Primary cutaneous amyloidosis

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Primary cutaneous amyloidosis
Synonyms	PCA
Pronounce	N/A
Specialty	Dermatology
Symptoms	Itching, hyperpigmentation, lichenification
Complications	N/A
Onset	Usually in adulthood
Duration	Chronic
Types	N/A
Causes	Deposition of amyloid in the skin
Risks	Genetic predisposition, chronic friction
Diagnosis	Skin biopsy, clinical examination
Differential diagnosis	Lichen planus, post-inflammatory hyperpigmentation
Prevention	N/A
Treatment	Topical corticosteroids, laser therapy, dermabrasion
Medication	N/A
Prognosis	N/A
Frequency	More common in Southeast Asia and Latin America
Deaths	N/A

Macular amyloidosis

Histopathology of lichen amyloidosis with Congo red

Lichen amyloidosis on leg

Lichen amyloidosis on leg

Primary cutaneous amyloidosis is a form of amyloidosis, a group of diseases in which an abnormal protein, known as amyloid, builds up in tissues and organs. In primary cutaneous amyloidosis, the skin is the organ that is primarily affected.

Symptoms

The symptoms of primary cutaneous amyloidosis can vary, but often include itching, changes in skin color, and the development of raised skin lesions. These symptoms are typically chronic and can significantly impact a person's quality of life.

Causes

The exact cause of primary cutaneous amyloidosis is unknown. However, it is believed to be related to an abnormal response of the skin to injury or inflammation. Some studies have suggested a genetic component, as the condition often runs in families.

Diagnosis

Diagnosis of primary cutaneous amyloidosis is typically made through a combination of clinical examination and skin biopsy. The biopsy can reveal the presence of amyloid in the skin.

Treatment

Treatment for primary cutaneous amyloidosis is aimed at relieving symptoms and preventing further accumulation of amyloid in the skin. This can include the use of topical creams, oral medications, and in some cases, light therapy.

See also

• Amyloidosis
• Skin biopsy
• Light therapy

References

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