papillary tumor


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pap·il·lo·ma

(pap'i-lō'mă),
A circumscribed, benign epithelial tumor projecting from the surrounding surface; more precisely, a benign epithelial neoplasm consisting of villous or arborescent outgrowths of fibrovascular stroma covered by neoplastic cells.
Synonym(s): papillary tumor
[papilla + G. -oma, tumor]

papillary tumor

See papilloma.

pap·il·lo·ma

(pap'i-lō'mă)
A circumscribed benign epithelial tumor projecting from the surrounding surface and consisting of villous or arborescent outgrowths of fibrovascular stroma covered by neoplastic cells.
Synonym(s): papillary tumor, villoma.
[papilla + G. -oma, tumor]

papillary tumor

A neoplasm composed of or resembling enlarged papillae.
See: papilloma
See also: tumor
References in periodicals archive ?
Aggressive papillary tumor of middle ear/temporal bone and adnexal papillary cystadenoma.
Occasionally, association of non-clear cell tumors with sarcomatoid carcinoma has led to the presumption that the former dedifferentiates to form the latter Genetic studies designed to trace the origin of SRCC in association with papillary tumors are limited to 3 case reports,[14,16] with 2 reports[14,15] suggesting a clear cell origin and all 3 failing to confirm a papillary derivation.
Molecular genetic evidence for the independent origin of multifocal papillary tumors in patients with papillary renal cell carcinomas.
Bladder tumors fall into two broad categories characterized by low-grade papillary tumors, which are usually superficial, and high-grade tumors that are often invasive.
Upon further evaluation, we found that 12% of our VHL patients develop malignant papillary tumors in the inner ear.
In some cases, serous papillary tumors of the testis and epididymis, particularly those that are borderline tumors of the tunica vaginalis or serous carcinoma of the testis, may be confused with malignant mesothelioma of the tunica vaginalis testis.
For the papillary tumors, 35% to 95% of tumor cells were positive (mean, 64%), with at least 2+ intensity (Figure 3, A and B).
Computational analysis of the expression profiles of class 1 versus class 2 papillary tumors demonstrated distinct patterns of gene expression, thereby allowing accurate discrimination between class 1 and class 2 tumors.
Intraductal papillary tumors of the breast: a study of 78 cases.
Intraductal papillary tumors and mucinous cystic tumors of the pancreas: clinicopathologic study of 38 cases.
1,2,4] In our case, the oncocytic solid tumor did not exhibit any nuclear characteristics of papillary carcinoma, and the papillary tumors did not show Hurthle cell features.