Pseudoachalasia: A review

Area of Science:

• Gastroenterology
• Oncology
• Esophageal Disorders

Background:

• Pseudoachalasia, a rare condition (2.4-4% of achalasia cases), mimics primary achalasia clinically, radiologically, and endoscopically.
• Distinguishing pseudoachalasia from achalasia is critical due to differing treatment strategies and patient prognoses.

Purpose of the Study:

• To review pseudoachalasia, focusing on diagnostic challenges and differentiating features from primary achalasia.
• To provide an overview of current understanding and diagnostic modalities for pseudoachalasia.

Main Methods:

• A comprehensive literature search was conducted using Medline, medical libraries, and Google.
• Keywords used included 'pseudoachalasia' and 'secondary achalasia'.
• Fifty relevant articles were retrieved and analyzed for this review.

Main Results:

• Despite extensive efforts and advanced diagnostic tools, differentiating pseudoachalasia from achalasia remains challenging.
• Clinical, radiological, and endoscopic findings are often similar between the two conditions.
• Endoscopy, endoscopic ultrasonography, and CT scans show potential in improving diagnostic accuracy.

Conclusions:

• Pseudoachalasia requires careful consideration in patients presenting with achalasia-like symptoms.
• Advanced imaging techniques offer promise but do not yet fully resolve diagnostic difficulties.
• Accurate diagnosis is essential for appropriate management and improved patient outcomes.