A man in his 20s was referred to our department
because of the presence of a sticky material around the underarm hair for
approximately 1 year. The patient explained that he usually plays
soccer and sweats abundantly. He did not apply deodorant
or any other products in the underarm, and he ensured proper hygiene of the
area. The lesions did not produce itching.
Physical examination revealed creamy yellow concretions along several hair
shafts, in both armpits, with strong axillary odor (Figure, A). These
concretions did not disappear when cleansed with alcohol. Hair samples
of the affected areas were sent for microscopy examination (Figure, B-D) and
microbiologic culture. Treatment with antiseptic soap and a miconazole nitrate
cream was initiated. After 2 weeks of treatment, the lesions had resolved and
the patient had normal axillary hairs. Confirmation of the
suspected diagnosis was made with the results of complementary tests.