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Cerebellar liponeurocytoma - molecular signature of a rare entity and the importance of an accurate diagnosis

Please always quote using this URN: urn:nbn:de:bvb:20-opus-177652
  • Background: Cerebellar liponeurocytoma is an extremely rare tumour entity of the central nervous system. It is histologically characterised by prominent neuronal/neurocytic differentiation with focal lipidisation and corresponding histologically to WHO grade II. It typically develops in adults, and usually shows a low proliferative potential. Recurrences have been reported in almost 50% of cases, and in some cases the recurrent tumour may display increased mitotic activity and proliferation index, vascular proliferations and necrosis. ThusBackground: Cerebellar liponeurocytoma is an extremely rare tumour entity of the central nervous system. It is histologically characterised by prominent neuronal/neurocytic differentiation with focal lipidisation and corresponding histologically to WHO grade II. It typically develops in adults, and usually shows a low proliferative potential. Recurrences have been reported in almost 50% of cases, and in some cases the recurrent tumour may display increased mitotic activity and proliferation index, vascular proliferations and necrosis. Thus pathological diagnosis of liponeurocytoma is challenging. This case presentation highlights the main clinical, radiographic and pathological features of a cerebellar liponeurocytoma. Case presentation: A 59-year-old, right-handed woman presented at our department with a short history of persistent headache, vertigo and gait disturbances. Examination at presentation revealed that the patient was awake, alert and fully oriented. The cranial nerve status was normal. Uncertainties were noted in the bilateral finger-to-nose testing with bradydiadochokinesis on both sides. Strength was full and no pronator drift was observed. Sensation was intact. No signs of pyramidal tract dysfunction were detected. Her gait appeared insecure. The patient underwent surgical resection. Afterward no further disturbances could be detected. Conclusions: To date >40 cases of liponeurocytoma have been reported, including cases with supratentorial location. A review of the 5 published cases of recurrent cerebellar. Liponeurocytoma revealed that the median interval between the first and second relapse was rather short, indicating uncertain malignant potential. The most recent WHO classification of brain tumours (2016) classifies the cerebellar liponeurocytoma as a separate entity and assigns the tumour to WHO grade II. Medulloblastoma is the most important differential diagnosis commonly seen in children and young adults. In contrast, cerebellar liponeurocytoma is typically diagnosed in adults. The importance of accurate diagnosis should not be underestimated especially in the view of possible further therapeutic interventions and for the determination of the patient's prognosis.show moreshow less

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Metadaten
Author: Thomas Linsenmann, Camelia M. Monoranu, Balint Alkonyi, Thomas Westermaier, Carsten Hagemann, Almuth F. Kessler, Ralf-Ingo Ernestus, Mario Löhr
URN:urn:nbn:de:bvb:20-opus-177652
Document Type:Journal article
Faculties:Medizinische Fakultät / Neurochirurgische Klinik und Poliklinik
Medizinische Fakultät / Neurologische Klinik und Poliklinik
Language:English
Parent Title (English):Interdisciplinary Neurosurgery
Year of Completion:2019
Volume:16
Pagenumber:7-11
Source:Interdisciplinary Neurosurgery 16 (2019) 7-11. DOI: 10.1016/j.inat.2018.10.017
DOI:https://doi.org/10.1016/j.inat.2018.10.017
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Tag:liponeurocytoma; medulloblastoma; molecular signature; neurocytoma
Release Date:2019/04/12
Collections:Open-Access-Publikationsfonds / Förderzeitraum 2018
Licence (German):License LogoCC BY-NC-ND: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell, Keine Bearbeitungen 4.0 International