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Multiple cutaneous metaplastic synovial cysts.

S R Singh1, A S Ma, A Dixon

  • 1Division of Dermatology, Kansas City VA Medical Center, Missouri, USA.

Journal of the American Academy of Dermatology
|July 30, 1999
PubMed
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Multiple cutaneous metaplastic synovial cysts, a rare skin lesion, were observed in a rheumatoid arthritis patient. This case highlights a new presentation of this recently described condition.

Area of Science:

  • Dermatopathology
  • Histopathology
  • Rheumatology

Background:

  • Cutaneous metaplastic synovial cysts are recently described subcutaneous lesions.
  • Typically presenting as solitary, tender nodules, their etiology remains unclear, though trauma is suspected.
  • Histopathologic features include cystic structures with villous projections and synovium-like lining.

Observation:

  • A case report of a 72-year-old male with rheumatoid arthritis presenting with multiple, bilateral cutaneous metaplastic synovial cysts.
  • This represents the first documented instance of multiple lesions in a single patient.
  • The patient's history of rheumatoid arthritis may be relevant to the cyst development.

Findings:

  • The patient exhibited multiple, bilateral lesions, deviating from the typical solitary presentation.

Related Experiment Videos

  • Histopathological examination confirmed the characteristic features of cutaneous metaplastic synovial cysts.
  • The presence of rheumatoid arthritis in this patient suggests a potential association.

    • Implications:

    • This case expands the known clinical spectrum of cutaneous metaplastic synovial cysts.
    • It suggests that underlying systemic conditions, such as rheumatoid arthritis, might influence the development of these lesions.
    • Further research is warranted to explore potential links between autoimmune diseases and metaplastic synovial cyst formation.