Acromegaly and Colorectal Neoplasm: An Update

Area of Science:

• Endocrinology
• Oncology
• Gastroenterology

Background:

• Acromegaly, caused by excess growth hormone (GH) and insulin-like growth factor-I (IGF-I), leads to systemic complications.
• A potential increased risk of certain cancers, particularly colorectal cancer (CRC), is noted in acromegaly patients.

Purpose of the Study:

• To review the current data on the association between acromegaly and CRC.
• To explore the pathophysiology, epidemiology, and screening recommendations for CRC in acromegaly.

Main Methods:

• Systematic review of existing literature on acromegaly and colorectal cancer.
• Analysis of studies on GH-IGF-I axis in CRC pathophysiology.
• Evaluation of epidemiological data, cancer incidence, and mortality rates.

Main Results:

• The GH-IGF-I axis may promote CRC through angiogenesis, proliferation, and altered apoptosis.
• Epidemiological studies show controversial findings regarding CRC incidence and mortality in acromegaly.
• Guidelines recommend colonoscopic screening for acromegaly patients, but optimal timing remains debated.

Conclusions:

• The relationship between acromegaly and CRC requires further elucidation.
• Standardized screening protocols are needed for early detection of CRC in acromegaly.
• Understanding the GH-IGF-I axis's role is crucial for risk stratification and management.