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Microcephaly 21, primary, autosomal recessive(MCPH21)

MedGen UID:
1646916
Concept ID:
C4693831
Disease or Syndrome
Synonyms: MCPH21; MICROCEPHALY 21, PRIMARY, AUTOSOMAL RECESSIVE
 
Gene (location): NCAPD2 (12p13.31)
 
Monarch Initiative: MONDO:0054804
OMIM®: 617983

Clinical features

From HPO
Small for gestational age
MedGen UID:
65920
Concept ID:
C0235991
Finding
Smaller than normal size according to sex and gestational age related norms, defined as a weight below the 10th percentile for the gestational age.
Short stature
MedGen UID:
87607
Concept ID:
C0349588
Finding
A height below that which is expected according to age and gender norms. Although there is no universally accepted definition of short stature, many refer to "short stature" as height more than 2 standard deviations below the mean for age and gender (or below the 3rd percentile for age and gender dependent norms).
Intellectual disability, moderate
MedGen UID:
7680
Concept ID:
C0026351
Mental or Behavioral Dysfunction
Moderate mental retardation is defined as an intelligence quotient (IQ) in the range of 35-49.
Autistic behavior
MedGen UID:
163547
Concept ID:
C0856975
Mental or Behavioral Dysfunction
Persistent deficits in social interaction and communication and interaction as well as a markedly restricted repertoire of activity and interest as well as repetitive patterns of behavior.
Absent speech
MedGen UID:
340737
Concept ID:
C1854882
Finding
Complete lack of development of speech and language abilities.
Primary microcephaly
MedGen UID:
383046
Concept ID:
C2677180
Finding
Head circumference below 2 standard deviations below the mean for age and gender at birth.
Sloping forehead
MedGen UID:
346640
Concept ID:
C1857679
Finding
Inclination of the anterior surface of the forehead from the vertical more than two standard deviations above the mean (objective); or apparently excessive posterior sloping of the forehead in a lateral view.

Professional guidelines

PubMed

Braun DA, Rao J, Mollet G, Schapiro D, Daugeron MC, Tan W, Gribouval O, Boyer O, Revy P, Jobst-Schwan T, Schmidt JM, Lawson JA, Schanze D, Ashraf S, Ullmann JFP, Hoogstraten CA, Boddaert N, Collinet B, Martin G, Liger D, Lovric S, Furlano M, Guerrera IC, Sanchez-Ferras O, Hu JF, Boschat AC, Sanquer S, Menten B, Vergult S, De Rocker N, Airik M, Hermle T, Shril S, Widmeier E, Gee HY, Choi WI, Sadowski CE, Pabst WL, Warejko JK, Daga A, Basta T, Matejas V, Scharmann K, Kienast SD, Behnam B, Beeson B, Begtrup A, Bruce M, Ch'ng GS, Lin SP, Chang JH, Chen CH, Cho MT, Gaffney PM, Gipson PE, Hsu CH, Kari JA, Ke YY, Kiraly-Borri C, Lai WM, Lemyre E, Littlejohn RO, Masri A, Moghtaderi M, Nakamura K, Ozaltin F, Praet M, Prasad C, Prytula A, Roeder ER, Rump P, Schnur RE, Shiihara T, Sinha MD, Soliman NA, Soulami K, Sweetser DA, Tsai WH, Tsai JD, Topaloglu R, Vester U, Viskochil DH, Vatanavicharn N, Waxler JL, Wierenga KJ, Wolf MTF, Wong SN, Leidel SA, Truglio G, Dedon PC, Poduri A, Mane S, Lifton RP, Bouchard M, Kannu P, Chitayat D, Magen D, Callewaert B, van Tilbeurgh H, Zenker M, Antignac C, Hildebrandt F
Nat Genet 2017 Oct;49(10):1529-1538. Epub 2017 Aug 14 doi: 10.1038/ng.3933. PMID: 28805828Free PMC Article

