RT Book, Section A1 Usatine, Richard P. A2 Usatine, Richard P. A2 Smith, Mindy A. A2 Mayeaux, Jr., E.J. A2 Chumley, Heidi S. SR Print(0) ID 1164359537 T1 Tinea Capitis T2 The Color Atlas and Synopsis of Family Medicine, 3e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259862045 LK dermatology.mhmedical.com/content.aspx?aid=1164359537 RD 2024/10/06 AB An 11-year-old boy has a history of 2 months of progressive patchy hair loss (Figure 143-1). He has some itching of the scalp, but his mother is worried about his hair loss. Physical examination reveals alopecia with scaling of the scalp and broken hairs looking like black dots in the areas of hair loss. A KOH preparation is created by using a #15 scalpel to scrape some scale and small broken hairs onto a slide. With the help of a fungal stain and KOH, branching septate hyphae are seen under the microscope. The most likely cause of this tinea capitis is Trichophyton tonsurans; therefore 4 weeks of oral terbinafine is prescribed. The tinea capitis fully resolves and the hair does grow back over time.