Abstract
The results of analysis of a bone tissue neoplasm on the mandible of an Early Mesozoic temnospondyl amphibian Benthosuchus korobkovi Ivachnenko from the Tikhvinskoe locality (upper reaches of the Volga River, Yaroslavl oblast (Region); Lower Triassic, Lower Olenekian substage) are presented. The use of multispiral computed tomography enabled a rather well justified conclusion of the neoplastic (tumor) character of this pathological formation. Non-odontogenic osteoma is the most likely diagnosis, but hemangioma and fibrotic dysplasia cannot be ruled out either.
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Notes
The Hounsfield unit (HU) scale for densitometric parameters is a scale for linear attenuation of radiation relatively to distilled water with the X-ray density arbitrarily set at 0 HU (at the standard pressure and temperature).
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ACKNOWLEDGMENTS
The authors are grateful to T.N. Ivanova (Mukhin Clinical Hospital, Moscow), L.N. Vylegzhanina (Remsi Diagnostika medical center, Saint Petersburg), and P.Yu. Ushatov (OOO Pi Es Ai, Saint Petersburg) for consultations related to the primary research method.
Funding
The study was performed within the framework of the State Program for increasing the competitiveness of the Kazan Federal University among the leading research and education centers of the world.
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Novikov, I.V., Haiduk, P.A., Gribanov, A.V. et al. The Earliest Case of Neoplastic Bone Lesion in Tetrapods. Paleontol. J. 54, 68–72 (2020). https://doi.org/10.1134/S0031030120010074
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DOI: https://doi.org/10.1134/S0031030120010074