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Related Experiment Videos

Epithelioid angiomyolipoma: a case report.

B Lebe1, M Koyuncuoğlu, B Tuna

  • 1Department of Pathology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey. m.erdal1@superonline.com

Tumori
|August 16, 2001
PubMed
Summary

Epithelioid angiomyolipoma is a rare kidney tumor. This case highlights its presentation and diagnostic features in a patient without tuberous sclerosis complex.

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Area of Science:

  • Oncology
  • Pathology
  • Nephrology

Background:

  • Epithelioid angiomyolipoma (EAML) is a rare mesenchymal neoplasm.
  • This entity is recently recognized and distinct from classic angiomyolipoma.
  • EAML can occur sporadically or in association with tuberous sclerosis complex.

Observation:

  • A 70-year-old female presented with massive abdominal hemorrhage and shock.
  • Imaging revealed a kidney mass.
  • No history of tuberous sclerosis complex was noted.

Findings:

  • The resected kidney tumor demonstrated features of epithelioid angiomyolipoma.
  • Histology showed pleomorphic epithelioid cells, smooth muscle, adipocytes, and hyalinized vessels.
  • Immunohistochemistry revealed strong HMB45 and CD68 positivity, supporting the diagnosis.

Implications:

  • This case expands the understanding of EAML presentation and diagnosis.
  • Epithelioid angiomyolipoma may possess malignant potential, necessitating careful follow-up.
  • Complete surgical resection is crucial for managing this rare kidney tumor.

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