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Plasmoacanthoma.

Bruna Backsmann Braga1, Alexandre Ozores Michalany2,3, Jayme de Oliveira2

  • 1Clínica privada - São Paulo (SP), Brazil.

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Plasmoacanthoma, a rare verrucous tumor with plasma cell infiltrates, is often considered a reactive proliferation. This case highlights the underreported nature of this mucocutaneous disorder.

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Area of Science:

  • Dermatology
  • Oncology
  • Immunology

Background:

  • Plasmoacanthoma is an exceptionally rare verrucous tumor affecting periorificial areas.
  • It is characterized by dense dermal plasmacytic infiltrates.
  • Often classified as a reactive plasma cell proliferation, its etiology is speculative.

Observation:

  • A case report of a 40-year-old woman with a lobulated, warty lesion on the lower lip is presented.
  • Histopathological examination of the lesion was consistent with plasmoacanthoma.
  • This highlights the underreported nature of the disease in dermatological literature.

Findings:

  • The case study details a patient diagnosed with plasmoacanthoma.
  • The tumor exhibited typical features of dense dermal plasmacytic infiltrates.
  • The diagnosis was confirmed via biopsy.

Implications:

  • This case contributes to the limited literature on plasmoacanthoma.
  • Further research into the etiology of plasmoacanthoma is warranted.
  • Increased awareness may improve diagnosis and management of this rare condition.