Tinea corporis on the stump leg with Trichophyton rubrum infection

Xin Ran,Kaiwen Zhuang,Yuping Ran

doi:10.1016/j.mmcr.2015.07.001

Xin Ran, Kaiwen Zhuang + Show 1 more

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https://doi.org/10.1016/j.mmcr.2015.07.001

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Abstract

We report a case of tinea corporis on amputated leg stump caused by Trichophyton rubrum. The patient, a 54-year-old male, experienced a serious traffic accident, resulted his right leg amputated 3 years ago. Since then prosthesis was fitted and protective equipment of silicone stocking was worn for the stump. He consulted with circular, patchy and scaly erythemas with itching on his right below knee amputation stump for 2 months. The diagnoses of tinea corporis on the stump was made based on a positive KOH direct microscopic examination, morphologic characteristics and sequencing of the internal transcribed spacers (ITS) 1 and 4, confirmed that the isolate from the scales was T. rubrum. The patient was cured with oral terbinafine and topical naftifine-ketaconazole cream following 2% ketaconazole shampoo wash for 3 weeks. Long times using prosthesis together with protective equipment of silicone stocking, leading to the local environment of airtight and humid within the prosthesis favors T. rubrum infection of the stump could be considered as the precipitating factors.

Highlights

Trichophyton rubrum is an anthropophilic fungus which frequently causes acute or chronic inflammatory tinea corporis, but rarely reported occurring on post-amputation stumps in patients
We present a case of tinea corporis involving T. rubrum on the leg stump of a patient using prosthesis together with protective equipment
As the commonly implicated pathogenic dermotophyte, T. rubrum is the most isolated from tinea corporis [4,5], and it may be occurring as perfolliculitis in patient post-amputation stump [6]

Summary

Introduction

1. Introduction Trichophyton rubrum is an anthropophilic fungus which frequently causes acute or chronic inflammatory tinea corporis, but rarely reported occurring on post-amputation stumps in patients. We present a case of tinea corporis involving T. rubrum on the leg stump of a patient using prosthesis together with protective equipment. A 54-year-old male presented to our clinic (day 0) with circular, patchy and scaly erythemas with itching on his right below knee amputation stump, which started at day À 60 (Fig. 1a). His right leg was amputated after a serious traffic accident.

Results

Conclusion