Squamous Cell Carcinoma in Head and Neck

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Where do squamous cell carcinomas most commonly arise in the head and neck?

Esophagus

Oral cavity (correct)

Nasal cavity

Larynx

What is the 5-year survival rate of early-stage oral cancer?

Approximately 80% (correct)

Approximately 10%

Approximately 50%

Approximately 20%

Which of the following is NOT a predisposing factor for cancer of the lower lip?

Alcohol consumption (correct)

Pipe smoking

Chronic smoking

Exposure to actinic radiation (sunlight)

What initial appearance can cancers of the oral cavity have in the early stages?

Smooth surface Signup and view all the answers

What is the initial stage of squamous cell carcinoma before invasion?

Carcinoma in situ Signup and view all the answers

Which site is NOT a common distant metastasis location for squamous cell carcinoma?

Stomach Signup and view all the answers

Which of the following is considered a premalignant lesion of squamous cell carcinoma?

Leukoplakia Signup and view all the answers

What is the most common incriminated factor for leukoplakia and erythroplakia?

The use of tobacco products Signup and view all the answers

Which of the following lesions is much less common but more serious than leukoplakia?

Erythroplakia Signup and view all the answers

At what age range are leukoplakia and erythroplakia usually found?

40-70 years Signup and view all the answers

What is the accepted cause of hairy leukoplakia?

Epstein-Barr virus (EBV) Signup and view all the answers

In which condition are hairy leukoplakia lesions commonly found?

HIV/AIDS Signup and view all the answers

Which of the following is NOT a common growth pattern of squamous cell carcinoma (SCC) of the esophagus?

Pedunculated Signup and view all the answers

Most squamous cell carcinomas of the esophagus are characterized as:

Moderately to well-differentiated Signup and view all the answers

Which of the following statements about the spread of squamous cell carcinoma (SCC) of the esophagus is TRUE?

Tumors in the upper third tend to spread to cervical lymph nodes. Signup and view all the answers

What is the approximate 5-year survival rate for patients with superficial esophageal carcinoma?

75% Signup and view all the answers

Which of the following statements about adenocarcinoma of the esophagus is FALSE?

It is more common in the upper third of the esophagus. Signup and view all the answers

What is the approximate lifetime risk for cancer development from Barrett's esophagus?

10% Signup and view all the answers

Squamous Cell Carcinoma in Head and Neck

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