Molekulaarbioloogia praksi kontrolltöö vastused
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Neuroblastoom-med närvirakk-kasvaja.
Malignant tumor containing embryonic nerve cells; usually metastasizes quickly.
http://www.cancer.gov/cancerinfo/pdq/treatment/neuroblastoma/healthprofessional/
Neuroblastoma is predominantly a tumor of early childhood, with two thirds of the cases
presenting in children younger than 5 years. In rare cases, neuroblastoma can be
discovered prenatally by fetal ultrasonography. Neuroblastoma originates in the adrenal
medulla or the paraspinal sites where sympathetic nervous system tissue is present. The
most common symptoms are due to a tumor mass or to bone pain from metastases.
Proptosis and periorbital ecchymosis are common and arise from retrobulbar metastasis.
Extensive bone marrow metastasis may result in pancytopenia. Abdominal distention
with respiratory compromise due to massive liver metastases occurs in infants. Because
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