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The mastoid lymph nodes (retroauricular lymph nodes or posterior auricular glands) are a small group of lymph nodes, usually two in number, located just beneath the ear, on the mastoid insertion of the sternocleidomastoideus muscle, beneath the posterior auricular muscle.
Pseudocyst of the auricle, also known as auricular pseudocyst, endochondral pseudocyst, cystic chondromalacia, intracartilaginous auricular seroma cyst, and benign idiopathic cystic chondromalacia, [1] is a cutaneous condition characterized by a fluctuant, tense, noninflammatory swelling on the upper half of the ear, known as the auricle or pinna.
Each involves the external ear. The difference between them is that a cyst does not connect with the skin, but a sinus does. [ 3 ] Frequency of preauricular sinus differs depending the population: 0.1–0.9% in the US, 0.9% in the UK, and 4–10% in Asia and parts of Africa.
The posterior auricular nerve draws the auricle of the outer ear backwards. [2] This effect is usually very slight, although some people can wiggle their ears due to a more significant muscle movement. [2] Electromyographic signals in humans suggest the posterior auricular muscle may be part of an ancient system for monitoring sounds we can't ...
The posterior auricular nerve is a nerve of the head. It is a branch of the facial nerve (CN VII). It communicates with branches from the vagus nerve, the great auricular nerve, and the lesser occipital nerve. Its auricular branch supplies the posterior auricular muscle, the intrinsic muscles of the auricle, and gives
The symptoms of Frey's syndrome are redness and sweating on the cheek area adjacent to the ear (see focal hyperhidrosis). They can appear when the affected person eats, sees, dreams, thinks about, or talks about certain kinds of food which produce strong salivation. [3] Observing sweating in the region after eating a lemon wedge may be diagnostic.
Auricular eczema is an eczema of the ear that may involve the helix, postauricular fold, and external auditory canal, with the most frequently affected site being the external canal, where it is often a manifestation of seborrheic dermatitis or allergic contact dermatitis. [1] This is an neuroallergic inflammation of skin with evident itch.
Vocal cord nodules are bilaterally symmetrical benign white masses that form at the midpoint of the vocal folds. [1] Although diagnosis involves a physical examination of the head and neck, as well as perceptual voice measures, visualization of the vocal nodules via laryngeal endoscopy remains the primary diagnostic method.