Which of the following is not a swelling in midline:
The common swellings in the midline are:

Submental lymph nodes
Thyroid gland enlargement
Thyroglossal cyst
Sublingual dermoid
Lipoma

Common lateral swellings in the neck are:

Lymph node swelling
Salivary gland enlargement
Thyroid enlargement
Branchial cyst
Lipoma
Thyroglossal cyst.
Sublingual dermoid.
Branchial cyst.
Submental lymph nodes enlargement.