alexa Odontogenic classification of craniopharyngiomas: a clinicopathological study of 54 cases.


Journal of Clinical & Experimental Pathology

Author(s): Paulus W, Stckel C, Krauss J, Srensen N, Roggendorf W

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Abstract Based on the striking histological similarity of craniopharyngiomas and some odontogenic tumours, we reclassified a series of 54 craniopharyngiomas (52 adamantinomatous and two papillary variants) according to the WHO classification of odontogenic tumours. Twenty-seven tumours (50\%) corresponded histologically to calcifying odontogenic cyst. 13 tumours (24\%) to ameloblastoma, and eight (15\%) tumours showed features of both calcifying odontogenic cyst and ameloblastoma either within the same specimen or in specimens derived from different resections. Rare tumours included three cases resembling calcifying epithelial odontogenic tumour and one case resembling adenomatoid odontogenic tumour. No odontogenic counterpart could be established for papillary craniopharyngiomas. The two major subtypes, i.e. craniopharyngioma corresponding to calcifying odontogenic cyst and craniopharyngioma corresponding to ameloblastoma, did not differ in their basic clinical features. Our data confirm and extend the close histological resemblance between adamantinomatous craniopharyngioma and odontogenic tumours and cysts. Furthermore, although calcifying odontogenic cyst and ameloblastoma arising in the jaw differ in clinical presentation and outcome, our study did not reveal clinical differences for the corresponding subtypes of craniopharyngioma.
This article was published in Histopathology and referenced in Journal of Clinical & Experimental Pathology

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