pseudoimbricata due to Trichophyton mentagrophytes: a rare case report

Sumir Kumar, Nidhi Kamra, Bharat Bhushan Mahajan


Tinea pseudoimbricata is characterized by concentric scaly rings simulating tinea imbricata but caused by dermatophytes other than Trichophyton concentricum. We report a unique case of tinea pseudoimbricata, its pathogenesis and review of previously reported cases. A 1.5-year-old baby developed concentric rings of scaly lesions over groins and buttocks following use of topical corticosteroids for 1 month. Mycological studies were performed to establish the diagnosis. Diagnosis of tinea pseudoimbricata was made on the basis of morphology of lesions and was confirmed by isolation of T. mentagrophytes on culture. Complete clinical and mycological cure was obtained with topical 1% sertaconazole given for 4weeks.


Tinea imbricata, tinea pseudoimbricata, Trichophyton mentagrophytes

Full Text:



Bonifaz A, Archer-Dubon C, Saúl A. Tinea imbricata or Tokelau. Int J Dermatol. 2004;43:506-10.

Hay RJ, Reid S, Talwat E et al. Immune responses of patients with tinea imbricata. Br J Dermatol. 1983;108:581-6.

Wagner DK, Sohnle PG. Cutaneous defenses against dermatophytes and yeasts. Clin Microbiol Rev. 1995;8:317-35.

Kaufman G, Horwitz BA, Duek L, Ullman Y, Berdicevsky I. Infection stages of the dermatophyte pathogen Trichophyton: microscopic characterization and proteolytic enzymes. Med Mycol. 2007;45:149-55.

Lee KH, Lee ES, Kang WH, Lee S. An unusual clinical manifestation of tinea corporis caused by Microsporon ferrugenium. Korean J Dermatol. 1987;25:383-8.

Sun PL, Ho HT. Concentric rings: An unusual presentation of tinea corporis caused by Microsporum gypseum. Mycoses. 2006;49:150-1.

Narang K, Pahwa M, Ramesh V. Tinea capitis in the form of concentric rings in an HIV positive adult on antiretroviral treatment. Indian J Dermatol. 2012;57:288-90.

Lim SP, Smith AG. Tinea pseudoimbricata: Tinea corporis in a renal transplant recipient mimicking the concentric rings of tinea imbricata. Clin Exp Dermatol. 2003;28:331-4.

Batta K, Ramlogan D, Smith AG et al. Tinea indecisiva may mimic the concentric rings of tinea imbricata. Br J Dermatol. 2002;147:384.

Horque SR, Holden CA. Trichphyton tonsurans infection mimicking tinea imbricate. Clin Exp Dermatol. 2007;32:345-6.

Rao AG, Datta N. Tinea corporis due to Trichophyton mentagrophytes and Trichophyton tonsurans mimicking tinea imbricate. Indian J Dermatol Venereol Leprol. 2013;79:554.


  • There are currently no refbacks.

ISSN: 1560-9014