Skip to content
How It Works
Explore
Ask a Question Resources Pricing
Who It's For
Patients
Decode results, prep for appointments, weigh options.
Caregivers & advocates
Carry the research load for someone you love.
Providers & clinicians
Resources for patients in your practice.
Log In Sign Up
PubMed This is a summary of 63 peer-reviewed journal articles Updated
Neurology · Primary Familial Brain Calcification

Primary Familial Brain Calcification (PFBC) / Fahr's Disease: A Patient Guide

At a Glance

Primary familial brain calcification (PFBC), sometimes called Fahr’s disease, causes calcium deposits in the brain but does not predict how a person will feel. Diagnosis first rules out treatable metabolic causes, and care focuses on each person’s symptoms, safety, and daily functioning.

Primary Familial Brain Calcification (PFBC) is a rare genetic condition characterized by the gradual buildup of calcium deposits in the brain, most commonly within the basal ganglia [1][2]. Historically, this condition was often called Fahr’s Disease, an older term that can be ambiguous because “Fahr syndrome” is frequently used to describe brain calcification caused by secondary, non-genetic issues [2][3].

While seeing calcification on a brain scan can be alarming, it is crucial to know that PFBC is highly variable. The presence of calcium does not determine your destiny; many people with these genetic markers remain completely asymptomatic throughout their lives, and the volume of calcification does not reliably predict the severity of symptoms [4][5].

Because brain calcification can also be caused by common, treatable issues like hormone imbalances or mineral deficiencies, your medical journey begins with a “diagnosis of exclusion” [6][7]. It is absolutely essential to rule out secondary causes—most notably hypoparathyroidism—through a comprehensive blood panel that checks your calcium, phosphate, magnesium, and parathyroid hormone levels [8][9]. Ensuring your condition is truly genetic rather than the result of a reversible metabolic shift is the foundation of an accurate care plan [9][10].

Living with PFBC involves managing a wide spectrum of possible symptoms that can affect movement, mood, or memory [11][5]. You may experience challenges ranging from muscle stiffness and balance issues to changes in your emotional well-being or focus [4][12]. Because these symptoms are unique to every person, there is no “one-size-fits-all” treatment, and there are currently no therapies that reverse the calcification [13][14]. Instead, care is entirely focused on your daily needs [13]. By assembling a multidisciplinary team tailored to your specific symptoms, you can address each challenge as it arises using standard medications and therapies [7][15].

While experimental research continues into the complex genetic biology of PFBC, the focus of your care today is on symptom relief, safety, and empowerment through knowledge [14][16]. Understanding that your brain scan is only one part of your story allows you and your doctors to focus on what matters most: your day-to-day well-being [17][18].

In this guide

6 chapters

01

Understanding Your Diagnosis: Primary Familial Brain Calcification

Learn what a Primary Familial Brain Calcification diagnosis means, how scans and symptoms differ, tests for secondary causes, and what care may involve.

02

Symptoms and the Day-to-Day Impact of PFBC

Learn how Primary Familial Brain Calcification (PFBC) can affect movement, mood, thinking, sleep, balance, and autonomic function, and what symptoms to monitor.

03

Diagnosis: Scans, Biology, and Crucial Look-Alikes

Learn how primary familial brain calcification (PFBC) is diagnosed using CT scans, mineral blood tests, genetic testing, and exclusion of other causes.

04

Genetics and Family Risk in PFBC

Learn how PFBC (primary familial brain calcification) is inherited, what testing reveals, and how penetrance, VUS results, and counseling shape family risk.

05

Standard of Care and Assembling Your Team

Learn how primary familial brain calcification (PFBC) is managed with symptom-based treatment, specialist care, movement support, and mental health planning.

06

Monitoring, Prognosis, and Warning Signs

Learn how Primary Familial Brain Calcification is monitored, what prognosis may look like over time, and which warning signs need emergency medical care.

