One sees erythema with a peripheral annular slightly scaly edge in the groin and extending onto the inner thighs ( Fig 2.4.0.-1) and even the buttocks. The penis and scrotum are not affected. This feature is important in distinguishing tinea cruris from other eruptions in the groin as most other eruptions will affect the scrotum.
FIG. 240-1. Tinea cruris. Erythema with a more prominent, arciform leading edge on the inner thighs is typical of tinea cruris.
Other common disorders to be included in the differential diagnosis include candidiasis, erythrasma, lichen simplex chronicus, allergic and irritant contact dermatitis, and extramammary Paget's disease. A more extensive list of inflammatory processes of the intertriginous areas can be found in T.a.bl..e 24.0.-..1.. See the description under intertrigo for a comparison of the features of these disorders.
TABLE 240-1 Inflammatory Disorders of the Skin Folds
The diagnosis is established by a positive potassium hydroxide (KOH) examination. A KOH preparation will demonstrate branching hyphae ( Fig 239:4). If a KOH
examination is negative, one of the other above-mentioned disorders should be considered. Treatment
Antifungal creams such as clotrimazole (Lotrimin or Mycelex), ketoconazole (Nizoral), or econazole (Spectazole) twice a day is the initial treatment. Clotrimazole is suggested initially as it is of low cost and is nonprescription. Spectazole also has antibacterial properties and is preferred if maceration is present. Treatment also includes keeping the affected area as cool and dry as possible. Wearing loose-fitting clothing is recommended. Antifungal powders such as Zeasorb AF should be used on a daily basis to prevent recurrences.
Was this article helpful?
Rosacea and Eczema are two skin conditions that are fairly commonly found throughout the world. Each of them is characterized by different features, and can be both discomfiting as well as result in undesirable appearance features. In a nutshell, theyre problems that many would want to deal with.