Abstract
Anti-Yo antibodies are the antibodies most frequently identified with paraneoplastic cerebellar degeneration (PCD). They are detected above all in PCD associated with breast and gynaecologic malignancies. Here, we report a third case of PCD with cerebellar contrast enhancement findings at MRI. In fact, AYA cross anti-cerebellar cortex immune reaction leads mainly to hyperintensity signals in T2-weighted MRI sequences, followed by cerebellar atrophy. As such, meningeal contrast enhancement could lead to a diagnostic pitfall as it can be considered a carcinomatosis—above all in serum antibody–negative cases as well as when a metastatic tumour is found. Our patient had no tumoural cells in the cerebrospinal fluid and her neurological syndrome remained stable after immunoglobulin treatment. Anti-Yo antibody serum finding was diriment for PCD diagnosis.
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References
Peterson K, Rosenblum MK, Kotanides H, Posner JB. Paraneoplastic cerebellar degeneration. I. A clinical analysis of 55 anti-Yo antibody-positive patients. Neurology. 1992;42:1931–7.
Gilmore CP, Elliott I, Auer D, Maddison P. Diffuse cerebellar MR imaging changes in anti-Yo positive paraneoplastic cerebellar degeneration. J Neurol. 2010;257:490–1.
McHugh JC, Tubridy N, Collins CD, Hutchinson M. Unusual MRI abnormalities in anti-Yo positive “pure” paraneoplastic cerebellar degeneration. J Neurol. 2008;255:138–9.
Dalmau J, Rosenfeld MR. Paraneoplastic syndromes of the CNS. Lancet Neurol. 2008;7(4):327–40.
Bhardawaj S, Khasani S, Benasher D, et al. Paraneoplastic cerebellar degeneration in nasopharyngeal carcinoma: a unique association. Cerebellum. 2019;18:1126–9.
Graus F, Delattre JY. Antoine JC, et al Recommended diagnostic criteria for paraneoplastic neurological syndromes. J Neurol Neurosurg Psychiatry. 2004;75:1135–40.
Madhavan AA, Carr CM, Morris PP, Flanagan EP, Kotsenas AL, Hunt CH, et al. Imaging review of paraneoplastic neurologic syndromes. AJNR Am J Neuroradiol. 2020. https://doi.org/10.3174/ajnr.A6815
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MN wrote the manuscript. MN and AR conceived the case report. AR, GTM, GA, and VM analysed the data.
FZ described MRI findings and selected the radiological images. AB made histopathological analysis and choice the images. All authors have read and approved the manuscript.
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Napolitano, M., Ranieri, A., Alfieri, G. et al. Paraneoplastic Cerebellar Degeneration Associated with Anti-Yo Antibodies Appearing as a Leptomeningeal Cerebellar Carcinomatosis at MRI: a Case Report. SN Compr. Clin. Med. 3, 2329–2331 (2021). https://doi.org/10.1007/s42399-021-01002-2
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DOI: https://doi.org/10.1007/s42399-021-01002-2