To the Editor:
Localized cutaneous amyloidoses can be divided into primary cutaneous amyloidosis and secondary cutaneous amyloidosis. Primary cutaneous amyloidosis is defined as deposition of amyloid in the skin in the absence of systemic involvement. Secondary cutaneous amyloidosis is associated with secondary amyloid deposition and is accompanied by skin neoplasms such as seborrheic keratosis, Bowen’s disease, basal cell carcinoma, porokeratosis, and trichoepithelioma. The cutaneous amyloid, so-called “amyloid-K,” is reported to be derived from cytokeratins1–3. We describe a case of amyopathic dermatomyositis (ADM) associated with cutaneous amyloidosis.
A 61-year-old woman with dyspnea and general fatigue was referred to our hospital. Two weeks before, she had developed fatigue and dyspnea. On admission, examination showed Raynaud’s phenomenon, Gottron’s sign, and periungual …
Address reprint requests to Dr. Y. Taniguchi, Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan. E-mail: jm-yoshii{at}kochi-u.ac.jp