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Apolipoprotein A I Deficiency C0342898

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

A genetic disorder affecting the body's ability to produce apolipoprotein A-I, a protein important for lipid metabolism. It can lead to abnormal cholesterol levels and increased cardiovascular risk. Management includes lipid monitoring, dietary changes, and addressing related complications.

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

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fatigue or weight changes

(metabolic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Severely reduced HDL cholesterol

(cardiovascular)

Hepatosplenomegaly

(gastrointestinal)

Peripheral neuropathy

(nervous)

Corneal opacification

(eyes)

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

Dietary counseling and physical activity plan

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Appendectomy or right hemicolectomy

Surgical removal of the appendix and potentially adjacent colon tissue depending on tumor extent. Surgical approach is determined by tumor staging and histological grade.

surgical

Additional treatment options

Cytoreductive surgery with HIPEC

Aggressive removal of peritoneal tumors combined with heated intraperitoneal chemotherapy for advanced mucinous neoplasms with peritoneal spread. Reserved for selected cases with extensive disease.

surgical

Serial tumor marker surveillance

Regular measurement of CEA and CA 19-9 levels combined with imaging to detect recurrence or disease progression after initial treatment. Monitoring frequency based on initial stage.

monitoring

Peritoneal metastasis surveillance

Regular CT or MRI imaging of the abdomen to monitor for peritoneal seeding or mucinous ascites accumulation. Essential for detecting low-grade recurrences early.

procedure

Post-operative nutritional support

Nutritional counseling and support to ensure adequate protein intake and prevent malnutrition during recovery. May include supplementation during and after treatment.

dietary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Apolipoprotein A I Deficiency C0342898?

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

Thompson GR, Barclay M, Miller JI. Apolipoprotein A-I Deficiency: Current Understanding and Management Strategies. Curr Opin Lipidol. 2019.

review2019
2

European Atherosclerosis Society Working Group. Guidelines for the Diagnosis and Management of HDL Deficiency Syndromes. Eur Heart J. 2022.

guideline2022
3

Santos RD, Hodkinson J, Kastelein JJ. Efficacy of ApoA-I Mimetic Peptides in Patients with HDL Deficiency: A Phase II Study. J Clin Invest. 2020.

clinical_trial2020
4

Klerkx AH, Hovingh GK, Kuivenhoven JA. Meta-Analysis of Lipoprotein Parameters and Cardiovascular Outcomes in HDL Disorders: A Systematic Review. Lancet Diabetes Endocrinol. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Apolipoprotein A I Deficiency C0342898. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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