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1. chinaXiv:201806.00138 [pdf]

Rosai-Dorfman disease in the larynx: report of a case and literature review

XU Xia; DENGWenting; HUANG Chengzhi; WANG Jian
Subjects: Medicine, Pharmacy >> Preclinical Medicine

Rosai-Dorfman病是一种发生在淋巴结或结外组织的良性组织细胞增生性病变,而发生在喉部的结外Rosai-Dorfman病例及其罕见,其病变特征不明显,缺乏典型的发热及淋巴结肿大症状,临床上易误诊为恶性肿瘤,治疗也无标准可循。本文报道1 例喉部Rosai-Dorfman病,应用微创手术加激素治疗,保留了喉功能,取得良好疗效,并结合文献对这一罕见疾病的诊治进行探讨。

submitted time 2018-06-15 Cooperative journals:《南方医科大学学报》 Hits3190Downloads1850 Comment 0

2. chinaXiv:201711.01906 [pdf]

Presence of the calcaneal canal in basal Glires

ZHANG Zhao-Qun; LI Chuan-Kui; WANG Jian; WANG Yuan-Qing; MENG Jin
Subjects: Biology >> Zoology

A unique canal (calcaneal canal) running diagonally through the calcaneus was commonly considered as characteristic for lagomorphs, both extant and fossil, but absent in rodents and other pertinent lagomorph relatives. However, our investigation of a calcaneus from the Middle Paleocene of Qianshan, Anhui Province and specimens previously grouped in Mimotonidae also shows presence of canals on calcaneus bones. To further explore the unique character, we scanned calcanei of Ordolagus, Mimolagus, Gomphos, Rhombomylus, and Oryctolagus using micro CT and investigated the calcanei of some other related taxa under microscope. Three-dimensional reconstructions of the calcanei based on CT data of these taxa confirmed the presence of apertures traversing the large medullary cavity. The diagonally oriented calcaneal canal is present not only in lagomorphs, but also in non-lagomorph duplicidentates, such as Mimotona, Gomophos, and simplicidentates, such as Rhombomylus, though smaller in size. Hence, the presence of calcaneal canal may be one of the synapomophic characters for Glires, not only for the order Lagomorpha. The shared calcaneus character confirms the close relationship between Simplicidentata and Duplicidentata.

submitted time 2017-11-07 Cooperative journals:《古脊椎动物学报》 Hits3274Downloads1346 Comment 0

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