lymphatic drainage of breast | lymph nodes | lymph vessels | pectoral region anatomy bd churasia скачать в хорошем качестве

lymphatic drainage of breast | lymph nodes | lymph vessels | pectoral region anatomy bd churasia

The lymphatic drainage of the breast is a crucial aspect of its anatomy, particularly concerning the spread of infections or malignancies such as breast cancer. The lymphatic drainage system of the breast primarily involves the following groups of lymph nodes: 1. Axillary Lymph Nodes The axillary lymph nodes receive the majority (about 75%) of the lymphatic drainage from the breast, especially from the lateral and upper quadrants. These are subdivided into several groups: Lateral (brachial) nodes Central nodes Apical nodes (drain into the subclavian lymph trunk) Pectoral (anterior) nodes (receive lymph from most of the breast tissue) Subscapular (posterior) nodes 2. Parasternal (Internal Mammary) Lymph Nodes These nodes lie along the internal thoracic artery, adjacent to the sternum. They primarily drain the medial quadrants of the breast. 3. Interpectoral (Rotter’s) Lymph Nodes Located between the pectoralis major and pectoralis minor muscles. They connect the pectoral and central axillary lymph nodes. 4. Infraclavicular (Deltopectoral) Lymph Nodes Located below the clavicle, they may receive lymph from the upper part of the breast. 5. Subdiaphragmatic and Abdominal Lymph Nodes Some lymphatics from the lower quadrants of the breast may drain into the subdiaphragmatic and abdominal lymph nodes. Clinical Significance Breast Cancer: Understanding lymphatic drainage is essential for staging and treatment, as cancer cells often spread via these lymphatics. Sentinel Lymph Node Biopsy: The sentinel node is the first lymph node to receive drainage from a tumor. Its status helps determine the extent of cancer spread. Lymphedema: Surgery or radiation therapy affecting these nodes can disrupt lymphatic flow, leading to swelling of the arm or chest. If you want more detailed clinical correlations or diagrams, let me know! #medical #medicalstudent #university #viralvideo #education #trending #bones #medicaldegree #neet