To the Editor.—
Recently, the rheumatologist has been interested in capillaroscopy of the nailbeds as a means of attempting to evaluate possible systemic involvement in scleroderma and in Raynaud's disease. Capillaroscopy has long been of interest to the dermatologist for examination of the early lesions of psoriasis, lichen planus, and lupus erythematosus, the vascular network of basal cell epitheliomas, vulvar and vaginal intraepithelial neoplasia (by the colposcope), changes in superficial vascular patterns after laser exposures, and in investigative dermatology.1One reason for the relative lack of interest in clinical capillaroscopy has been the unavailability of inexpensive flexible instrumentation. The increasing popularity of easily available pocket microscopes for hobbyists has produced microscopes that can be used for capillaroscopy. Two examples are the Panasonic Light Scope produced by the Matsushita Electric Industries Ltd of Japan with ×30 magnification and the Micro Mike of Dumarier Co with ×40 magnification (Figure). Both microscopes use AA
Goldman L. A Simple Portable Capillaroscope. Arch Dermatol. 1981;117(10):605–606. doi:10.1001/archderm.1981.01650100005008
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