Dermatology: Lesions and Melanoma ABCDEs

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Questions and Answers

What condition is characterized by a flat lesion of altered pigmentation?

  • Melanoma (correct)
  • Seborrheic keratosis
  • Squamous cell carcinoma
  • Lichen planus

Which of the following is considered a differential diagnosis for a sarcoid rash?

  • Contact dermatitis
  • Psoriasis
  • Alopecia areata
  • Leprosy (correct)

Mycosis fungoides is classified under which category of medical conditions?

  • Type of lymphoma (correct)
  • Fungal infection
  • Autoimmune disease
  • Viral infection

The term 'ABCDEs' in relation to melanoma stands for asymmetry, border irregularity, color variation, diameter, and what else?

<p>Evolution (B)</p> Signup and view all the answers

Which condition is NOT commonly associated with flat lesions of altered pigmentation?

<p>Basal cell carcinoma (B)</p> Signup and view all the answers

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Study Notes

Flat Lesion of Altered Pigmentation

  • Characterized by flat and discolored areas on the skin.
  • Can indicate various dermatological conditions.

ABCDEs of Melanoma

  • A: Asymmetry - look for irregular shapes.
  • B: Border - edges that are irregular or not well-defined.
  • C: Color - uneven shades of brown, black, or tan.
  • D: Diameter - typically larger than 6mm.
  • E: Evolving - changes in size, shape, or color over time.

Differential Diagnosis for Sarcoid Rash

  • May mimic conditions such as leprosy and tuberculosis.
  • Important to distinguish for accurate diagnosis and treatment.

Mycosis Fungoides

  • A form of cutaneous T-cell lymphoma.
  • Affects the skin, presenting as patches or plaques that may resemble eczema or psoriasis.
  • May progress to more severe stages if untreated.

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