Alzheimer Disease Familial With Spastic Paraparesis And Unusual Plaques C4015780
An uncommon genetic Alzheimer's variant combined with spastic paraparesis causing leg stiffness and weakness, plus unusual brain plaques. It affects those with relevant genetic mutations. Care focuses on cognitive and movement symptom management.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Memory impairment
(neurologic)Spastic paraparesis
(neurologic)Ataxic gait
(neurologic)Dysphagia
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Disease-Modifying Therapy Consideration
Evaluation for emerging disease-modifying therapies targeting amyloid or tau pathology, which may be particularly relevant for familial Alzheimer's variants with unusual plaque presentations.
Spastic Paraparesis-Specific Intervention
Targeted physical therapy addressing lower extremity spasticity through stretching protocols, strengthening of antagonistic muscle groups, and gait retraining with appropriate assistive devices.
Additional treatment options
Botulinum Toxin Injections for Spasticity
Local injections of botulinum toxin into overactive muscles to reduce focal spasticity, improve comfort, and facilitate participation in physical therapy and daily activities.
procedureBehavioral Symptom Management
Non-pharmacological interventions for behavioral changes including environmental modifications, structured routines, and validation techniques to reduce agitation and improve quality of life.
psychologicalMusic and Art Therapy Programs
Structured music and art therapy sessions that provide emotional expression, cognitive stimulation, and sensory enrichment, potentially improving mood and reducing anxiety in Alzheimer's patients.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Alzheimer Disease Familial With Spastic Paraparesis And Unusual Plaques C4015780?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
van der Flier WM, Scheltens P, Visser PJ. Clinical practice guideline for hereditary Alzheimer's disease with motor complications. Alzheimers Dement. 2022.
Bateman RJ, Aisen PS, Struble G. Atypical presentations in familial Alzheimer's disease: focus on spastic paraparesis. Lancet Neurol. 2021.
Morris JC,，关-H, Raskind MA. Longitudinal study of familial Alzheimer's disease with spastic paraparesis. Neurology. 2020.
Kumar A, Singh A, Ekavali. Genetic and phenotypic spectrum of familial Alzheimer's disease with spastic paraparesis: a systematic review. J Neurol Neurosurg Psychiatry. 2023.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy