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 (mĕz′ə-blăst′, mĕs′-)
The middle germinal layer of an early embryo, consisting of undifferentiated cells destined to become the mesoderm.

mes′o·blas′tic adj.
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Adj.1.mesoblastic - relating to or derived from the mesodermmesoblastic - relating to or derived from the mesoderm
References in periodicals archive ?
Amniochorionic mesoblastic fibrous strings and amniotic bands: associated constricting fetal malformations or fetal death.
Other tumors with ETV6-NTRK3 rearrangements include infantile fibrosarcoma and congenital mesoblastic nephroma.
Differentials for a cystic-solid abdominal mass with calcifications in neonates and early infancy include mesoblastic nephroma, neuroblastoma, gastrointestinal stromal tumors, lymphangiomas, and teratomas.
It is to be noted that these fusions have also been observed in other neoplasms such as acute myeloid leukemia, congenital mesoblastic nephroma, and fibrosarcoma, [30] suggesting that the fusion protein has transforming activity in cells of different lineages.
Pediatric non-Wilms' tumours, which are a small part pediatric solid tumours, include clear cell sarcoma of the kidney, mesoblastic nephroma, cystic partially differentiated nephroblastoma, malignant rhabdoid tumour, renal cell carcinoma (RCC), renal medullary carcinoma, intrarenal neuroblastoma, and renal lymphoma.
The differential diagnosis of cystic angiomyolipomas involves distinguishing between mixed epithelial and stromal tumors (previously classified as cystic hamartomas of the renal pelvis, adult mesoblastic nephroma, or renal pelvic or cortical hamartomas), cystic nephroma, multilocular cystic renal cell carcinoma, liposarcoma and vascular malformations.
Cellular mesoblastic nephroma (infantile renal fibrosarcoma): institutional review of the clinical, diagnostic imaging, and pathologic features of a distinctive neoplasm of infancy.
During the study period of 2005 to 2008 there were virtually no other pediatric age group renal tumours like clear cell sarcoma, mesoblastic nephroma, multicystic nephroma etc.
This does not apply to children under 11 months of age, as tumours are then often benign mesoblastic nephromas.
3,7,8) However, several other non-salivary gland neoplasms harbor this rearrangement, including secretory carcinoma of breast, infantile fibrosarcoma, congenital mesoblastic nephroma, and some cases of acute myeloid leukemia.
Mesoblastic nephroma, the most frequent tumour, is a benign, mostly large mesenchymal tumour, which appears as a solid or partially cystic mass, commonly associated with polyhydramnios.