I-plexus ye-choroid yindawo yengqondo eyenza i-cerebrospinal fluid. I-Cerebrospinal fluid yinto ejikeleze ingqondo kunye nomtya womgca. I-plexus ye-choroid ayiyona indawo yengqondo echaphazelekayo ekucingeni. Ama-cysts e-Choroid ama-cysts aneendawo ezizaliswe ngamanzi e-proidus njenge-blister okanye i-bubbles. I-coroid plexus cysts azikho izicubu okanye umdlavuza, kwaye ziya kutshabalala ngokwazo ziphakathi kweeyure ezingama-24 ukuya kuma-26 zokukhulelwa.
Ama-cysts e-Choroid e-kroids, kwaye ngokwawo, AYINYE ingxaki kwaye awaphazamisi umsebenzi wengqondo.
Ziyabonwa malunga ne-1% (1/100) yazo zonke i-second-trimester ultrasounds. Ama-cysts e-Choroid angabonwa ngenye indlela okanye emacaleni omabini wengqondo kwaye inani, ubukhulu kunye nokubunjwa kwe-cysts kuyahluka. Ama-cysts e-Choroid abuye afunyanwe kubantwana abadala kunye nabantu abadala. Nangona bevakalayo bekrakra, abahambelani naluphi na ukuphazamiseka emsebenzini wengqondo. Ukukhathazeka okukhulu nge-choroid plexus cysts kukuba ukuba "yi-marker soft" ye- Down syndrome . "I-marker soft" yinto ephakathi kwayo kwaye ayiyi kubangela umntwana wakho ingxaki, kodwa ingabonisa ukuba umntwana unesimo esibi kakhulu. Amanye amanqaku athambileyo we-Down syndrome afaka ukulinganisa kwe-femur efutshane, i-renal dilatation, i-ealgenic foci entliziyweni, ukwanda kwe-fetal nuchal translucency (indawo engasemva kwentamo), kunye nethambo elingekho emzimbeni kwi-trimester yokuqala .
I-ultrasound ngexesha lokukhulelwa kunye ne-Choroid Plexus Cysts
I-ultrasound ngumvavanyo owenziwe ngexesha lokukhulelwa. Isebenzisa amaza omsindo ukujonga okanye ukujonga ngeso lengqondo intsana ngexesha lokukhulelwa. Akukho mngcipheko kumntwana unxulumene ne-ultrasound ngexesha lokukhulelwa kwaye abaninzi abafazi baya kuba neyodwa okanye amabini ama-ultrasound, ngezizathu ezahlukeneyo, ngaphezu kwexesha lokukhulelwa kwabo.
Kungenzeka ukuba i-cyroid ye-plexus cysts iyinto evamile kuwe umntwana kwaye uya kuba nomntwana oqhelekileyo, onempilo. Nangona kunjalo, abanye abaphandi baye babona ubudlelwane phakathi kwala ma-cysts kunye ne-chromosome engaqhelekanga njengo-Down syndrome kunye ne- trisomy 18 . Xa i-kroid plexus cysts kunye / okanye ezinye iimpawu zibonwa kwi-ultrasound, unokunikezwa ukuvavanya okuqhubekayo njengqanaba 2 okanye i-ultrasound ecacileyo, okanye i-amniocentesis.
Yintoni Enokuthi Ingane Inayo I-Down Syndrome okanye i-Trisomy 18?
Ilungelo lokuba umntwana osemva kunye ne-plexus cyst (s) ene-chromosome engaqhelekanga ivakalelwa ukuba ibe malunga ne-1% okanye ngaphantsi xa ukuhlolwa kokuhlolwa kwe-ultrasound kuqhelekile. Oku kuthetha ukuba kukho i-99% okanye ithuba elikhulu lokuba umntwana akanalo i-chromosome engavamile. Abanye abaphandi baye babika ingozi ephezulu kune-1% kwaye abanye babubonanga ubudlelwane phakathi kwala ma-cyst kunye ne-chromosome engafanelekiyo. Kungcono ukuxoxa ngale ndlela yokufumana i-ultrasound kunye nomngcipheko wakho nodokotela wakho.
Ngaba i-Down Syndrome kunye nezinye iifrimi ziyafumaneka kwi-ultrasound?
