Merkel hlwb nyob hauv txheej ntawm cov hlwb basal ntawm qhov tob tshaj plaws ntawm cov epidermis thiab txuas nrog paj hlwb.
Merkel cov hlwb pib qhov twg?
Lub hauv paus chiv keeb ntawm Merkel hlwb tsis meej, vim lawv qhia ob qho tib si epidermal thiab neuroendocrine nta. Kev tshawb fawb qhia tias lawv tuaj yeem muab tau los ntawm pluripotential qia hlwb ntawm dermis lossis, ua lwm txoj hauv kev, los ntawm neural crest cells. Cov ntaub ntawv cytologic thiab immunohistochemical txhawb ob qhov kev sib cav.
Dab tsi txheej ntawm epidermis yuav cuam tshuam los ntawm Merkel cell carcinoma?
Merkel hlwb tsis tshua muaj thiab pom muaj nyob hauv txheej basal ntawm epidermis thiab nyob ib ncig ntawm thaj tsam ntawm cov hauv paus plaub hau.
Merkel cell muaj nyob qhov twg?
Merkel hlwb yog nonndendritic, nonkeratinocytic epithelial hlwb nyob feem ntau nyob rau hauv los yog ze rau lub basal txheej ntawm cov epidermis. Ob peb ntawm cov hlwb no kuj pom muaj nyob rau hauv lub dermis thiab feem ntawm ectodermally derived mucosa.
Langerhans thiab Merkel hlwb nyob qhov twg?
cell hom: Merkel hlwb thiab Langerhans hlwb. Merkel hlwb tsim ib feem ntawm cov qauv kev xav. Langerhans hlwb yog dendritic tab sis unpigmented thiab pom ze ntawm daim tawv nqaij tshaj melanocytes. Tom qab ib puas xyoo ntawm cov lus nug txog lawv lub hom phiaj, tam sim no nws yog tseeb hais tias lawv muaj ib tug tseem ceeb immunologic muaj nuj nqi.
