Question 1

What is L-ferritin deficiency?

Accepted Answer

L-ferritin deficiency is a rare genetic condition known by several names including L-ferritin deficiency, dominant and recessive L-ferritin deficiency, and LFTD. Trusted sources such as OMIM, Orphanet, and GARD have catalogued this condition, but detailed descriptions remain limited at this time. The condition is linked to the FTL gene, which plays an important role in the body’s processing of iron. Although information is sparse, the listing of both dominant and recessive forms in the synonyms suggests that there may be variability in how this condition is inherited.

The available references (OMIM:615604, Orphanet:440731, GARD:17748) indicate that while L-ferritin deficiency has been recognized within medical databases, the clinical details, including a full definition, remain under-described. Because research on this condition is still in early stages, many aspects including its natural history, range of clinical manifestations, and overall impact on people with this condition are not comprehensively documented.

Question 2

What are the symptoms of L-ferritin deficiency?

Accepted Answer

Information about symptoms is currently limited for this condition. Trusted sources do not provide a detailed list of common signs or symptoms that may be experienced by people with L-ferritin deficiency at this time.

Question 3

What causes L-ferritin deficiency?

Accepted Answer

L-ferritin deficiency is associated with changes in the FTL gene. The presence of both dominant and recessive forms in the synonyms suggests that different genetic inheritance patterns might be involved. However, detailed descriptions of the specific genetic variations and how they affect iron storage or overall protein function are not provided in the available trusted sources. Associated genes include FTL.

Question 4

How is L-ferritin deficiency inherited?

Accepted Answer

L-ferritin deficiency follows an autosomal recessive and autosomal dominant inheritance pattern. This means a child must inherit a copy of the altered gene from both parents to develop the condition. Parents who each carry one copy typically do not show symptoms.

Question 5

How rare is L-ferritin deficiency?

Accepted Answer

L-ferritin deficiency is classified as very rare. The estimated prevalence is approximately <1 in 1,000,000. Because rare disease data can be limited, actual numbers may differ from published estimates.

Question 6

How is L-ferritin deficiency diagnosed?

Accepted Answer

Information about diagnosis is currently limited for this condition. The available sources do not offer details on the types of tests or evaluations, such as genetic testing or other laboratory studies, that might be used to diagnose L-ferritin deficiency.

Question 7

Are there treatments for L-ferritin deficiency?

Accepted Answer

Information about treatment is currently limited for this condition. There is no detailed guidance from trusted sources regarding medical interventions, symptom management, or supportive care for people with L-ferritin deficiency.

Question 8

What complications can arise from L-ferritin deficiency?

Accepted Answer

Currently, there is limited information about the complications that may arise from L-ferritin deficiency. Since this condition affects how the body processes iron, it might lead to issues related to iron storage. However, specific complications and their impacts are not well-documented at this time.

Question 9

How does L-ferritin deficiency affect daily life?

Accepted Answer

Information about how L-ferritin deficiency impacts daily life is currently limited. People with this condition may experience challenges related to iron processing, but specific daily life impacts have not been clearly outlined. More research is needed to understand how this condition affects everyday activities.

Question 10

What is the long-term outlook for someone with L-ferritin deficiency?

Accepted Answer

The long-term outlook for individuals with L-ferritin deficiency is not well-defined in the current resources. There is limited information on potential complications and overall quality of life for those affected. Ongoing research may provide more insights into the prognosis in the future.

Question 11

Are there any specialists recommended for managing L-ferritin deficiency?

Accepted Answer

Currently, there are no specific recommendations for specialists to manage L-ferritin deficiency. Because this condition is rare and not well-understood, it may be beneficial to consult with a geneticist or a specialist in metabolic disorders. They can help guide families in understanding and managing the condition.

