Axillary arch: detailed ultrasonographic images with multiplanar CT correlation

Area of Science:

• Anatomy
• Medical Imaging
• Radiology

Background:

• The axillary arch is an uncommon anatomical variant of the axillary musculature.
• It is often unrecognized clinically, despite its prevalence.

Observation:

• This report presents the first detailed ultrasonographic features of an axillary arch.
• Findings were correlated with multiplanar reformation CT images.
• A schematic anatomical diagram was incorporated for clarity.

Findings:

• A unilateral axillary arch was identified in a 44-year-old woman presenting with a palpable axillary mass.
• Ultrasonography and CT imaging provided detailed visualization of the anatomical variant.
• The mass was attributed to the presence of the axillary arch.

Implications:

• Accurate identification of the axillary arch via imaging is crucial for understanding axillary masses.
• This case highlights the importance of recognizing this anatomical variant in clinical practice.
• Improved diagnostic accuracy can prevent misdiagnosis and guide appropriate patient management.