What are Rotter's nodes?

• A. Nodes located beneath the scapula
• B. Nodes between the pectoralis major and minor muscles
• C. Nodes associated with the thoracic cavity
• D. Nodes found along the costal margin

Answer: (B)

Rotter's nodes are lymph nodes that are located between the pectoralis major and pectoralis minor muscles. This anatomical positioning is significant as these nodes are often involved in the drainage of lymphatic fluid from the breast, particularly from medial and central portions of the breast. Their relevance becomes particularly important in clinical assessments for breast cancer, as understanding lymphatic drainage can help in staging and treatment planning.

The identification of these nodes is crucial during surgical procedures like sentinel lymph node biopsies and axillary dissections. Recognizing their location helps healthcare professionals better understand the pathways through which breast cancer may metastasize and can influence decisions regarding treatment options for patients.