Miki Hirano1, Vaios Hatzoglou2, Sasan Karimi3, Robert J Young4. 1. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address: mikihirano89@gmail.com. 2. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York; Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address: hatzoglv@mskcc.org. 3. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York; Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address: karimis@mskcc.org. 4. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York; Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address: youngr@mskcc.org.
Abstract
PURPOSE: Characterize hypertrophic olivary degeneration (HOD) that develops from posterior fossa masses and their treatments. METHODS: Retrospectively reviewed MR images and clinical data of 10 patients with posterior fossa masses and HOD. RESULTS: Eight patients had cerebellar lesions, and two patients had pontine lesions. Lesions consisted of tumors, demyelination, and nonspecific necrosis. MRI showed T2 hyperintense signal in the inferior olive a median 86 days after the diagnosis of a posterior fossa lesion. HOD presented prior to surgery (n=2), after surgery (n=3), after surgery/radiation therapy (n=4), or without treatment (n=1). CONCLUSIONS: HOD may develop from posterior fossa masses and surgical and/or radiation therapy.
PURPOSE: Characterize hypertrophic olivary degeneration (HOD) that develops from posterior fossa masses and their treatments. METHODS: Retrospectively reviewed MR images and clinical data of 10 patients with posterior fossa masses and HOD. RESULTS: Eight patients had cerebellar lesions, and two patients had pontine lesions. Lesions consisted of tumors, demyelination, and nonspecific necrosis. MRI showed T2 hyperintense signal in the inferior olive a median 86 days after the diagnosis of a posterior fossa lesion. HOD presented prior to surgery (n=2), after surgery (n=3), after surgery/radiation therapy (n=4), or without treatment (n=1). CONCLUSIONS: HOD may develop from posterior fossa masses and surgical and/or radiation therapy.
Authors: Patricia Litkowski; Robert J Young; Suzanne L Wolden; Mark M Souweidane; Sofia Haque; Stephen W Gilheeney Journal: Clin Imaging Date: 2012-06-08 Impact factor: 1.605
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Authors: Martin A Schaller-Paule; Christian Foerch; Sara Kluge; Peter Baumgarten; Jürgen Konczalla; Joachim P Steinbach; Marlies Wagner; Anna-Luisa Luger Journal: J Clin Med Date: 2019-12-16 Impact factor: 4.241