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- Title
Molecular genetic findings in two cases of sarcomatoid carcinoma of the ureter: evidence for evolution from a common pluripotent progenitor cell?
- Authors
Hans-Ullrich Völker; Andreas Zettl; Georg Schön; Vitus Heller; Elmar Heinrich; Andreas Rosenwald; Mathias Handwerker; Hans-Konrad Müller-Hermelink; Alexander Marx; Philipp Ströbel; Völker, Hans-Ullrich; Zettl, Andreas; Schön, Georg; Heller, Vitus; Heinrich, Elmar; Rosenwald, Andreas; Handwerker, Mathias; Müller-Hermelink, Hans-Konrad; Marx, Alexander; Ströbel, Philipp
- Abstract
The current World Health Organization classification recommends the usage of the term sarcomatoid carcinoma (SC) for all biphasic malignant neoplasms of the urinary tract exhibiting morphologic and/or immunohistochemical evidence of epithelial and mesenchymal differentiation. While most SC have been described in the urinary bladder, ureteral SC are extremely rare tumors. Here, we report on the clinical, morphological, and molecular biological findings of two cases in this unusual location. The genetic alterations investigated by comparative genomic hybridization in the epithelial and the mesenchymal component of both cases showed considerable but not complete overlap. Moreover, in spite of many morphological differences between the two cases, both cases shared some genetic gains and losses. Our findings are compatible with the concept that SC originates from a common pluripotent progenitor cell with a potential for epithelial and mesenchymal differentiation.
- Subjects
BLADDER tumors; TUMORS; PATHOLOGY; CYSTS (Pathology); WORLD Health Organization; CELL differentiation; DNA; NUCLEIC acid hybridization; STEM cells; URETER tumors; SARCOMA
- Publication
Virchows Archiv: European Journal of Pathology, 2008, Vol 452, Issue 4, p457
- ISSN
0945-6317
- Publication type
journal article
- DOI
10.1007/s00428-008-0583-z