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Abnormality of the crus of the helix

MedGen UID:
867022
•Concept ID:
C4021380
•
Anatomical Abnormality
Synonym: Abnormality of the crus of the ear
 
HPO: HP:0009895

Definition

An abnormality of the crus of the helix, which is the horizontal piece of cartilage located outside the ear canal that divides the upper and lower parts of the ear. [from HPO]

Professional guidelines

PubMed

Variant Types of Preauricular Sinuses: Classifications, Clinical Presentation and Management.
Chen J, Zhou P, Zuo J, Ming W, Huang T, Tao Z
Laryngoscope 2024 Aug;134(8):3839-3845. Epub 2024 Mar 11 doi: 10.1002/lary.31378. PMID: 38466172

Recent clinical studies

Etiology

Variant Types of Preauricular Sinuses: Classifications, Clinical Presentation and Management.
Chen J, Zhou P, Zuo J, Ming W, Huang T, Tao Z
Laryngoscope 2024 Aug;134(8):3839-3845. Epub 2024 Mar 11 doi: 10.1002/lary.31378. PMID: 38466172
Ear Reconstruction: Empirical Data of 406 Cases of Carving the Convex Structures of the Framework.
Li D, Zhang R, Xu Z, Zhang Q, Xu F, Li Y, Chen X, Hou R
Laryngoscope 2023 Mar;133(3):569-575. Epub 2022 Aug 1 doi: 10.1002/lary.30319. PMID: 35912941
Congenital periauricular fistulas: possible variants of the preauricular sinus.
Kim JR, Kim DH, Kong SK, Gu PM, Hong TU, Kim BJ, Heo KW
Int J Pediatr Otorhinolaryngol 2014 Nov;78(11):1843-8. Epub 2014 Aug 15 doi: 10.1016/j.ijporl.2014.08.005. PMID: 25190621
Another TWIST on Baller-Gerold syndrome.
Seto ML, Lee SJ, Sze RW, Cunningham ML
Am J Med Genet 2001 Dec 15;104(4):323-30. doi: 10.1002/ajmg.10065. PMID: 11754069
Sonographic appearances of preauricular sinus.
Ahuja AT, Marshall JN, Roebuck DJ, King AD, Metreweli C
Clin Radiol 2000 Jul;55(7):528-32. doi: 10.1053/crad.1999.0479. PMID: 10924376

Diagnosis

Variant Types of Preauricular Sinuses: Classifications, Clinical Presentation and Management.
Chen J, Zhou P, Zuo J, Ming W, Huang T, Tao Z
Laryngoscope 2024 Aug;134(8):3839-3845. Epub 2024 Mar 11 doi: 10.1002/lary.31378. PMID: 38466172
New methods for specialized subjective and high-precision objective evaluation of constricted ears: A pilot study.
Wang D, Pan B, Lin L, Yang Q, He L, Song Y, Zhou J, Jiang H
Medicine (Baltimore) 2018 Nov;97(45):e12997. doi: 10.1097/MD.0000000000012997. PMID: 30407288Free PMC Article
Phenotypic sub-grouping in microtia using a statistical and a clinical approach.
Luquetti DV, Saltzman BS, Heike CL, Sie KC, Birgfeld CB, Evans KN, Leroux BG
Am J Med Genet A 2015 Apr;167A(4):688-94. Epub 2015 Feb 5 doi: 10.1002/ajmg.a.36963. PMID: 25655944Free PMC Article
Detailed assessment of the ear in Cornelia de Lange syndrome: comparison with a control sample using the new dysmorphology guidelines.
Hunter AG, Collins JS, Deardorff MA, Krantz ID
Am J Med Genet A 2009 Oct;149A(10):2181-92. doi: 10.1002/ajmg.a.33073. PMID: 19764039Free PMC Article
Sonographic appearances of preauricular sinus.
Ahuja AT, Marshall JN, Roebuck DJ, King AD, Metreweli C
Clin Radiol 2000 Jul;55(7):528-32. doi: 10.1053/crad.1999.0479. PMID: 10924376

Prognosis

Different Methods of Fabricating Cartilaginous Ear Framework in Children With Microtia According to the Length of the Eighth Costal Cartilage Intraoperatively.
Yan H, Zhang G, Liu W, Wang N, Liu Z
J Craniofac Surg 2019 Jul;30(5):1425-1429. doi: 10.1097/SCS.0000000000005282. PMID: 31299736
New methods for specialized subjective and high-precision objective evaluation of constricted ears: A pilot study.
Wang D, Pan B, Lin L, Yang Q, He L, Song Y, Zhou J, Jiang H
Medicine (Baltimore) 2018 Nov;97(45):e12997. doi: 10.1097/MD.0000000000012997. PMID: 30407288Free PMC Article
Congenital periauricular fistulas: possible variants of the preauricular sinus.
Kim JR, Kim DH, Kong SK, Gu PM, Hong TU, Kim BJ, Heo KW
Int J Pediatr Otorhinolaryngol 2014 Nov;78(11):1843-8. Epub 2014 Aug 15 doi: 10.1016/j.ijporl.2014.08.005. PMID: 25190621
Another TWIST on Baller-Gerold syndrome.
Seto ML, Lee SJ, Sze RW, Cunningham ML
Am J Med Genet 2001 Dec 15;104(4):323-30. doi: 10.1002/ajmg.10065. PMID: 11754069
An operation for Stahl's ear.
Ono I, Gunji H, Tateshita T
Br J Plast Surg 1996 Dec;49(8):564-7. doi: 10.1016/s0007-1226(96)90135-6. PMID: 8976750

Clinical prediction guides

Different Methods of Fabricating Cartilaginous Ear Framework in Children With Microtia According to the Length of the Eighth Costal Cartilage Intraoperatively.
Yan H, Zhang G, Liu W, Wang N, Liu Z
J Craniofac Surg 2019 Jul;30(5):1425-1429. doi: 10.1097/SCS.0000000000005282. PMID: 31299736
New methods for specialized subjective and high-precision objective evaluation of constricted ears: A pilot study.
Wang D, Pan B, Lin L, Yang Q, He L, Song Y, Zhou J, Jiang H
Medicine (Baltimore) 2018 Nov;97(45):e12997. doi: 10.1097/MD.0000000000012997. PMID: 30407288Free PMC Article
Surgical correction of constricted ear combined with Stahl's ear.
Bi Y, Lin L, Yang Q, Pan B, Zhao Y, He L, Jiang H
J Plast Reconstr Aesthet Surg 2015 Jul;68(7):895-901. Epub 2015 Apr 3 doi: 10.1016/j.bjps.2015.03.026. PMID: 25921912
Interrater reliability of a phenotypic assessment tool for the ear morphology in microtia.
Luquetti DV, Saltzman BS, Sie KC, Birgfeld CB, Leroux BG, Evans KN, Smartt JM Jr, Tieu DD, Dudley DJ, Heike CL
Am J Med Genet A 2013 Jun;161A(6):1264-72. Epub 2013 Apr 24 doi: 10.1002/ajmg.a.35963. PMID: 23616389Free PMC Article

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