The Deep Lymphatics of the Forearm Without the Muscles Viewed Anteriorly

Description

Running in parallel with the radius (lateral, thumb side) and ulna (medial, little finger side), the deep lymphatic vessels of the forearm are rendered with the musculature removed to expose their course in the anterior compartment. Paired deep lymphatics track alongside the radial and ulnar arteries and their venae comitantes, then converge proximally toward the cubital fossa, where deep lymph nodes along the brachial vessels are typically represented. Distally, channels extend across the carpus toward the palmar hand, maintaining close relationships with the neurovascular bundles; major peripheral nerves into the hand are also visible for orientation. Stripping away the flexor mass makes the teaching point clear: deep lymphatics do not wander independently, they follow the deep veins and arteries, so lymphatic spread and postoperative edema patterns often mirror vascular territories. This anterior exposure is the one surgeons think in during volar approaches to the distal radius and during brachial artery exposure, where aggressive retraction and hematoma can disrupt lymphatic collectors and contribute to persistent forearm swelling. It also provides a clean framework for discussing how infection or malignancy from deep structures of the hand and forearm reaches deep cubital and brachial nodes, rather than the superficial epitrochlear chain. Use this plate in gross anatomy labs, upper limb lymphatic drainage lectures, and surgical anatomy chapters that pair the radius and ulna with their accompanying vessels and lymphatics. It also fits orthopedic and plastic surgery teaching on volar forearm incisions, flap planning, and postoperative lymphedema counseling. Anatomical accuracy verified by SciePro's Medical Advisory Board.