Lymphatics of the Hand

Description

Dorsally oriented lymphatic capillaries and collecting lymphatic vessels course superficial to the extensor tendons and deep fascia, forming fine drainage nets over the metacarpals and along the phalanges. From the digits, collectors converge proximally across the carpus toward the radial and ulnar borders of the hand, where they continue into larger superficial channels of the forearm en route to regional nodes. Osseous landmarks of the carpal bones, metacarpals, and phalanges sit deep to this network and help orient proximal to distal flow patterns. Thin-walled vessels, not a duct, dominate at this level. Dorsal hand lymphatics matter because small, superficial channels are the first pathways for edema, erysipelas, and lymphangitis to declare themselves clinically, often as tender linear streaking tracking proximally from a finger wound. This view also supports teaching why dorsal hand swelling can look disproportionate after trauma or intravenous infiltration, since lymphatic drainage here is superficial and easily disrupted by scarring or burns. Surgical planning benefits too, because incisions across the dorsum can compromise collectors and contribute to postoperative lymphedema, even when arterial and venous patency is intact. A practical map. Use this illustration in gross anatomy and upper limb dissection labs to pair surface anatomy with the concept of superficial lymphatic drainage, and in plastic surgery or hand therapy materials addressing dorsal flap design, scar management, and postinjury swelling. It also fits medical publishing needs for sections on lymphatic vessels of the upper limb, regional lymph nodes, and pathways of infection spread. Anatomical accuracy verified by SciePro's Medical Advisory Board.