Recent clinical studies

Etiology

Spiegel R, Schwahn BC, Squires L, Confer N
J Inherit Metab Dis 2022 May;45(3):456-469. Epub 2022 Mar 3 doi: 10.1002/jimd.12488. PMID: 35192225Free PMC Article
Hall JG
Gene 2013 Oct 1;528(1):55-7. Epub 2013 Apr 10 doi: 10.1016/j.gene.2013.03.081. PMID: 23583796

Diagnosis

Spiegel R, Schwahn BC, Squires L, Confer N
J Inherit Metab Dis 2022 May;45(3):456-469. Epub 2022 Mar 3 doi: 10.1002/jimd.12488. PMID: 35192225Free PMC Article
Shaheen R, Maddirevula S, Ewida N, Alsahli S, Abdel-Salam GMH, Zaki MS, Tala SA, Alhashem A, Softah A, Al-Owain M, Alazami AM, Abadel B, Patel N, Al-Sheddi T, Alomar R, Alobeid E, Ibrahim N, Hashem M, Abdulwahab F, Hamad M, Tabarki B, Alwadei AH, Alhazzani F, Bashiri FA, Kentab A, Şahintürk S, Sherr E, Fregeau B, Sogati S, Alshahwan SAM, Alkhalifi S, Alhumaidi Z, Temtamy S, Aglan M, Otaify G, Girisha KM, Tulbah M, Seidahmed MZ, Salih MA, Abouelhoda M, Momin AA, Saffar MA, Partlow JN, Arold ST, Faqeih E, Walsh C, Alkuraya FS
Genet Med 2019 Mar;21(3):545-552. Epub 2018 Sep 14 doi: 10.1038/s41436-018-0140-3. PMID: 30214071Free PMC Article
Marchal JA, Ghani M, Schindler D, Gavvovidis I, Winkler T, Esquitino V, Sternberg N, Busche A, Krawitz P, Hecht J, Robinson P, Mundlos S, Graul-Neumann L, Sperling K, Trimborn M, Neitzel H
Cell Cycle 2011 Sep 1;10(17):2967-77. doi: 10.4161/cc.10.17.16871. PMID: 21857152

Prognosis

Spiegel R, Schwahn BC, Squires L, Confer N
J Inherit Metab Dis 2022 May;45(3):456-469. Epub 2022 Mar 3 doi: 10.1002/jimd.12488. PMID: 35192225Free PMC Article
Genin A, Desir J, Lambert N, Biervliet M, Van Der Aa N, Pierquin G, Killian A, Tosi M, Urbina M, Lefort A, Libert F, Pirson I, Abramowicz M
Hum Mol Genet 2012 Dec 15;21(24):5306-17. Epub 2012 Sep 13 doi: 10.1093/hmg/dds386. PMID: 22983954
Gul A, Tariq M, Khan MN, Hassan MJ, Ali G, Ahmad W
J Neurogenet 2007 Jul-Sep;21(3):153-63. doi: 10.1080/01677060701508594. PMID: 17849285

Clinical prediction guides

Venkatesh T, Nagashri MN, Swamy SS, Mohiyuddin SM, Gopinath KS, Kumar A
PLoS One 2013;8(3):e54643. Epub 2013 Mar 5 doi: 10.1371/journal.pone.0054643. PMID: 23472065Free PMC Article
Genin A, Desir J, Lambert N, Biervliet M, Van Der Aa N, Pierquin G, Killian A, Tosi M, Urbina M, Lefort A, Libert F, Pirson I, Abramowicz M
Hum Mol Genet 2012 Dec 15;21(24):5306-17. Epub 2012 Sep 13 doi: 10.1093/hmg/dds386. PMID: 22983954
Marchal JA, Ghani M, Schindler D, Gavvovidis I, Winkler T, Esquitino V, Sternberg N, Busche A, Krawitz P, Hecht J, Robinson P, Mundlos S, Graul-Neumann L, Sperling K, Trimborn M, Neitzel H
Cell Cycle 2011 Sep 1;10(17):2967-77. doi: 10.4161/cc.10.17.16871. PMID: 21857152
Gul A, Tariq M, Khan MN, Hassan MJ, Ali G, Ahmad W
J Neurogenet 2007 Jul-Sep;21(3):153-63. doi: 10.1080/01677060701508594. PMID: 17849285

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