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Abstract Details

Elevation of 14-3-3 and Unique MRI findings in a Case of Logopenic Variant Primary Progressive Aphasia
Aging, Dementia, and Behavioral Neurology
P2 - Poster Session 2 (5:30 PM-6:30 PM)
9-034
We report on the clinical, linguistic, imaging, and neuropathological features of a patient with logopenic variant primary progressive aphasia with elevated 14-3-3 and leptomeningeal enhancement on MRI brain.

Primary progressive aphasia (PPA) is a progressive neurodegenerative syndrome characterized by selective language impairment and is described as semantic, logopenic or nonfluent agrammatic variant. 14-3-3, a regulatory neuronal protein, has been known to be associated with CJD, Parkinson Disease, and Alzheimer Disease.


Here we discuss a case of a 65 year-old right-handed male who presents for evaluation of gradual progressive decline in speech over a 6-month period that acutely worsened within the 2 weeks prior to presentation. On physical exam he was unable to organize language and had frequent paraphasias and consistent circumlocutions. There was significant impairment in sentence repetition and single word retrieval. These symptoms were rapid and severe; in those short 6 months, the patient had relinquished his duties as a Chief Executive Officer of his company.

Case Report

MRI-brain revealed left parietal, temporal, and occipital atrophy, but uniquely demonstrated leptomeningeal enhancement with vasogenic edema in the same area. Biopsy of a right frontal lesion showed beta-amyloid plaques within the cortex. Together with the clinical picture, the diagnosis of logopenic variant PPA was made.


Given his uncommon presentation, additional laboratory testing was performed and revealed his CSF was negative for RT-QuIC and T-tau was 350 (Non-Prion disease 0-1149), however, 14-3-3 was positive. He was started on Namenda and intensive speech therapy with significant improvement in speech and cognitive functions.

These findings indicate that in PPA logopenic variant, 14-3-3 may be elevated. In this case, it may be attributed to the rapid symptomatic progression. However, it is unclear whether the leptomeningeal enhancement is related directly to his disease process. Further studies are needed to determine the significance of these findings.
Authors/Disclosures
Yazan Al-Hasan, MD, PhD (St. Joseph's Hospital and Medical Center)
PRESENTER
Dr. Al-Hasan has nothing to disclose.
Justin Hoskin, MD (Barrow Neurological Institute) Dr. Hoskin has nothing to disclose.
Xiao Weng, MD (Trinity Health of New England) Dr. Weng has nothing to disclose.
Suraj Muley, MD, FAAN (Barrow Neurological Institute) Dr. Muley has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Argenx. Dr. Muley has received personal compensation in the range of $10,000-$49,999 for serving on a Speakers Bureau for Alexion. Dr. Muley has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for CSL Behring. Dr. Muley has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Takeda. Dr. Muley has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Catalyst. Dr. Muley has received publishing royalties from a publication relating to health care.
Marwan N. Sabbagh, MD, FAAN (Barrow Neurological Institute) Dr. Sabbagh has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Eisai. Dr. Sabbagh has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Genetech=Roche. Dr. Sabbagh has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Novo Nordisk. Dr. Sabbagh has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Lilly. Dr. Sabbagh has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Synaptogenix. Dr. Sabbagh has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Signant Health. Dr. Sabbagh has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Anavex. Dr. Sabbagh has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Cognito Therapeutics. Dr. Sabbagh has received personal compensation in the range of $500-$4,999 for serving as a Consultant for GSK. Dr. Sabbagh has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Abbvie. Dr. Sabbagh has received personal compensation in the range of $10,000-$49,999 for serving as an officer or member of the Board of Directors for CervoMed. Dr. Sabbagh has stock in Neurotau. Dr. Sabbagh has stock in Seq Biomarque. Dr. Sabbagh has stock in uMethod Health. Dr. Sabbagh has stock in Athira. Dr. Sabbagh has stock in Lighthouse Pharmaceuticals. Dr. Sabbagh has stock in Alzheon. The institution of Dr. Sabbagh has received research support from NIH. The institution of Dr. Sabbagh has received research support from ADDF.