submandibular triangle

There summarizes the important structures found in the submandibular triangle:

It is a triangle contained within the Submandibular triangle.

Region I: Submental and submandibular triangles.

The space corresponds to the anatomic region termed the submandibular triangle, part of the anterior triangle of the neck.

The submandibular triangle (or submaxillary or digastric triangle) corresponds to the region of the neck immediately beneath the body of the mandible.

It does not include removal of the suboccipital nodes, periparotid nodes except for infraparotid nodes located in the posterior aspect of the submandibular triangle, buccal nodes, retropharyngeal nodes, or paratracheal nodes.

Neoplasms, such as metastatic squamous cell carcinoma to the submandibular lymph nodes or a salivary gland tumour, could create a similar appearance but rarely have such well defined borders and can usually be palpated in the floor of the mouth or submandibular triangle of the neck as a hard mass.