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The most common causes of enlargement of the submandibular lymph nodes are infections of the head, neck, ears, eyes, nasal sinuses, pharynx, and scalp. [1] The lymph glands may be affected by metastatic spread of cancers of the oral cavity, anterior portion of the nasal cavity, soft tissues of the mid-face, and submandibular salivary gland. [1]
The submandibular space is a fascial space of the head and neck (sometimes also termed fascial spaces or tissue spaces). It is a potential space , and is paired on either side, located on the superficial surface of the mylohyoid muscle between the anterior and posterior bellies of the digastric muscle . [ 1 ]
Fascial spaces (also termed fascial tissue spaces [1] or tissue spaces [2]) are potential spaces that exist between the fasciae and underlying organs and other tissues. [3] In health, these spaces do not exist; they are only created by pathology, e.g. the spread of pus or cellulitis in an infection.
The following summarizes the important structures found in the submandibular triangle: 1. The external and internal carotid artery; 2. The internal jugular vein; 3. The deep cervical lymph nodes; 4. The 10th cranial nerve ( Vagus Nerve ) 5. The submandibular gland; 6. The submandibular lymph nodes; 7. The Facial artery and vein; 8.
Ranula in a female. A ranula usually presents as a translucent, blue, dome-shaped, fluctuant swelling in the tissues of the floor of the mouth. If the lesion is deeper, then there is a greater thickness of tissue separating from the oral cavity and the blue translucent appearance may not be a feature.
The submasseteric space is sometimes involved by the spread of odontogenic infections, such as a pericoronal abscess associated with an impacted mandibular third molar (lower wisdom tooth) when the apices of the tooth lie very close to or within the space.
Ludwig's angina is a form of severe, widespread cellulitis of the floor of the mouth, usually with bilateral involvement. Infection is usually primarily within the submandibular space, and the sublingual and submental spaces can also be involved.
Benign tumour of the submandibular gland, also known as pleomorphic adenoma, presented as a painless neck mass in a 40-year-old man. At the left of the image is the white tumor with its characteristic cartilaginous cut surface. To the right is the normally lobated submandibular salivary gland. Benign epithelial tumors. Pleomorphic adenoma ...