A Guinea Pig as a Source of Infection
A 9-year-old girl presented to us with pruritic, coin-sized, marginated, erythemato-squamous plaques in the perioral and mental regions and a similar efflorescence on the medial surface of the right thigh. The lesions were characterized by mid-lamellar, whitish-yellow desquamation and rare, small pustules at the periphery. A mycological preparation of native desquamated skin from an affected area was found to contain septated hyphae when viewed under the microscope. PCR and fungal culture confirmed a dermatophytosis with Trichophyton benhamiae (formerly called Trichophyton species of Arthroderma benhamiae). Local treatment of the affected areas with ciclopirox olamine twice per day was initiated. The infection was traced to a guinea pig that the patient had been keeping as a pet for just a few weeks; the first skin changes arose three weeks after the acquisition of the animal. Although it had no fur alterations, it nonetheless had to be given antimycotic treatment by a veterinarian. Marked infections and tinea capitis require systemic treatment with terbinafine (or, alternatively, fluconazole or itraconazole). Our patient was asymptomatic after six weeks of treatment.
Till Weidner, PD Dr. rer. nat. et med. Uta-Christina Hipler, Prof. Dr. med. Peter Elsner, Klinik für Hautkrankheiten, Universitätsklinikum Jena, firstname.lastname@example.org.
Conflict of interest statement: The authors state that they have no conflict of interest.
Translated from the original German by Ethan Taub,M.D.
Cite this as: Weidner T, Hipler UC, Elsner P: A guinea pig as a source of infection. Dtsch Arztebl Int 2018; 115: 681. DOI: 10.3238/arztebl.2018.0681