Which lymph node is located just anterior to the ear and commonly involved with ear infections?

Which lymph node is located just anterior to the ear and commonly involved with ear infections?

• A. Preauricular
• B. Posterior auricular
• C. Submental
• D. Superficial cervical

Answer: (A)

Lymph drainage from the ear region centers on the preauricular nodes, which sit just in front of the ear. Because they filter lymph from the external ear and nearby scalp, these nodes are the ones most likely to swell during an ear infection as immune activity concentrates in that area. The other nodes sit in different locations with different drainage patterns: behind the ear are the posterior auricular nodes, which collect from areas behind the ear; under the chin are the submental nodes, draining the lower face and mouth; and the superficial cervical nodes run along the neck and drain superficial neck regions. This is why the preauricular node is the best fit for an infection involving the ear and why it’s the commonly enlarged option in this context.

Lymph drainage from the ear region centers on the preauricular nodes, which sit just in front of the ear. Because they filter lymph from the external ear and nearby scalp, these nodes are the ones most likely to swell during an ear infection as immune activity concentrates in that area.

The other nodes sit in different locations with different drainage patterns: behind the ear are the posterior auricular nodes, which collect from areas behind the ear; under the chin are the submental nodes, draining the lower face and mouth; and the superficial cervical nodes run along the neck and drain superficial neck regions. This is why the preauricular node is the best fit for an infection involving the ear and why it’s the commonly enlarged option in this context.