yolk sac carcinoma
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yolk sac tumor — a malignant germ cell tumor of children that represents a proliferation of both yolk sac endoderm and extraembryonic mesenchyme. It is characterized by a labyrinthine glandular pattern with a papillary projection into a sinuslike space;… … Medical dictionary
carcinoma — Any of various types of malignant neoplasm derived from epithelial cells, chiefly glandular (adenocarcinoma) or squamous (squamous cell c.); the most commonly occurring kind of cancer. [G. karkinoma, fr. karkinos, cancer, + oma, tumor] Like other … Medical dictionary
infantile embryonal carcinoma — yolk sac tumor … Medical dictionary
juvenile embryonal carcinoma — yolk sac tumor … Medical dictionary
embryonal carcinoma — n a highly malignant cancer of the testis * * * a highly malignant germ cell tumor that is a primitive form of carcinoma, probably of primitive embryonal cell derivation; it may be found either in pure form or as part of a mixed germ cell tumor… … Medical dictionary
tumor — 1. Any swelling or tumefaction. 2. SYN: neoplasm. 3. One of the four signs of inflammation (t., calor, dolor, rubor) enunciated by Celsus. [L. t., a swelling] acinar cell t. a … Medical dictionary
Alpha-fetoprotein — (AFP) is a molecule produced in the developing embryo and fetus. In humans, AFP levels decrease gradually after birth, reaching adult levels by 8 to 12 months. Normal adult AFP levels are low, but detectable; however, AFP has no known function in … Wikipedia
nonseminoma — A group of testicular cancers that begin in the germ cells (cells that give rise to sperm). Nonseminomas are identified by the type of cell in which they begin and include embryonal carcinoma, teratoma, choriocarcinoma, and yolk sac carcinoma … English dictionary of cancer terms
Teratoma — Classification and external resources Micrograph of a teratoma showing tissue from all three germ layers: mesoderm (immature cartilage left upper corner of image), endoderm (gastrointestinal glands cente … Wikipedia
Germ cell tumor — Classification and external resources Micrograph of a seminoma, a common germ cell tumor. ICD 10 C … Wikipedia
