NEET PG / USMLE – MCQ 4

A 72-year-old man who is a retired construction worker comes to the physician because he has had a lesion on his face for 3 months. Physical
examination shows a 6-mm, red, ulcerated lesion with heaped borders. A biopsy specimen of the lesion shows atypical, dysplastic keratinocytes
within the epidermis and dermis. Which of the following is the most likely diagnosis?
(A) Actinic keratosis
(B) Discoid lupus erythematosus
(C) Melanoma
(D) Mycosis fungoides
(E) Squamous cell carcinoma

Correct answer : (E) Squamous cell carcinoma

Explanation: History of sun exposure (UV light), morphology and histology are characteristic of squamous cell carcinoma.


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5 Comments
  1. Kartick

    Squamous cell CA

  2. Mansingh parihar

    Nic

  3. Mansingh parihar

    Ur work is very gud.

  4. nilaxi

    a ?

  5. ramya

    i think the ans is a with respect to his age ,description of the lesion n also duration.moreover it has been mentioned that the cells r n the epidermis n dermis and r dysplastic scc presents with foul smelling ulcer which is not mentioned n moreover actinic keratosis is a precursor for scc i go 4 a actually it is a close one need 2 wait 4 the ans