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Merck Manual
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Professional
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Endocrine and Metabolic Disorders
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Porphyrias
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Porphyrias
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Overview of Porphyrias
Etiology
Pathophysiology
Diagnosis
Secondary Porphyrinuria
Secondary porphyrinuria references
Acute Porphyrias
Precipitating Factors
Symptoms and Signs
The acute porphyric attack
Subacute and chronic symptoms
Skin symptoms in variegate porphyria and hereditary coproporphyria
Late complications of acute porphyrias
Symptoms and signs references
Diagnosis
Acute attack
Determination of acute porphyria type
Family studies in acute porphyrias
Prognosis
Treatment
Recurrent attacks
Treatment references
Prevention
Recurrent or predictable attacks
Prevention references
Key Points
More Information
Overview of Cutaneous Porphyrias
Porphyria Cutanea Tarda
Pathophysiology
Pseudoporphyria
Symptoms and Signs
Diagnosis
Diagnosis references
Treatment
Treatment references
Prevention
Key Points
More Information
Erythropoietic Protoporphyria and X-linked Protoporphyria
Etiology
Etiology references
Symptoms and Signs
Symptoms and signs reference
Diagnosis
Treatment
Treatment reference
Key Points
More Information