sarcomatoid carcinoma

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spin·dle cell car·ci·no·ma

a carcinoma composed of elongated cells, frequently a poorly differentiated squamous cell carcinoma that may be difficult to distinguish from a sarcoma.

spindle cell carcinoma

A carcinoma—often squamous cell—which can occur on any epithelial surface (e.g., oral, anorectal, bladder, etc). The cells are spindled, simulate a sarcoma (but stain for cytokeratin), and usually are more aggressive than non-spindle cell carcinomas.

sarcomatoid carcinoma

An epithelial malignancy that can arise in any epithelial surface–eg, oral, anorectal, bladder, etc; the cells are spindled and simulate a sarcoma Diagnosis Keratin ID's by immunohistochemistry

sarcomatoid carcinoma

A carcinoma that contains both epithelial and mesenchymal components. This cancer may arise from cells in the kidney, urinary bladder, or lung.
See also: carcinoma
References in periodicals archive ?
Surgical management of gallbladder sarcomatoid carcinoma.
8,11) In addition to homozygous deletion, one-fourth of sarcomatoid carcinomas had hemizygous deletion only.
Sarcomatoid Carcinoma of the Bladder is a very lethal and aggresive tumor with poor prognosis and more vigorous treatment protocols should be applied in such patients.
Collina and colleagues reported the first case of primary sarcomatoid carcinoma of the adrenal gland in 1989.
36,37) Immunohistochemistry was introduced for the first time in the 1999 WHO classification for 3 main tumors: (1) large cell neuroendocrine carcinoma, (2) sarcomatoid carcinomas, and (3) separation of malignant mesothelioma from carcinoma.
Hyams reported 39 cases of laryngeal sarcomatoid carcinoma.
Giant sarcomatoid carcinoma with spontaneous vesical rupture: a case report.
The cytological atypia of sarcomatoid carcinoma excludes non-neoplastic lesions, such as the postoperative spindle cell nodule and inflammatory pseudotumour.
The frequent presence of squamous cell carcinoma or adenocarcinoma in association with undifferentiated sarcomatoid carcinoma also supports the hypothesis of tumor progression/dedifferentiation in these cases.
Sarcomatoid MM must be distinguished from sarcoma (primary or secondary) and metastatic sarcomatoid carcinoma.
The plasmacytoid urothelial carcinomas are poorly differentiated high-grade tumors and often have a coexisting high-grade conventional urothelial carcinoma or a sarcomatoid carcinoma component.
Sarcomatoid carcinoma of the lung: histologic criteria and common lesions in the differential diagnosis.