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Preauricular sinuses and preauricular cysts are two common congenital malformations. 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 ...
It is called preauricular sinus which, according to the U.S. National Institutes of Health, or NIH, "generally appears as a tiny skin-lined hole or pit, often just in front of the upper ear...
Vascular anomaly, dermoid cyst, thymic cyst, lymphadenopathy, lymphoma, HPV-related oropharyngeal cancer. Treatment. Conservative, surgical excision. A branchial cleft cyst or simply branchial cyst is a cyst as a swelling in the upper part of neck anterior to sternocleidomastoid.
(Q18.0) Sinus, fistula and cyst of branchial cleft. Congenital preauricular fistula: A small pit in front of the ear. Also known as an ear pit or preauricular sinus. (Q26.6) Portal vein-hepatic artery fistula (Q38.0) Congenital fistula of lip (Q38.4) Congenital fistula of salivary gland (Q42.0) Congenital absence, atresia and stenosis of rectum ...
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Ectodermal dysplasia. A patient displaying peg-shaped teeth and sparse hair characteristic of ectodermal dysplasia. Specialty. Medical genetics. Ectodermal dysplasia ( ED) is a group of genetic syndromes all deriving from abnormalities of the ectodermal structures. [1] : 570 More than 150 different syndromes have been identified.
The several components or degrees of development range from an ear tag, preauricular appendage, preauricular tag, or accessory tragus, to supernumerary ears or polyotia. It is a relatively common congenital anomaly of the first branchial arch or second branchial arches.
preauricular pit; preauricular tag; Darwin's tubercle, protuberance on the anterior helix; hypertrichosis, including hypertrichosis lanuginosa acquisita, a hairy pinna; cauliflower ear, post-traumatic cartilage deformity; tophus, nodule on the pinna related to gout
Congenital dermal sinus; Congenital erosive and vesicular dermatosis; Congenital hypertrophy of the lateral fold of the hallux; Congenital lip pit; Congenital malformations of the dermatoglyphs; Congenital non-progressive hemangioma; Congenital preauricular fistula; Congenital sinus of the lower lip; Congenital smooth muscle hamartoma ...
Urticaria pigmentosa (also known as generalized eruption of cutaneous mastocytosis (childhood type) [1] : 616 ) is the most common form of cutaneous mastocytosis. It is a rare disease caused by excessive numbers of mast cells in the skin that produce hives or lesions on the skin when irritated.