blastoma

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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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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]
Farlex Partner Medical Dictionary © Farlex 2012

blastoma

(blă-stō′mə)
n. pl. blasto·mas or blasto·mata (-mə-tə)
A neoplasm composed of immature and undifferentiated cells.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Cystic amelo- blastoma: behaviour and treatment of 21 cases.
Pulmonary blastoma in children: report of a rare case and review of the literature.
Aberrant nuclear/cytoplasmic localization and gene mutation of beta-catenin in classic pulmonary blastoma: beta-catenin immunostaining is useful for distinguishing between classic pulmonary blastoma and a blastomatoid variant of carcinosarcoma.
For blastomas and carcinosarcomas, surgical resection is the primary therapeutic modality.
(3,4,26-30,32) Pleomorphic carcinomas (3,4) and blastomas (4,26) are most often situated in the peripheral lung, but chest wall involvement is more characteristic of pleomorphic carcinomas and may be seen in up to 25% of cases (Figure 1).
The prognosis of patients with FA as a whole is considered to be better than that of most other forms of non-small cell carcinoma, including biphasic pulmonary blastoma. According to the previous study, the 10 year survival for WDFA is about 75% versus about 15% for BPB (12, 13) .
Pulmonary blastoma: case report of a patient with a 7-year remission and review of chemotherapy experience in the world literature.
Ovarian sex cord-stromal tumors, pleuropulmonary blastoma and DICER1 mutation: a report from the International Pleuropulmonary Blastoma Registry.
Pleuropulmonary blastoma is an uncommon tumor with type 1 (cystic type) and types 2 and 3 (cystic plus solid and solid types, respectively).
Ciliary body medulloepithelioma: four cases associated with pleuropulmonary blastoma--a report from the International Pleuropulmonary Blastoma Registry [published online ahead of print December 13, 2010].
Five subtypes are recognized: pleomorphic carcinoma, spindle cell carcinoma, giant cell carcinoma, carcinosarcoma, and pulmonary blastoma. (1) Sarcomatoid carcinomas are rare, comprising approximately 1% of all lung malignancies.
The 1981 World Health Organization's Histological Typing of Lung Tumours (12) recognized spindle cell carcinoma as a variant of squamous cell carcinoma; giant cell carcinoma as a variant of large cell carcinoma; and carcinosarcoma and pulmonary blastoma as miscellaneous malignant tumors.