Abstract
Primary cutaneous amyloidosis is the deposition of amyloid in the skin without involvement of internal organs. It is easily diagnosed when presented in its typical manifestation. Atypical or rare clinical presentations can pose diagnostic difficulties. Poikiloderma-like cutaneous amyloidosis (PCA), a rare variant of primary cutaneous amyloidosis, was first reported in the literature in 1936 (1). It is characterised by: 1) poikilodermatous skin lesions; 2) lichenoid papules; 3) cutaneous amyloid deposit in the pigmented and lichenoid lesions; 4) light sensitivity; 5) short stature; and 6) other features such as blister formation or palmoplantar keratosis. Ogino coined the term PCA syndrome when these unusual features present early in life (2). We report a 26-year-old Chinese woman who presented with poikilodermatous skin lesions and was misdiagnosed as poikiloderma atrophica vasculare (PAV) on the basis of clinical appearance without any histological proof. The diagnosis of PCA was made after skin biopsy which showed amyloid deposits in the skin. This condition can easily be confused with other true poikiloderma skin diseases. Histology is important in confirming the diagnosis.
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