Pinch Purpura in Adult Colloid Milium-A Case Report

Colloid milium is a rare cutaneous deposition disorder characterized by the presence of asymptomatic multiple dome-shaped semi-translucent waxy yellowish or skin-colored papules. It is commonly seen on the face and dorsum of forearms and arms due to chronic sun exposure. Nodular amyloidosis and primary systemic amyloidosis mimic adult colloid milium more closely. They share indistinguishable common features clinically and histologically. Purpura following trivial injury is a cardinal feature of primary systemic amyloidosis. Here, we are reporting a case of adult colloid milium, presented with waxy papules and purpura involving the dorsa of the lower half of the forearms and hands which is confirmed by histopathological and immunohistochemical studies.

A Case of Multiple Myeloma-Associated Systemic Amyloidosis with Multiple Skin Manifestations as the First Symptom

An 81-year-old woman presented with purpura, petechiae, ecchymoses, flesh or brown-colored waxy, smooth, papules, warty plaque, nail dystrophy and palmodigital erythematous swelling for more than 6 years. She was diagnosed as multiple myeloma-associated systemic amyloidosis after skin subcutaneous histopathological examinations and relevant examinations such as blood and bone marrow. Systemic amyloidosis is closely related with multiple myeloma (MM). Multiple and pleomorphic skin lesions are not usual among patients with multiple myeloma or systemic amyloidosis.

Early Dermoscopic Signs Leading to Primary Systemic Amyloidosis' Diagnosis: A Case Report

Amyloidosis is primarily extracellular deposition of insoluble polymeric protein fibrils in tissues and organs. About 25 percent of patients with primary systemic amyloidosis have associated skin lesions in the form of papules, plaques or nodules. Dermoscopy of these skin lesions reveals characteristic glomerular vessels on a red to pink background. Here we present unique dermoscopic features of cutaneous lesions in a case of primary systemic amyloidosis.

Hepatocyte Growth Factor and Primary Systemic Amyloidosis

A 75-year-old-man experienced liver dysfunction and was diagnosed with decompensated liver cirrhosis. His serum hepatocyte growth factor (HGF) was very high (16.24 ng/ml). Because the etiology was unclear, we considered the possibility of amyloidosis. Biopsy of the mucosa of the stomach, duodenum and rectum demonstrated amyloid deposition. From the findings of Congo red staining and immunohistochemical analyses, we made a diagnosis of systemic amyloid light-chain amyloidosis. Unfortunately, the patient died one month after the diagnosis. We considered that serum HGF was useful for the diagnosis and prediction of prognosis of primary systemic amyloidosis.