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Vulvar hibernoma.

Anuradha Sheth1, Milan Terzic, Nebojsa Arsenovic

  • 1Department of Cellular Pathology, PathLinks Pathology Service, Lincoln County Hospital, Lincoln, United Kingdom. anuradha.sheth@ulh.nhs.uk

Indian Journal of Pathology & Microbiology
|January 12, 2012
PubMed
Summary

This case report details the first known instance of a hibernoma, a benign tumor of brown fat, occurring in the vulva. The patient

Area of Science:

  • Gynecologic Oncology
  • Surgical Pathology
  • Dermatopathology

Background:

  • Hibernomas are rare, benign tumors originating from brown adipose tissue.
  • Vulvar masses can present with diverse etiologies, requiring accurate histopathological diagnosis.
  • Subcutaneous lesions of the vulva necessitate thorough clinical and pathological evaluation.

Observation:

  • A 35-year-old woman presented with a 7 cm, painless, soft, well-circumscribed subcutaneous vulvar lump.
  • The lesion had been present for 18 months prior to presentation.
  • Clinical presentation mimicked other benign or malignant vulvar neoplasms.

Findings:

  • Microscopic examination confirmed the diagnosis of hibernoma.
  • The excised lesion was entirely consistent with hibernoma histopathology.

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  • This represents the first documented case of a vulvar hibernoma in English literature.

    • Implications:

    • Highlights the importance of considering rare soft tissue tumors in vulvar differential diagnoses.
    • Emphasizes the role of surgical excision and histopathological analysis for definitive diagnosis.
    • Adds to the limited literature on hibernomas, particularly in unusual locations.