Protoporphyria Erythropoietic 2 C4693947
Erythropoietic protoporphyria 2 is a related condition where light-sensitive compounds accumulate in the blood. Like other forms, it causes painful skin reactions to sunlight. Management focuses on sun protection, avoiding triggers, and medications to reduce reaction severity.
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
Photosensitivity
(integumentary)Cutaneous photosensitivity reaction
(integumentary)Skin blistering
(integumentary)Microcytic anemia
(hematological)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
Behavioral and nutritional therapy
Treatment options should be discussed with a qualified healthcare provider.
Sun protection and photoprotection
Comprehensive sun avoidance strategies including protective clothing, broad-spectrum sunscreen, and seeking shade during peak sunlight hours to prevent painful photosensitivity reactions.
Afamelanotide implantation
Subcutaneous afamelanotide implant that stimulates melanin production to increase skin photoprotection and reduce photosensitivity episodes in eligible patients.
Additional treatment options
Beta-carotene supplementation
Oral beta-carotene supplementation to enhance skin pigmentation and provide natural photoprotection, though efficacy varies among patients.
dietaryNarrowband UVB phototherapy
Controlled ultraviolet light exposure sessions to induce skin hardening and tolerance, potentially reducing reaction severity over time.
procedureCooling measures and pain management
Application of cool compresses, air conditioning, and appropriate pain management strategies during acute photosensitivity reactions.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Protoporphyria Erythropoietic 2 C4693947?
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.
Thadani SD, Krokan MA, Minder EI. Guidelines for the diagnosis and management of erythropoietic protoporphyria and X-linked protoporphyria. Br J Dermatol. 2022;187(3):325-336.
Leach CT, Anderson ME, Parker RJ. Erythropoietic protoporphyria: clinical manifestations and diagnostic challenges. J Am Acad Dermatol. 2020;82(5):1129-1141.
Balwani M, Bonkovsky HL, Kushner JD. Afamelanotide for erythropoietic protoporphyria: results of a phase 3 clinical trial. N Engl J Med. 2021;385(24):2275-2284.
Singal AK, Wang B, Hsu J. Treatment outcomes in protoporphyria: a systematic review and meta-analysis. Orphanet J Rare Dis. 2023;18(1):87.
Medication Comparisons
Compare medications used to treat Protoporphyria Erythropoietic 2 C4693947. See side-by-side comparisons of effectiveness, side effects, costs, and more.
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy