1/4. Bilateral tinea nigra plantaris and tinea nigra plantaris mimicking melanoma.Tinea nigra, a superficial fungal infection caused by Phaeoannellomyces werneckii, presents as a hyperpigmented, nonscaling macule of variable size and shape. Typically lacking induration, erythema, or pruritus, these "ink spot" lesions may resemble junctional nevi or malignant melanoma. Rapid, noninvasive diagnosis can be provided by potassium hydroxide examination, demonstrating numerous large, dematiaceous hyphae.- - - - - - - - - - ranking = 1keywords = erythema (Clic here for more details about this article) |
2/4. erythema nodosum in patients with tinea pedis and onychomycosis.To document association between erythema nodosum and concomitant fungus infection, we studied seven white women seen during a six-year period in our office practice. Five patients are presented. Unilateral erythema nodosum occurred in three patients on the same side as unilateral tinea. Tests with potassium hydroxide (KOH), cultures of nodules on Sabouraud agar and dermatophyte test medium (DTM), skin biopsy, and clinical examination ruled out nodular granulomatous perifolliculitis of Wilson. Lesions simulating erythema nodosum were produced when trichophyton antigen was injected subcutaneously in the lower legs. All nodose and fungal lesions cleared after griseofulvin therapy. Fungus infection of feet or nails should be considered a possible cause of erythema nodosum when no other cause is apparent.- - - - - - - - - - ranking = 475.94288516148keywords = erythema nodosum, nodosum, erythema (Clic here for more details about this article) |
3/4. tinea pedis masking a Kaposi's sarcoma.A 67-year-old white man presented with bilateral blancing erythema and scale of the second through fifth toes extending on to the dorsa and moccasin areas of the feet for two years. The right great toe had subungual debris. No cultures or KOH studies were recorded. A course of tolnaftate cream therapy was initiated. Two years later, the patient returned and complained of no change in his condition. Previously recorded descriptions and diagrams in the medical record confirmed his report. At this time, KOH preparations from the skin and nail were positive for hyphae. He refused to accept medical recommendations for a fungal culture and griseofulvin therapy. He, therefore, was instructed to use miconazole cream twice daily as alternative treatment. One year later, physical examination was unchanged. KOH preparations and fungal cultures of the skin were twice negative. A 4-mm punch skin biopsy specimen of the erythematous patch on the dorsum of the foot was performed. hematoxylin and eosin-stained sections revealed a proliferating vascular process in the cutis. Many spindle-shaped cells formed vascular slits and endothelial-lined spaces in which there were erythrocytes. No hyphae were seen. One year after the biopsy specimen was taken, the erythema of his feet persists, and a few nonblanching nodules are visible. He declined further studies.- - - - - - - - - - ranking = 3keywords = erythema (Clic here for more details about this article) |
4/4. trichophyton verrucosum in indiana. infection in two cases.Presented herein are two cases of dermatomycosis that occurred in indiana. The causative agent in each case was trichophyton verrucosum. The first patient had onychomycosis, tinea pedis, and tinea cruris. Although of long duration, his condition cleared readily after the administration of griseofulvin. The second patient, a recent immigrant from yugoslavia, had erythematous, minimally scaling lesions was more typical, since T. verrucosum is commonly found on exposed parts of the skin. In this patient, also, lesions cleared after the administration of griseofulvin therapy.- - - - - - - - - - ranking = 1keywords = erythema (Clic here for more details about this article) |