Cubital lymph nodes

Nodi lymphoidei cubitales (supratrochleares)

Lymphatic & immuneLymphaticsArmLeft and right

View left in 3D View right in 3D

What it is

One to three small nodes on the inner side of the elbow, 3-5 cm above the medial epicondyle beside the basilic vein. Each node is a bean-shaped filter 5-15 mm long with a fibrous capsule, an outer cortex of B-cell follicles, a T-cell paracortex and an inner medulla. Several afferent lymphatics enter its convex surface; one or two efferents leave at the hilum.

Function

Drain the little-finger side of the hand and forearm along the basilic vein, then send lymph on to the axillary nodes.

Size

1-3 nodes of 5-8 mm

Clinical note

Enlarged in infections of the hand and in secondary syphilis; classically checked when examining the lymphatic system of the arm.