Common questions in this guide

What is primary familial brain calcification, and how is it related to Fahr’s disease?
Primary familial brain calcification, or PFBC, is a rare inherited condition in which calcium deposits build up in parts of the brain, often the basal ganglia. Fahr’s disease is an older name often used for PFBC, while Fahr syndrome may refer to brain calcification caused by non-genetic conditions. Your clinician can clarify which cause applies to you.
If a scan shows brain calcifications, does that mean I have PFBC?
No. Brain calcification can result from secondary, treatable problems such as hypoparathyroidism or mineral and hormone imbalances. Doctors use your medical history and blood tests to rule out these causes before diagnosing genetic PFBC.
Can someone have PFBC without developing symptoms?
Yes. PFBC varies widely, and many people with genetic markers remain symptom-free. The amount of calcium seen on brain imaging does not reliably predict how severe symptoms will be.
What symptoms can primary familial brain calcification cause?
Possible symptoms include muscle stiffness, movement or balance problems, mood or emotional changes, memory difficulties, and trouble focusing. People can have different symptoms or no symptoms at all, so care is based on how the condition affects you.
Can treatment remove or reverse the calcium deposits in PFBC?
There are currently no therapies that reverse the brain calcification. Care focuses on symptom relief, safety, and daily functioning, using standard medications and supportive therapies tailored to each person’s needs.
How can genetic testing help a family affected by PFBC?
Genetic testing may help clarify whether brain calcification is related to PFBC and guide conversations about testing for relatives. A genetics professional can explain the available options and what the results could mean for your family.
What kind of follow-up and care team does someone with PFBC need?
The right care team depends on a person’s symptoms and may include clinicians who address brain and movement concerns, genetics, or hormone-related causes. Follow-up is individualized and can focus on changes in symptoms, safety, and daily functioning over time.

Questions For You

Answer a question to get research tailored to you. Your answers are private.

Get notified when new evidence is published on Bilateral striopallidodentate calcinosis.

We monitor PubMed for new peer-reviewed studies on this topic and email a short summary when something meaningful changes.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Based on my imaging and labs, where do I stand in the diagnosis process according to the latest international consensus?
  2. 2.Which specific medical specialists should be part of my core care team given my current symptoms?
  3. 3.What is the most effective way for us to monitor my condition over time if my symptoms are currently stable?
  4. 4.Can you help me understand the specific genetic testing options available for my family?

References

References (18)
  1. 1

    Estimation of minimal disease prevalence from population genomic data: Application to primary familial brain calcification.

    Nicolas G, Charbonnier C, Campion D, Veltman JA

    American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics 2018; (177(1)):68-74 doi:10.1002/ajmg.b.32605.

    PMID: 29152850
  2. 2

    Basal ganglia calcification: 'Fahr's disease'.

    Magrinelli F, Jesuthasan A, Bhatia KP, Batla A

    Practical neurology 2025; (25(6)):520-526 doi:10.1136/pn-2024-004258.

    PMID: 40169250
  3. 3

    White matter involvement in a family with a novel PDGFB mutation.

    Biancheri R, Severino M, Robbiano A, et al.

    Neurology. Genetics 2016; (2(3)):e77 doi:10.1212/NXG.0000000000000077.

    PMID: 27227165
  4. 4

    Primary familial brain calcification with known gene mutations: a systematic review and challenges of phenotypic characterization.

    Tadic V, Westenberger A, Domingo A, et al.

    JAMA neurology 2015; (72(4)):460-7 doi:10.1001/jamaneurol.2014.3889.

    PMID: 25686319
  5. 5

    Genotype-Phenotype Relations in Primary Familial Brain Calcification: Systematic MDSGene Review.

    Balck A, Schaake S, Kuhnke NS, et al.

    Movement disorders : official journal of the Movement Disorder Society 2021; (36(11)):2468-2480 doi:10.1002/mds.28753.

    PMID: 34432325
  6. 6

    Brain Calcification and Movement Disorders.

