What is lichen amyloidosis?
Lichen amyloidosis is a chronic pruritic skin disorder characterized by amyloid deposition in the skin without evidence of visceral involvement. First described by Gutmann in 1928,1 it is seen most frequently in Southeast Asia,2 China,3 and South America.
What is the best treatment for lichen amyloidosis?
Therapeutic management of lichen amyloidosis comprises the use of topical treatments, such as glucocorticosteroids, calcipotriene, hydrocolloid dressings, psoralen plus ultraviolet A (PUVA) photochemotherapy, intralesional glucocorticosteroids, systemic treatments, such as acitretin, cyclophosphamide, and cyclosporine.
Is lichen amyloidosis an autoimmune disease?
THE AUTOIMMUNE CONSTELLATION IN LICHEN AMYLOIDOSIS.
How is lichen amyloidosis diagnosed?
The diagnosis can usually be made clinically, particularly in patients with the classic presentation. A skin biopsy should be reserved for evolving lesions. Lichen amyloidosis is a chronic condition without potential for malignant transformation.
Is there a test for amyloidosis?
Tests for amyloidosis include: Blood or urine test to detect the amyloid proteins. Bone marrow test and/or biopsy (tissue sample) to check for amyloid deposits.
Is lichen amyloidosis fatal?
Very rarely, nodular amyloidosis progresses to a life-threatening condition called systemic amyloidosis, in which amyloid deposits accumulate in tissues and organs throughout the body.
Can a dermatologist diagnose amyloidosis?
With the appropriate investigations the dermatologist may thus have the opportunity to diagnose amyloidosis at an early stage. Primary systemic amyloidosis (AL amyloidosis) is a plasma-cell dyscrasia of unknown cause.
What lab tests indicate amyloidosis?
Diagnostic testing for AL amyloidosis involves blood tests, urine tests and biopsies. Blood and/or urine tests can indicate signs of the amyloid protein, but only bone marrow tests or other small biopsy samples of tissue or organs can positively confirm the diagnosis of amyloidosis.
Where can I get a amyloidosis biopsy?
A tissue sample may be taken and checked for signs of amyloidosis. The biopsy may be taken from the fat under the skin on your abdomen (fat aspirate), bone marrow, or an affected organ — such as your liver or kidney.
Can a CBC detect amyloidosis?
Blood tests No blood test is diagnostic of AL amyloidosis but some test results can raise or support the suspicion. Full blood count (FBC) – There are no specific findings in this test that can show whether or not AL amyloidosis is present.