Synchronous multiple primary lesions of the upper aerodigestive system

Area of Science:

• Oncology
• Gastroenterology
• Otolaryngology

Background:

• Multiple primary lesions in the upper aerodigestive tract were once considered rare.
• Recent studies indicate an incidence ranging from 1% to 11%, possibly due to improved diagnostics and follow-up.
• Distinguishing between sequential and synchronous lesions is critical for effective treatment.

Purpose of the Study:

• To determine the incidence of synchronous second primary lesions in upper aerodigestive tract cancer.
• To evaluate the efficacy of panendoscopy in detecting these synchronous lesions.

Main Methods:

• A prospective study involving 162 consecutive patients diagnosed with upper aerodigestive tract cancer.
• All patients underwent panendoscopy, regardless of lesion size, location, or anesthesia suitability.
• Systematic examination for the presence of additional primary tumors.

Main Results:

• Fifteen synchronous second primary lesions were diagnosed among the 162 patients.
• This represents an incidence rate of 9.2% for synchronous lesions.
• Panendoscopy proved to be an invaluable tool for identifying these lesions.

Conclusions:

• Synchronous second primary lesions occur with a significant frequency (9.2%) in upper aerodigestive tract cancer.
• Early detection of synchronous lesions through panendoscopy is essential for comprehensive patient management.
• Increased emphasis on detecting synchronous lesions is warranted due to their impact on prognosis and treatment strategies.