I-Ultrasound ivumela ugqirha ukuba acingisise umntwana kunye nokufumana amanqaku athile angabonisa ingozi eyongeziweyo, kodwa i-ultrasound yodwa ayinakuze ixilongwe nge-chromosome engaqhelekanga njenge-Down syndrome okanye i-trisomy 18.
Indlela yodwa yokwenza ukuxilongwa kwe-Down syndrome okanye enye i-chromosome engaqhelekanga ekukhulelweni kukuhlolwa kwe-amniocentesis.
Kubalulekile ukukhumbula ukuba ngelixa i-ultrasound ayikwazi ukuxilonga i-Down syndrome okanye enye i-chromosomes engaqhelekanga, i-ultrasound evamile iyasiqinisekisa kodwa ayikho isiqinisekiso apho umntwana usempilweni. Akukho mvavanyo yokubeleka engakwazi ukulawula zonke iziphoso zokuzalwa okanye iintlobo zokulinda kwengqondo.
I-Chromosome engaqhelekanga ifunyaniswe njani ngexesha lokukhulelwa?
Indlela yodwa yokuxelela ukuba umntwana ophethe i-chromosome engaqhelekanga njenge-Down syndrome okanye i-trisomy 18 ukwenza i-amniocentesis edlalwa kwi-trimester yesibini.
Ngethuba le-amniocentesis, inaliti encomekileyo ifakwe kwisalathisi sesisu somfazi kwisisu kwaye isixa esincinci sogqityi olujikeleze umntwana lususwe. Ama-chromosomes e-fetal afundiswa ngokusebenzisa uvavanyo lwe-FISH kunye / okanye uvavanyo lwekaryotype . Iziphumo ezivela kuvavanyo lwe-FISH, ngelixa lilinganiselwe, zihlala zifumaneka kwiintsuku ezi-3 ukuya kwezi-4 kwaye iziphumo zohlalutyo olupheleleyo lwekaryotype zithatha iiveki ezimbini. Iziphumo zolu vavanyo zingaphezulu kwe-99% ezichanekileyo ekufumaneni i-Down syndrome kunye nezinye izifo.
Ngenxa yokuba i-proidus cysts ayibonakali kwaze kwaba yimizuzu yesibini yokukhulelwa, ukuhlolwa kwe-CVS (okwenziwe kwi-trimester yokuqala yokukhulelwa) akuyiyo inketho. Ukuba unesivivinyo esiqhelekileyo seCVS, ke akukho sizathu sokukhathazeka malunga nokufumanisa i-kroid plexus cysts kwi-ultrasound yakho. I-kroid ye-plexus cyst ke ithathwa njengento eqhelekileyo yomntu engaziwa ukuba yingozi kumntwana.
Ukuba unquma ukwenza i-amniocentesis kwaye iziphumo ziqhelekileyo, akukho mfuneko yokuvavanya kuyimfuneko. I-kroid ye-plexus cyst ke ithathwa njengento eqhelekileyo yomntu engaziwa ukuba yingozi kumntwana.
Ngaphantsi
I-coroid plexus cysts, ngelixa livakala ngokukrakra, yinto eqhelekileyo yokufumana i-ultrasound. Ngokuqhelekileyo bafumana ukufumana okuqhelekileyo okungekho kubaluleka kokukhulelwa. Ngokuqhelekileyo (ngaphantsi kwe-1% yexesha), bangaba ngummakishi ukuba umntwana ongumntwana unesimo esingaqhelekanga se-chromosome efana ne-Down syndrome okanye i-trisomy 18. Ukuba i-coroid plexus cysts ibonakala kwi-ultrasound yakho, kufuneka uxoxe nale ngxaki kunye nodokotela wakho. okanye umcebisi wezofuzo ukuze ubone ukuba yintoni umngcipheko wakho kwaye uxoxe ngezinye iindlela zokuhlola xa kufanelekile.
Imithombo:
> Newberger, D., Down Syndrome: UkuVavanywa koKhuseleko lweNtsholongwane kunye nokuHlola. WaseMerika ugqirha. 2001.
> Ikomiti ye-ACOG kwi-Practice Bulletins. I-ACOG Yenza i-Bulletin No. 77: Ukuhlolwa kwe-chromosomal fetal. Gstecol Obstet. 2007 Jan; 109 (1): 217-27.