 cards from real Mesothelioma Diagnosis practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Diagnostic Imaging flashcards as text
On CT imaging, which feature is most suggestive of peritoneal mesothelioma?
Answer: Diffuse peritoneal thickening with ascites
Peritoneal mesothelioma typically appears on CT as diffuse peritoneal thickening or nodularity accompanied by ascites.
Which imaging finding on CT is used to calculate the peritoneal cancer index (PCI) in peritoneal mesothelioma?
Answer: Distribution and size of peritoneal tumor deposits
The PCI is calculated by scoring the size and distribution of tumor deposits across 13 abdominal regions on CT to guide surgical planning.
What is the advantage of using integrated PET/CT over CT alone in staging mesothelioma?
Answer: Better detection of occult nodal and distant metastatic disease
PET/CT combines functional metabolic data with anatomical detail, improving detection of nodal metastases and distant spread that CT alone may miss.
Which MRI sequence is most useful for characterizing the relationship of pleural mesothelioma to the diaphragm?
Answer: T2-weighted imaging
T2-weighted MRI provides excellent contrast between tumor and adjacent structures, helping delineate diaphragmatic involvement.
In mesothelioma imaging, contralateral pleural disease or pericardial extension indicates which TNM stage?
Answer: Stage IV
Extension to contralateral pleura or pericardium indicates advanced T4 disease, placing the patient in Stage IV of the IMIG staging system.
Ultrasound of the chest in mesothelioma is most useful for which clinical application?
Answer: Guiding thoracentesis and pleural biopsy
Ultrasound is primarily used at the bedside to guide thoracentesis (fluid drainage) and image-guided pleural biopsy safely.