Zusammenfassung
Trotz gravierender Unterschiede in der zugrunde liegenden mikroskopischen Anatomie bestehen innerhalb des weiten Spektrums von Hautadnex- und Speicheldrüsentumoren bemerkenswerte Ähnlichkeiten. In der vorliegenden Arbeit werden Typen von Speicheldrüsen- und Hautadnextumoren mit histologischen, terminologischen und pathogenetischen Analogien identifiziert und verglichen. Histologische Analogien von Speicheldrüsentumoren beziehen sich auf ekkrine, apokrine und selten sebozytäre (nicht trichofollikuläre) Typen von Hautadnextumoren. Die auffälligste Analogie besteht zwischen dem pleomorphen Adenom der Speicheldrüsen und dem kutanen Mischtumor. Eine Mehrschrittkanzerogenese, beginnend mit einem intraduktalen Karzinom, welche beim Karzinom ex pleomorphes Adenom identifiziert wurde, ist identisch manifest beim kutanen Karzinom ex Spiradenom. Weitere histologische und/oder terminologische Analogien werden aufgezeigt für muzinöse/mukoepidermoide Karzinome, Lymphadenome/lymphoepitheliale Karzinome, sebazeöse Adenome bzw. Karzinome, adenoidzystische Karzinome sowie für Basalzelladenome der Speicheldrüsen vs. kutane Spiradenome. Manifeste diagnostische Probleme bzgl. histologisch ähnlicher Speicheldrüsen- und Hautadnextumoren sind selten und topographisch beschränkt auf die parotideale und orale Region.
Abstract
Despite major discrepancies in basic microscopic anatomy, remarkable similarities are manifest within the wide spectrum of cutaneous adnexal and salivary gland tumors. In this study salivary gland and adnexal tumors were identified and investigated with respect to similarities in histology, terminology and pathogenesis. Histological similarities of certain types of salivary gland tumors relate to eccrine, apocrine and rarely sebaceous (but not trichofollicular) types of adnexal tumors. The most striking similarity was found with salivary gland pleomorphic adenoma and cutaneous mixed tumor. Multistep carcinogenesis starting with intraductal carcinoma, identified in carcinoma ex pleomorphic adenoma is identical to that found in cutaneous carcinoma ex spiradenoma. Further histological and terminological similarities are shown for mucinous and mucoepidermoid carcinoma, for lymphadenoma and lymphoepithelial carcinoma, for sebaceous adenoma and carcinoma, for adenoid-cystic carcinoma, as well as for salivary gland basal cell adenoma versus cutaneous spiradenoma. Manifest diagnostic problems related to histologically similar salivary gland and adnexal tumors are rare and are topographically limited to the parotid and oral areas.
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Interessenkonflikt. S. Ihrler, C. Weiler, F. Eckert, M. Mollenhauer geben an, dass kein Interessenkonflikt besteht. Dieser Beitrag beinhaltet keine Studien an Menschen oder Tieren.
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Auszüge dieser Arbeit wurden 2014 bei den 15. Bamberger Morphologietagen vorgetragen.
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Ihrler, S., Weiler, C., Eckert, F. et al. Hautadnex- vs. Speicheldrüsentumoren. Pathologe 35, 476–486 (2014). https://doi.org/10.1007/s00292-014-1929-8
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DOI: https://doi.org/10.1007/s00292-014-1929-8