Mesothelioma Navy Types of Mesothelioma — Questions and Answers
Question 1: What are the four types of mesothelioma based on location?
- Pleural (lungs), peritoneal (abdomen), pericardial (heart), and testicular (Correct answer)
- Only lung mesothelioma exists
- Pleural and peritoneal only
- Brain, liver, kidney, and lung mesothelioma
Correct answer: Pleural (lungs), peritoneal (abdomen), pericardial (heart), and testicular
Mesothelioma is classified by the body cavity where it develops: pleural (70-80% of cases, lung lining), peritoneal (20-25%, abdominal lining), pericardial (1-2%, heart lining), and testicular (<1%).
Question 2: What are the three cell types of mesothelioma?
- Epithelioid, sarcomatoid, and biphasic (mixed) (Correct answer)
- Only one cell type exists
- Red, white, and mixed cells
- Benign, malignant, and pre-malignant
Correct answer: Epithelioid, sarcomatoid, and biphasic (mixed)
Mesothelioma cells are classified as epithelioid (most common, best prognosis), sarcomatoid (most aggressive, worst prognosis), or biphasic (mix of both, intermediate prognosis).
Question 3: What is peritoneal mesothelioma?
- Cancer of the abdominal lining caused by asbestos exposure, treated with HIPEC surgery when possible (Correct answer)
- A stomach infection from contaminated water
- A dietary condition caused by poor nutrition
- A benign growth that requires no treatment
Correct answer: Cancer of the abdominal lining caused by asbestos exposure, treated with HIPEC surgery when possible
Peritoneal mesothelioma affects the abdominal lining and may be treated with cytoreductive surgery combined with HIPEC (heated intraperitoneal chemotherapy), with better survival rates than pleural mesothelioma.
Question 4: What makes epithelioid mesothelioma different from sarcomatoid?
- Epithelioid cells grow slower and respond better to treatment; sarcomatoid cells are aggressive and resistant to therapy (Correct answer)
- They grow at the same rate
- Sarcomatoid is benign while epithelioid is malignant
- The only difference is the location in the body
Correct answer: Epithelioid cells grow slower and respond better to treatment; sarcomatoid cells are aggressive and resistant to therapy
Epithelioid cells are uniform and slow-growing, responding better to chemotherapy and surgery. Sarcomatoid cells are elongated, aggressive, and more resistant to treatment.
Question 5: What is HIPEC treatment for peritoneal mesothelioma?
- Heated Intraperitoneal Chemotherapy — heated chemo solution circulated in the abdomen during surgery (Correct answer)
- A type of breathing exercise for lung recovery
- A herbal supplement recommended for mesothelioma patients
- A radiation therapy technique targeting the abdomen
Correct answer: Heated Intraperitoneal Chemotherapy — heated chemo solution circulated in the abdomen during surgery
HIPEC involves surgically removing visible tumors (cytoreductive surgery) then circulating heated chemotherapy solution throughout the abdominal cavity to kill remaining microscopic cancer cells.
Question 6: What clinical trials are available for mesothelioma patients?
- Trials testing immunotherapy, gene therapy, targeted therapy, and combination treatments (Correct answer)
- No clinical trials exist for mesothelioma
- Only trials for pleural mesothelioma, not other types
- Trials are only available outside the United States
Correct answer: Trials testing immunotherapy, gene therapy, targeted therapy, and combination treatments
Active mesothelioma clinical trials investigate immunotherapy combinations, targeted molecular therapies, gene therapy, photodynamic therapy, and novel drug combinations.
Mesothelioma Navy Types of Mesothelioma
What are the four types of mesothelioma based on location?