Bullous Diseases · Pathology

Which histological feature is referred to as the 'tombstone' appearance in Pemphigus Vulgaris?

  1. A single layer of basal keratinocytes remains attached to the basement membrane
  2. Apoptotic keratinocytes scattered throughout the stratum corneum
  3. Dermal papillae projecting into the blister cavity without epidermis
  4. Necrotic cellular debris accumulating at the base of an extensive subepidermal split
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Correct answer: A single layer of basal keratinocytes remains attached to the basement membrane

In Pemphigus Vulgaris, acantholysis occurs just above the basal layer. The basal cells remain attached to the basement membrane via hemidesmosomes, appearing like a row of tombstones at the base of the vesicle.

Difficulty: Medium Question 3 of 20

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