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Original Article
- Diagnostic Significance of Cellular Neuroglial Tissue in Ovarian Immature Teratoma
- Yun Chai, Chang Gok Woo, Joo-Young Kim, Chong Jai Kim, Shin Kwang Khang, Jiyoon Kim, In Ah Park, Eun Na Kim, Kyu-Rae Kim
- J Pathol Transl Med. 2017;51(1):49-55. Published online October 14, 2016
- DOI: https://doi.org/10.4132/jptm.2016.09.19
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- 6 Web of Science
- 7 Crossref
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Abstract
PDF - Background
Immature teratoma (IT) is a tumor containing immature neuroectodermal tissue, primarily in the form of neuroepithelial tubules. However, the diagnosis of tumors containing only cellular neuroglial tissue (CNT) without distinct neuroepithelial tubules is often difficult, since the histological characteristics of immature neuroectodermal tissues remain unclear. Here, we examined the significance of CNT and tried to define immature neuroectodermal tissues by comparing the histological features of neuroglial tissues between mature teratoma (MT) and IT.
Methods
The histological features of neuroglial tissue, including the cellularity, border between the neuroglial and adjacent tissues, cellular composition, mitotic index, Ki-67 proliferation rate, presence or absence of tissue necrosis, vascularity, and endothelial hyperplasia, were compared between 91 MT and 35 IT cases.
Results
CNTs with a cellularity grade of ≥ 2 were observed in 96% of IT cases and 4% of MT cases (p < .001); however, CNT with a cellularity grade of 3 in MT cases was confined to the histologically distinct granular layer of mature cerebellar tissue. Moreover, CNT in IT exhibited significantly higher rates of Ki-67 proliferation, mitoses, and necrosis than those in MT (p < .001). Furthermore, an infiltrative border of neuroglial tissue and glomeruloid endothelial hyperplasia were significantly more frequent in IT cases than in MT cases (p < .001).
Conclusions
Our results suggest that if CNT with a cellularity grade of ≥ 2 is not a component of cerebellar tissue, such cases should be diagnosed as IT containing immature neuroectodermal tissue, particularly if they exhibit an infiltrative border, mitoses, necrosis, and increased Ki-67 proliferation. -
Citations
Citations to this article as recorded by
- Immature Teratoma: Diagnosis and Management—A Review of the Literature
Liviu Moraru, Melinda-Ildiko Mitranovici, Diana Maria Chiorean, Marius Coroș, Raluca Moraru, Ioan Emilian Oală, Sabin Gligore Turdean
Diagnostics.2023; 13(9): 1516. CrossRef - Congenital Immature Grade ΙΙΙ Teratoma of the Neck: A Case Report
Nazneen Liaqat, Israr Ud Din, Zeeshan Ali, Majid Rashid, Afsheen Liaqat
Cureus.2023;[Epub] CrossRef - Benign ovarian teratoma in the dog with predominantly nervous tissue: A case report
P Makovicky, AV Makarevich, P Makovicky, A Seidavi, L Vannucci, K Rimarova
Veterinární medicína.2022; 67(2): 99. CrossRef - Fascin as a Useful Marker for Identifying Neural Components in Immature Teratomas of Human Ovary and Those Derived From Murine Embryonic Stem Cells
Ryunosuke Umehara, Atsushi Kurata, Masakatsu Takanashi, Hirotsugu Hashimoto, Koji Fujita, Toshitaka Nagao, Masahiko Kuroda
International Journal of Gynecological Pathology.2019; 38(4): 377. CrossRef - Cerebellar Differentiation in Ovarian Teratoma: A Report of 6 Cases
Colin J.R. Stewart, Maxine L. Crook
International Journal of Gynecological Pathology.2018; 37(4): 316. CrossRef - Mitotic activity of epithelia of ectoand entodermal types in spontaneous and experimental teratomas of mice
Pavel A. Dyban
Medical academic journal.2018; 18(4): 42. CrossRef - Ovarian cystectomy in the treatment of apparent early-stage immature teratoma
Ting Zhao, Yan Liu, Xiao Wang, Hao Zhang, Yuan Lu
Journal of International Medical Research.2017; 45(2): 771. CrossRef
- Immature Teratoma: Diagnosis and Management—A Review of the Literature
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