Organ System	Phenotype Count	Example Features
Skin	1	Alopecia
Brain and nerves

Category	Feature	% of Persons w/Feature1	Comment
phenotype	Chorea	50%	Affects 1 or 2 limbs at time of onset; Age of onset in adulthood Dystonia
Motor issues	Bradykinesia	35%	Motor issues typically progressive Dystonia
Oral motor issues	Dysarthria	78%	—
Dysphonia	48%	—	—
Orolingual dyskinesia	65%	—	—
Dysphagia	40%	—	—
Eye issues	Abnormal EOM	8%	—
Cognitive deficits	Impaired verbal learning executive function	Frequencynot known	Typically subtle but progress over time
Behavioral issues	Disinhibition, emotional lability, aggression	—	—
Brain MRI features	Excess brain iron accumulationon T2-weighted MRI	100%	—
Serum ferritin levels	Low serum ferritin concentrations (20 g/L) in most males postmenopausal females	82% of males; 100% postmenopausal females; 23% of premenopausal females	Typically w/in normal limits in premenopausal females EOM = extraocular muscle (function) 1. In 40 individuals with the FTL Movement disorder.

Gene	Disorder	MOI	Features Overlapping w/Neuroferritinopathy	Distinguishing Features
SCA2	AD	Dystonia	Ataxia neuropathy (a minor feature) in SCA2 ATXN3	—
SCA3	AD	Dystonia, chorea, orofacial movement disorder	Spasticity in SCA3 CP	—
Aceruloplasminemia	AR	Early-onset movement disorder	Different MRI findings HTT	—
Huntington disease	AD	Chorea early neuropsychiatric features	Brain imaging distinguishes diagnoses. NPC1 NPC2	—
Niemann-Pick type C	AR	Early-onset movement disorder	Different MRI findings	—
PANK2	Pantothenate kinase-associated neurodegeneration (PKAN)	AR	Very similar MRI findings incl "eye of the tiger" sign	Earlier onset in PKAN
PLA2G6	Infantile neuroaxonal dystrophy (INAD) (See PLA2G6-Associated Neurodegeneration.)	AR	Imaging findings resembling but distinct from neuroferritinopathy	Earlier onset in INAD PRKN
Parkin type of early-onset Parkinson disease	AR	Early-onset movement disorder	Different MRI findings TBP	—
SCA17	AD	Chorea dystonia	Spasticity in SCA17	—
TOR1A	DYT1 early-onset isolated dystonia (DYT1)	AD	Generalized dystonia	Chorea is uncommon in DYT1 DYT1 is not assoc w/psychiatric features. Various
Mitochondrial disorders	Various	Basal ganglia abnormalities on MRI	Different MRI findings	—
VPS13A	Chorea-acanthocytosis (ChAc)	AR	Orofacial dyskinesia	Impaired reflexes in ChAc
XK	McLeod neuroacanthocytosis syndrome (MLS)	XL	Absent deep tendon reflexes in MLS AD = autosomal dominant; AR = autosomal recessive; MOI = mode of inheritance; SCA = spinocerebellar ataxia; XL = X-linked Neurodegenerative disorders with brain iron accumulation (NBIA).	—

Kisho

L-ferritin deficiency

Overview

Clinical Presentation

Genetic Landscape

Diagnosis

Diagnostic Criteria

Suggestive Findings

Treatment

Management Guidelines

Prognosis

Surveillance Guidelines

Research Landscape

Recent Publications

Medical References

External Resources

OMIM

Orphanet

GARD

Questions for Your Care Team

Questions for Your Care Team

FAQ

Frequently Asked Questions

Clinical Guidance

Explore clinical features

Penetrance

Differential Diagnosis

Clinical Trials

L-ferritin deficiency

Overview

Clinical Presentation

Genetic Landscape

Diagnosis

Diagnostic Criteria

Suggestive Findings

Treatment

Management Guidelines

Prognosis

Surveillance Guidelines

Research Landscape

Recent Publications

Medical References

External Resources

OMIM

Orphanet

GARD

Related Diseases

Questions for Your Care Team

Questions for Your Care Team

FAQ

Frequently Asked Questions

What is L-ferritin deficiency?

What are the symptoms of L-ferritin deficiency?

What causes L-ferritin deficiency?

How is L-ferritin deficiency inherited?

How rare is L-ferritin deficiency?

How is L-ferritin deficiency diagnosed?

Are there treatments for L-ferritin deficiency?

What complications can arise from L-ferritin deficiency?

How does L-ferritin deficiency affect daily life?

What is the long-term outlook for someone with L-ferritin deficiency?

Are there any specialists recommended for managing L-ferritin deficiency?

Clinical Guidance

Explore clinical features

Penetrance

Differential Diagnosis

Clinical Trials