NDLI: Cyclin D1 Expression in Ectomesenchymal Chondromyxoid Tumor of the Anterior Tongue.

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Cyclin D1 Expression in Ectomesenchymal Chondromyxoid Tumor of the Anterior Tongue.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Laco, Jan Mottl, Radovan Höbling, Walter Ihrler, Stephan Grossmann, Petr Skalova, Alena Ryska, Ales
Description	Country affiliation: Czech Republic Author Affiliation: Laco J ( The Fingerland Department of Pathology, Charles University in Prague, Faculty of Medicine and University Hospital in Hradec Kralove, Czech Republic lacoj@lfhk.cuni.cz.); Mottl R ( Department of Dentistry, Charles University in Prague, Faculty of Medicine and University Hospital in Hradec Kralove, Czech Republic.); Höbling W ( Institut für Pathologie und Zytodiagnostik, Klinikum Wels - Grieskirchen, Wels, Austria.); Ihrler S ( Labor für Dermatohistologie und Oralpathologie, München, Germany.); Grossmann P ( Bioptic Laboratory, ltd, Plzen, Czech Republic.); Skalova A ( Bioptic Laboratory, ltd, Plzen, Czech Republic Department of Pathology, Charles University in Prague, Faculty of Medicine in Plzen, Czech Republic.); Ryska A ( The Fingerland Department of Pathology, Charles University in Prague, Faculty of Medicine and University Hospital in Hradec Kralove, Czech Republic.)
Abstract	Ectomesenchymal chondromyxoid tumor (ECT) is a rare benign tumor of uncertain lineage, which almost exclusively affects the anterior tongue. Herein, we report 2 cases of ECT occurring in 58- and 56-year-old males on the right and on the left side of the dorsum of the anterior tongue, measuring 18 mm and 10 mm, respectively. Despite positive resection margin in one case, none of the tumors recurred during follow-up of 6 and 5 years. Microscopically, both tumors had lobular architecture with a mixture of solid, microcystic, and chondromyxoid areas. The tumor cells were polygonal or elongated and showed mild atypia in one case. Immunohistochemically, both tumors showed diffuse expression of vimentin and focal positivity of CD10 and of smooth muscle actin. Regarding neural tissue-related markers, there was nearly diffuse expression of CD56 and neuron-specific enolase and focal positivity of PGP 9.5 in both cases and variable expression of CD57, synaptophysin, glial fibrillary acidic protein, and S-100 protein. Interestingly, we observed diffuse expression of SOX10 in one case. In both tumors, diffuse strong nuclear expression of cyclin D1 was present, without CCND1/IGH translocation or CCND1 amplification. The EWSR1 gene rearrangement was not detected. To the best of our knowledge, expression of SOX10, which may support neural crest origin of this peculiar lesion, has not been reported in ECT. The significance of strong cyclin D1 expression remains to be further investigated.
File Format	HTM / HTML
ISSN	10668969
Issue Number	7
Journal	International Journal of Surgical Pathology
Volume Number	24
e-ISSN	19402465
Language	English
Publisher	Sage Publications
Publisher Date	2016-10-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline General Surgery Discipline Pathology
Content Type	Text
Resource Type	Article
Subject	Anatomy Surgery Pathology and Forensic Medicine

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Ectomesenchymal Chondromyxoid Tumor in the Anterior Tongue: Case Report of a Unique Tumor

Ectomesenchymal Chondromyxoid Tumor in the Anterior Tongue: Case Report of a Unique Tumor

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