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来自泰国晚侏罗世马门溪龙类的成骨性肿瘤新报告。

Novel report of an osteogenic tumor in a late Jurassic Mamenchisaurid from Thailand.

作者信息

Kaikaew Siripat, Suteethorn Suravech, Chinsamy Anusuya

机构信息

Department of Biological Sciences, University of Cape Town, Cape Town, South Africa.

Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham, Thailand.

出版信息

J Anat. 2025 Sep-Oct;247(3-4):699-711. doi: 10.1111/joa.14266. Epub 2025 Apr 24.

DOI:10.1111/joa.14266
PMID:40274378
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12397083/
Abstract

Here we report on an osseous abnormality and multiple fractures in an ulna of a subadult basal Eusauropod (Mamenchisauridae) from the Late Jurassic Phu Kradueng Formation in Thailand. The anatomical deformities were studied using a multi-method approach that included an assessment of its gross morphology, computed tomography (CT), and osteohistology to aid in its diagnosis. The intracortical lesion in the bone is irregularly shaped, has well-defined margins with scattered irregular bony trabeculae especially in its center, and it is surrounded by sclerotic bone and spiculated periosteal reactive tissue. The analysis of the radiology and the histopathological characteristics indicates that the lesion in the ulna is an osteogenic tumor, although we are unable to confidently commit to a more specific diagnosis. CT scan data indicated that the multiple fractures evident in the ulna occurred postmortem and are unrelated to the pathology. This is the first report of an osteogenic tumor in a basal Eusauropoda.

摘要

在此，我们报告了来自泰国晚侏罗世普卡登组的一具亚成年基础蜥脚类恐龙（马门溪龙科）尺骨上的骨质异常和多处骨折。我们采用了多种方法研究这些解剖学畸形，包括对其大体形态、计算机断层扫描（CT）和骨组织学进行评估，以辅助诊断。骨内的皮质内病变形状不规则，边缘清晰，有散在的不规则骨小梁，尤其是在其中心部位，周围是硬化骨和针状骨膜反应性组织。放射学和组织病理学特征分析表明，尺骨病变是一种成骨性肿瘤，尽管我们无法确定更具体的诊断。CT扫描数据表明，尺骨上明显的多处骨折是死后发生的，与病变无关。这是基础蜥脚类恐龙中首次报道有成骨性肿瘤。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/fd4a87324216/JOA-247-699-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/cba6b1bd9595/JOA-247-699-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/867d2878e89c/JOA-247-699-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/708edede36d7/JOA-247-699-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/e48f3350bb59/JOA-247-699-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/ae76afd2d9dc/JOA-247-699-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/fd4a87324216/JOA-247-699-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/cba6b1bd9595/JOA-247-699-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/867d2878e89c/JOA-247-699-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/708edede36d7/JOA-247-699-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/e48f3350bb59/JOA-247-699-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/ae76afd2d9dc/JOA-247-699-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8430/12397083/fd4a87324216/JOA-247-699-g005.jpg

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