Question

malignant mesothelioma is a disease in which malignant (cancer) cells form in the thin layer of tissue that covers the lung, chest wall, or abdomen....
the major cause of malignant mesothelioma is being exposed to asbestos over a period of time. this includes people who were exposed to asbestos in the workplace and their family members.
after a person is exposed to asbestos, it usually takes at least 20 years for malignant mesothelioma to form.

• \malignant mesothelioma,\ national cancer institute

which statement is accurate about malignant mesothelioma?
mesothelioma is a form of cancer that typically forms in the heart.
only a small number of mesothelioma cases have been caused by exposure to asbestos.
mesothelioma develops quickly and can be detected within a few years of exposure.
the family members of those exposed to asbestos are also at risk for mesothelioma.

Explanation:

• The first option is wrong as the text says cancer cells form in the thin layer of tissue that covers the lung, chest wall, or abdomen, not the heart.
• The second option is wrong because the text states the major cause is asbestos exposure.
• The third option is wrong as it takes at least 20 years for the disease to form after exposure.
• The fourth option is correct as the text mentions "people who were exposed to asbestos in the workplace and their family members" are at risk.

Answer:

The family members of those exposed to asbestos are also at risk for mesothelioma.