Infections: tinea imbricata: practice question

A Dermatology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Dermatology · Infections: tinea imbricata

Sample item

Concentric, overlapping rings of scaling that form a lamellar pattern on the trunk are produced by which dermatophyte?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

A. Trichophyton concentricum

Tinea imbricata, caused by Trichophyton concentricum, shows concentric rings of scale and is chronic, endemic in parts of the Pacific and Southeast Asia and reported from northeast India. It responds to oral terbinafine or itraconazole. Topical therapy alone is often insufficient.

Option by option

  • A. Trichophyton concentricum (correct)

    Correct. T. concentricum causes tinea imbricata.

  • B. Epidermophyton floccosum

    E. floccosum affects groin, feet and nails.

  • C. Trichophyton verrucosum

    T. verrucosum is zoophilic and causes inflammatory lesions in farm workers.

  • D. Microsporum canis

    M. canis causes tinea capitis and corporis from pets.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Dermatology questions

Questions about this Dermatology question

What is the answer to this Dermatology question?

The best answer is A, Trichophyton concentricum. Tinea imbricata, caused by Trichophyton concentricum, shows concentric rings of scale and is chronic, endemic in parts of the Pacific and Southeast Asia and reported from northeast India.

Why is "Epidermophyton floccosum" not the answer?

E. floccosum affects groin, feet and nails.

Why is "Trichophyton verrucosum" not the answer?

T. verrucosum is zoophilic and causes inflammatory lesions in farm workers.

Why is "Microsporum canis" not the answer?

M. canis causes tinea capitis and corporis from pets.

What concept does this question test?

It tests Infections: tinea imbricata in Dermatology. It responds to oral terbinafine or itraconazole. Topical therapy alone is often insufficient.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Infections: tinea imbricata?

Learn each condition by its primary lesion, site and signature sign. Then use the flashcards and the other Dermatology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.