blastoma

(redirected from blastomas)
Also found in: Dictionary, Thesaurus, Encyclopedia.

blastoma

 [blas-to´mah] (pl. blastomas, blasto´mata)
A neoplasm composed of embryonic cells derived from the blastema of an organ or tissue. adj., adj blasto´matous.

blas·to·ma

(blas-tō'mă),
A neoplasm composed chiefly or entirely of immature undifferentiated cells resembling those that form the blastema or primordium of the organ in which the tumor arose.
[blasto- + G. -oma, tumor]

blastoma

/blas·to·ma/ (blas-to´mah) pl. blastomas, blasto´mata   a neoplasm composed of embryonic cells derived from the blastema of an organ or tissue.blasto´matous

blastoma

(blă-stō′mə)
n. pl. blasto·mas or blasto·mata (-mə-tə)
A neoplasm composed of immature and undifferentiated cells.

blastoma

[blastō′mə] pl. blastomas, blastomata
Etymology: Gk, blastos + oma, tumor
a neoplasm of embryonic tissue that develops from the blastema of an organ or tissue. A blastoma derived from a number of scattered cells is pluricentric; one arising from a single cell or group of cells is unicentric. Also called blastocytoma. blastomatous [blastom′ətəs] adj.

blastoma

(1) A generic root form for any of a number of primitive tumours—e.g., ameloblastoma, glioblastoma, neuroblastoma, osteoblastoma, retinoblastoma.
(2) A nonspecific term for any tumour composed of primitive cells.
(3) Neoplasm.

blas·to·ma

(blas-tō'mă)
A neoplasm composed chiefly or entirely of immature undifferentiated cells (i.e., blast forms), with little or virtually no stroma.
Synonym(s): blastocytoma.
[blasto- + G. -oma, tumor]

blastoma

a neoplasm composed of embryonic cells derived from the blastema of an organ or tissue.
References in periodicals archive ?
Pulmonary blastoma needs to be distinguished from pleuropulmonary blastoma (PPB), which is a malignant neoplasm of childhood presenting in the lung and/or pleura.
Histologic features that allow for separation of pleomorphic carcinoma from spindle cell carcinoma, giant cell carcinoma, carcinosarcoma, and blastoma are summarized in Table 1.
Clonality and heterogeneity of pulmonary blastoma from the viewpoint of genetic alterations: a case report.
Pulmonary blastoma, carcinosarcoma and spindle-cell carcinoma: an immunohistochemical study of keratin intermediate filaments.
Primary mixed malignancies of lung: carcinosarcoma and blastoma.
Diagnosis of pulmonary blastoma by fine-needle aspiration biopsy: cytologic and immunocytochemical findings.
Pulmonary blastoma with malignant melanoma component.
Pulmonary blastoma with neuroendocrine differentiation in cell morules resembling neuroepithelial bodies.
Type I pleuropulmonary blastoma: pathology and biology study of 51 cases from the international pleuropulmonary blastoma registry.
Type I pleuro pulmonary blastoma: a report from the International Pleuropulmonary Blastoma Registry.
Pleuropulmonary blastoma: the so-called pulmonary blastoma of childhood.