    Kostić VS, Petrović IN

    Current neurology and neuroscience reports 2017; (17(1)):2 doi:10.1007/s11910-017-0710-9.

    PMID: 28097511
  7. 7

    White matter disorders with cerebral calcification in adulthood.

    Chelban V, Houlden H

    Handbook of clinical neurology 2024; (204()):111-131 doi:10.1016/B978-0-323-99209-1.00024-7.

    PMID: 39322374
  8. 8

    Basal Ganglia Calcifications for Nephrologists: Fahr/Primary Familial Brain Calcification (PFBC) at the Interface of Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) and Hypoparathyroidism.

    Alrashidi FS

    Cureus 2025; (17(12)):e99031 doi:10.7759/cureus.99031.

    PMID: 41531582
  9. 9

    Hypoparathyroidism with Fahr's syndrome: A case report and review of the literature.

    Zhou YY, Yang Y, Qiu HM

    World journal of clinical cases 2019; (7(21)):3662-3670 doi:10.12998/wjcc.v7.i21.3662.

    PMID: 31750351
  10. 10

    Eiken syndrome presenting as pseudohypoparathyroidism due to PTH1R gene pathogenic variant.

    Manasa CVS, Guddeti A, Bora A, et al.

    JCEM case reports 2026; (4(11)):luag300 doi:10.1210/jcemcr/luag300.

    PMID: 42824313
  11. 11

    Non-Motor Symptoms in Primary Familial Brain Calcification.

    Bonato G, Cimino P, Pistonesi F, et al.

    Journal of clinical medicine 2024; (13(13)) doi:10.3390/jcm13133873.

    PMID: 38999439
  12. 12

    Gene Variants Related to Primary Familial Brain Calcification: Perspectives from Bibliometrics and Meta-Analysis.

    Yang D, Lu Y, Huang H, et al.

    eNeuro 2025; (12(6)) doi:10.1523/ENEURO.0058-25.2025.

    PMID: 40456615
  13. 13

    The clinical and genetic spectrum of primary familial brain calcification.

    Carecchio M, Mainardi M, Bonato G

    Journal of neurology 2023; (270(6)):3270-3277 doi:10.1007/s00415-023-11650-0.

    PMID: 36862146
  14. 14

    Primary Brain Calcification: An International Consensus on Nomenclature, Diagnosis, Evaluation, and Management.

    Luo W, Cen Z, Koek H, et al.

    Movement disorders : official journal of the Movement Disorder Society 2026; (41(2)):315-336 doi:10.1002/mds.70140.

    PMID: 41346103
  15. 15

    The Association between Intracranial Calcifications and Symptoms in Patients with Primary Familial Brain Calcification.

    Mathijssen G, van Valen E, de Jong PA, et al.

    Journal of clinical medicine 2024; (13(3)) doi:10.3390/jcm13030828.

    PMID: 38337525
  16. 16

    Antisense oligonucleotides enhance SLC20A2 expression and suppress brain calcification in a humanized mouse model.

    Zhao M, Cheng X, Chen L, et al.

    Neuron 2024; (112(19)):3278-3294.e7 doi:10.1016/j.neuron.2024.07.013.

    PMID: 39121859
  17. 17

    Novel findings in a Swedish primary familial brain calcification cohort.

    Sennfält S, Gustavsson P, Malmgren H, et al.

    Journal of the neurological sciences 2024; (460()):123020 doi:10.1016/j.jns.2024.123020.

    PMID: 38642488
  18. 18

    CT-based Volume Measurement of Brain Calcification Is Related to Clinical Symptoms and Disease Progression in Primary Familial Brain Calcification.

    Snijders BMG, Pierey L, Peters MJL, et al.

    Clinical neuroradiology 2026; (36(2)):431-438 doi:10.1007/s00062-025-01595-4.

    PMID: 41296026

This page explains PFBC and Fahr’s disease for informational purposes only and does not constitute medical advice. Ask your healthcare team to interpret your brain imaging, blood tests, genetic results, and symptoms.