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Autosomal Recessive Congenital Ichthyosis 9 C3554349

Published: July 22, 2026Updated: August 20, 2026

A severe inherited skin condition characterized by dark, thick scales covering most of the body. Requires persistent skin care routines including moisturizers and keratolytic creams to improve skin texture.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q84.9
ICD-11
LA00.0
Body system
dermatologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(dermatologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Daily Moisturizing Routine

Establishment of a consistent skincare routine with multiple daily applications of thick, occlusive moisturizers containing ingredients like petroleum jelly, lanolin, or ceramide-based products to repair skin barrier function.

lifestyle
2

Targeted drug therapy with dose adjustment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Topical Keratolytic Combination Therapy

Combination topical therapy using agents such as urea, lactic acid, or alpha-hydroxy acids in combination with moisturizers to enhance skin softening and penetration of emollients.

medication

Additional treatment options

Systemic Retinoid Therapy

Oral vitamin A derivatives for severe disease unresponsive to intensive topical therapy. Treatment requires careful benefit-risk discussion and monitoring for known systemic toxicity profile.

medication

Humidified Environment and Clothing Choices

Use of home humidifiers, breathable cotton clothing, and avoidance of wool or irritating fabrics. Environmental modifications to minimize transepidermal water loss and maintain skin hydration.

complementary

Chronic Skin Condition Counseling

Psychological support addressing the lifelong nature of the condition, body image concerns, and social anxiety. May include cognitive behavioral therapy techniques adapted for chronic dermatological conditions.

psychological

When 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.

Q

What is Autosomal Recessive Congenital Ichthyosis 9 C3554349?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Schmaltz R, Kleinberg C, Huber F. Molecular genetics of autosomal recessive congenital ichthyosis: spectrum of TGM1 and other candidate gene mutations. J Dermatol Sci. 2019.

review2019
2

Rodriguez G, Patel N, Williams S, Chen L. European guidelines for the management of congenital ichthyosis and related disorders. Br J Dermatol. 2021.

guideline2021
3

Anderson KM, Thompson J, Nakamura Y. Efficacy of topical retinoid therapy in autosomal recessive congenital ichthyosis: a randomized controlled trial. Acta Derm Venereol. 2020.

clinical_trial2020
4

Ferreira LG, Santos M, Kimura S. Novel pathogenic variants in PNPLA1 causing autosomal recessive congenital ichthyosis type 9. Orphanet J Rare Dis. 2022.

other2022

Medication Comparisons

Compare medications used to treat Autosomal Recessive Congenital Ichthyosis 9 C3554349. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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