Mesothelioma Therapy Diagnosis and Biomarkers for Mesothelioma 1

Question 1

Which imaging modality is typically performed first when mesothelioma is clinically suspected?

Accepted Answer

Chest X-ray

Answer

Chest X-ray is the standard initial imaging study when mesothelioma is suspected, commonly revealing unilateral pleural effusion or pleural thickening.

Question 2

Which CT finding is most characteristic of pleural mesothelioma?

Accepted Answer

Circumferential pleural thickening encasing the lung

Answer

Circumferential pleural thickening that encases the lung is the classic CT appearance of pleural mesothelioma, distinguishing it from localized lung cancer.

Question 3

What is the primary role of PET-CT in the evaluation of mesothelioma?

Accepted Answer

It assesses metabolic activity of pleural disease and detects distant metastases for staging

Answer

PET-CT assesses the metabolic activity of pleural thickening, evaluates regional lymph nodes, and detects occult distant metastases, making it essential for accurate staging.

Question 4

Which MRI sequences are most useful for evaluating diaphragmatic and chest wall invasion in mesothelioma?

Accepted Answer

T2-weighted and contrast-enhanced T1-weighted sequences

Answer

T2-weighted and contrast-enhanced T1-weighted MRI sequences provide superior soft tissue contrast and enhancement patterns that best delineate invasion of the diaphragm and chest wall.

Question 5

What is the most common radiographic finding on initial chest X-ray in patients with pleural mesothelioma?

Accepted Answer

Unilateral pleural effusion

Answer

Unilateral pleural effusion is the most common initial radiographic finding in pleural mesothelioma, often prompting further diagnostic workup.

Mesothelioma Therapy Practice Test

Mesothelioma Therapy Practice Test

Mesothelioma Therapy Diagnosis and Biomarkers for Mesothelioma 1