In the fourth installment of our series on primary progressive aphasia (PPA), Dr. Rogan Magee discusses semantic variant PPA. Show citations: <ol> <li>Grossman M, Seeley WW, Boxer AL, et al. Frontotemporal lobar degeneration. Nat Rev Dis Primers. 2023;9(1):40. Published 2023 Aug 10. doi:<a href= "https://www.nature.com/articles/s41572-023-00447-0" target= "_blank" rel="noopener">10.1038/s41572-023-00447-0</a> </li> <li>Gorno-Tempini ML, Hillis AE, Weintraub S, et al. Classification of primary progressive aphasia and its variants. Neurology. 2011;76(11):1006-1014. doi:<a href= "https://www.neurology.org/doi/10.1212/WNL.0b013e31821103e6" target="_blank" rel= "noopener">10.1212/WNL.0b013e31821103e6</a></li> <li>Santos-Santos MA, Rabinovici GD, Iaccarino L, et al. Rates of Amyloid Imaging Positivity in Patients With Primary Progressive Aphasia. JAMA Neurol. 2018;75(3):342-352. doi:<a href="https://jamanetwork.com/journals/jamaneurology/fullarticle/2668464" target="_blank" rel= "noopener">10.1001/jamaneurol.2017.4309</a></li> <li>Mandelli ML, Lorca-Puls DL, Lukic S, et al. Network anatomy in logopenic variant of primary progressive aphasia. Hum Brain Mapp. 2023;44(11):4390-4406. doi:<a href= "https://onlinelibrary.wiley.com/doi/10.1002/hbm.26388" target= "_blank" rel="noopener">10.1002/hbm.26388 </a></li> <li>Putcha D, Erkkinen M, Daffner KR. Functional Neurocircuitry of Cognition and Cognitive Syndromes. In: Silbersweig DA, Safar LT, Daffner KR. eds. Neuropsychiatry and behavioral neurology: principles and practice. McGraw Hill; 2021. Accessed November 6, 2025. <a href= "https://neurology.mhmedical.com/content.aspx?bookid=3007&sectionid=253215676">https://neurology.mhmedical.com/content.aspx?bookid=3007&sectionid=253215676</a> </li> <li>Montembeault M, Brambati SM, Gorno-Tempini ML, Migliaccio R. Clinical, Anatomical, and Pathological Features in the Three Variants of Primary Progressive Aphasia: A Review. Front Neurol. 2018;9:692. Published 2018 Aug 21. doi:<a href= "https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2018.00692/full" target="_blank" rel="noopener">10.3389/fneur.2018.00692</a></li> <li>Clark DG. Frontotemporal Dementia. Continuum (Minneap Minn). 2024;30(6):1642-1672. doi:<a href= "https://continuum.aan.com/doi/10.1212/CON.0000000000001506" target="_blank" rel= "noopener">10.1212/CON.0000000000001506</a> </li> </ol>

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