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September 1982

Positional Nystagmus of the Benign Paroxysmal Type With Posterior Fossa Medulloblastoma

Author Affiliations

3025 Hurontario St Suite 504 Mississauga, Ontario, Canada L5A 2H1

Arch Neurol. 1982;39(9):601-602. doi:10.1001/archneur.1982.00510210071027

To the Editor.—  This case report describes the possible association of positional nystagmus of the benign paroxysmal type (PN-BPT) with posterior fossa medulloblastoma.

Report of a Case.—  A 35-year-old man complained of an eight-month, nonprogressive history of headache and dizziness. The headache occurred almost daily and began immediately when he sat up in bed in the morning and lasted about an hour. Sometimes it would occur later in the day with a sudden change in head position, but it would be milder and shorter in duration. The morning head pain occurred in the left occipital region, was severe, and was aggravated by straining at stool, bending over, or turning the head from side to side. It was accompanied by dizziness that lasted from seconds to a minute or two without nausea.Physical examination showed a good range of neck movement but severe muscular tenderness in the suboccipital region. A striking

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