Mesothelioma Navy Types of Mesothelioma 2

Question 1

Which type of mesothelioma affects the lining of the heart?

Accepted Answer

Pericardial mesothelioma

Answer

Pericardial mesothelioma develops in the pericardium, the thin membrane surrounding the heart, and accounts for roughly 1% of all cases.

Question 2

What cell type in epithelioid mesothelioma is responsible for its relatively better prognosis compared to other cell types?

Accepted Answer

Well-defined epithelial cells that respond better to therapy

Answer

Epithelioid cells are more uniform and cohesive, making them more responsive to chemotherapy and resulting in longer median survival.

Question 3

A Navy veteran develops mesothelioma in the abdominal cavity after asbestos exposure aboard a ship. Which type does he most likely have?

Accepted Answer

Peritoneal mesothelioma

Answer

Peritoneal mesothelioma forms in the peritoneum lining the abdominal cavity and is the second most common type after pleural.

Question 4

Which mesothelioma cell type has the worst prognosis and is characterized by spindle-shaped cells?

Accepted Answer

Sarcomatoid

Answer

Sarcomatoid mesothelioma is the most aggressive cell type, with spindle-shaped cells that are highly resistant to standard treatments.

Question 5

Testicular mesothelioma originates in which structure?

Accepted Answer

The tunica vaginalis surrounding the testes

Answer

Testicular mesothelioma arises in the tunica vaginalis, the mesothelial lining that surrounds the testes, making it the rarest form.

Mesothelioma Navy Practice Test