再生不良性の

関: aplastic

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/07/04 00:55:21」(JST)

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Hypoplasia (from ancient Greek ὑπo- hypo-, "under" + πλάσις plasis, "formation"; adjective form hypoplastic) is underdevelopment or incomplete development of a tissue or organ.^[1] Although the term is not always used precisely, it properly refers to an inadequate or below-normal number of cells.^[2] Hypoplasia is similar to aplasia, but less severe. It is technically not the opposite of hyperplasia (too many cells). Hypoplasia is a congenital condition, while hyperplasia generally refers to excessive cell growth later in life. (Atrophy, the wasting away of already existing cells, is technically the direct opposite of both hyperplasia and hypertrophy.)

Hypoplasia can be present in any tissue or organ. It is descriptive of many medical conditions, such as:

Underdeveloped:

Breasts during puberty, which is thought to be congenital but the cause is unknown
tuberous breast, which is different from simple underdevelopment
Testes in Klinefelter's syndrome
Ovaries in Fanconi anemia, gonadal dysgenesis, trisomy X
Thymus in DiGeorge syndrome
Labia majora in popliteal pterygium syndrome
Cerebellum caused by mutation in the Reelin gene
Tooth caused by oral pathology, such as Turner's hypoplasia
Chambers of the heart in hypoplastic left heart syndrome and hypoplastic right heart syndrome
Optic nerve in optic nerve hypoplasia
Sacrum in sacral agenesis
Facial muscle in asymmetric crying facies
Thumb from birth
Lungs, often as a result of oligohydramnios during gestation or the existence of congenital diaphragmatic hernia
Small bowel in Coeliac disease
Fingers and ears in Harlequin type ichthyosis
Mandible in congenital hypothyroidism

References

^ Definition: hypoplasia from Online Medical Dictionary
^ http://activate.lww.com/semdweb/internetsomd/ASP/1527483.asp

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1. 左心低形成症候群 hypoplastic left heart syndrome
2. 新生児におけるチアノーゼの心臓の原因 cardiac causes of cyanosis in the newborn
3. ディジョージ症候群：臨床的特徴および診断 digeorge syndrome clinical features and diagnosis
4. フォンタン術後の患者のマネージメント management of patients post fontan procedure
5. 新生児における先天性心疾患（CHD）：重症ＣＨＤの症状およびスクリーニング congenital heart disease chd in the newborn presentation and screening for critical chd

English Journal

Microform holoprosencephaly with bilateral congenital elbow dislocation; increasing the phenotypic spectrum of Steinfeld syndrome.

Jones GE1, Robertson L2, Maniyar A3, Shammas C4, Phelan MM5, Vasudevan PC1, Tanteles GA6.
American journal of medical genetics. Part A.Am J Med Genet A.2016 Mar;170(3):754-9. doi: 10.1002/ajmg.a.37511. Epub 2016 Jan 5.
Steinfeld syndrome (MIM #184705) was first reported in 1982. It is characterised by holoprosencephaly and limb defects, however other anomalies may also be present. Following the initial description, three further cases have been reported in the literature. We report on a 23-year-old girl, with feat
PMID 26728615

Axial skeletogenesis in human autosomal aneuploidies: A radiographic study of 145 second trimester fetuses.

Castori M1, Servadei F2, Laino L1, Pascolini G1, Fabbri R3, Cifani AE4, Sforzolini GS5, Silvestri E2, Grammatico P1.
American journal of medical genetics. Part A.Am J Med Genet A.2016 Mar;170(3):676-87. doi: 10.1002/ajmg.a.37510. Epub 2015 Dec 21.
Autosomal aneuploidies associate with multiple minor skeletal defects, which, in fetuses, are best appreciated post-mortem after specific anatomic preparations. The present study was aimed to define patterns of skeletal anomalies in autosomal aneuploidies at standard radiology in second trimester fe
PMID 26687031

Dual genetic diagnoses: Atypical hand-foot-genital syndrome and developmental delay due to de novo mutations in HOXA13 and NRXN1.

Wallis M1, Tsurusaki Y2, Burgess T3,4, Borzi P5, Matsumoto N2, Miyake N2, True D6, Patel C1.
American journal of medical genetics. Part A.Am J Med Genet A.2016 Mar;170(3):717-24. doi: 10.1002/ajmg.a.37478. Epub 2015 Nov 21.
We describe a male patient with dual genetic diagnoses of atypical hand-foot-genital syndrome (HFGS) and developmental delay. The proband had features of HFGS that included bilateral vesicoureteric junction obstruction with ectopic ureters, brachydactyly of various fingers and toes, hypoplastic then
PMID 26590955

Japanese Journal

左室低形成症候群に対するカテーテル治療と外科的治療のハイブリッドアプローチ (特集カテーテルインターベンションと麻酔)

大西佳彦
麻酔 61(11), 1216-1220, 2012-11-00
NAID 40019480543

Narrowed Petrous Carotid Canal Detection for the Early Diagnosis of Moyamoya Disease

Motoshima Shigenobu,Noguchi Tomoyuki,Kawashima Masatou,Ooishi Mitsutoshi,Irie Hiroyuki,Nishihara Masashi,Matsushima Toshio,Kudo Sho,元島成信,野口智幸,河島雅到,大石光寿,入江裕之,西原正志,松島俊夫,工藤祥,モトシマシゲノブ,ノグチトモユキ,カワシママサトウ,オオイシミツトシ,イリエヒロユキ,ニシハラマサシ,マツシマトシオ,クドウショウ
福岡医学雑誌 103(10), 206-214, 2012-10-25
… Accordingly, the petrous carotid canals in MMD patients are suspected to be more hypoplastic than those in control subjects. …
NAID 120004929974

再生不良性貧血と低形成MDSの鑑別 : 小児科の立場から (第74回日本血液学会学術集会教育講演特集号) -- (BMF 骨髄不全症候群)

濱麻人,伊藤雅文,小島勢二
臨床血液 53(10), 1485-1491, 2012-10-00
NAID 40019444434

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★リンクテーブル★

リンク元	「aplastic」「再生不良性」
拡張検索	「hypoplastic enamel」「hypoplastic left heart syndrome」「congenital hypoplastic anemia」

「aplastic」

　　[★]

adj.

再生不良性の、形成不全の、無形成の

関: agenesis、aplasia、dysgenesis、hypoplasia、hypoplastic

「再生不良性」

　　[★]

英: aplastic、hypoplastic
関: 形成不全、無形成

「hypoplastic enamel」

　　[★]

エナメル質形成不全、エナメル質形成不全症

関: amelogenesis imperfecta、dental enamel hypoplasia、enamel hypoplasia

「hypoplastic left heart syndrome」

　　[★] 左心低形成症候群 HLHS

「congenital hypoplastic anemia」

　　[★] 先天性再生不良性貧血

[1] Definition: hypoplasia from Online Medical Dictionary

[autogenerated1-2] ttp://activate.lww.com/semdweb/internetsomd/ASP/1527483.asp

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案内

案内

hypoplastic