Immunoreactivity to desmin in secretory epithelium of eccrine sweat glands

The finding of immunoreactivity to desmin in eccrine sweat glands is reported. Two monoclonal anti-desmin antibodies of the same clone (33) produced a distinct positivity in the secretory cells of the sweat glands in 15/16 biopsies. No immunoreactivity for desmin was found in control sections from apocrine sweat glands, salivary, mammary, prostate and lacrimal glands.