Malignant Hidroacanthoma Simplex: A Case Report

악성 한선 극세포종 증례보고

  • Park, Byung-Chan (Departments of Plastic & Reconstructive Surgery, College of Medicine, Yeungnam University) ;
  • Lee, Jun-Ho (Departments of Plastic & Reconstructive Surgery, College of Medicine, Yeungnam University) ;
  • Kim, Tae-Gon (Departments of Plastic & Reconstructive Surgery, College of Medicine, Yeungnam University) ;
  • Kim, Yong-Ha (Departments of Plastic & Reconstructive Surgery, College of Medicine, Yeungnam University) ;
  • Bae, Young-Gyung (Departments of Pathology, College of Medicine, Yeungnam University)
  • 박병찬 (영남대학교 의과대학 성형외과학교실) ;
  • 이준호 (영남대학교 의과대학 성형외과학교실) ;
  • 김태곤 (영남대학교 의과대학 성형외과학교실) ;
  • 김용하 (영남대학교 의과대학 성형외과학교실) ;
  • 배영경 (영남대학교 의과대학 병리학교실)
  • Received : 2010.05.24
  • Accepted : 2010.07.19
  • Published : 2010.09.10

Abstract

Purpose: Hidroacanthoma simplex (HAS) is a rare benign neoplasm of the skin and known as intraepidermal poroma. Malignant transformation of HAS has been reported in the literature, but it is very rare. We experienced a case of malignant hidroacanthoma simplex (MHA) and performed the surgery of the neoplasm. Methods: A 73-year-old patient visited our department for evaluation and treatment of the skin lesion ($3.2{\times}3.0\;cm^2$) that occurred two years before on the right ankle area. The lesion was characterized by dark-brown, hyperkeratotic and protruding patch. The patient had no symptom, and any palpable lymph node was not found on physical examination. The result of laboratory was also nonspecific. The lesion was excised completely with a resection margin of 5 mm including subcutaneous tissue partially, followed by full-thickness skin graft for reconstruction. Results: The result of biopsy was reported as malignant hidroacanthoma simplex. Histologically, the epidermis showed discrete aggregates of tumor cells which had round, hyperchromatic nuclei and pale or clear abundant cytoplasm. Cystic spaces were found within the tumor and mitosis were seen, frequently. No recurrence was found one month after surgery. Conclusion: The case of malignant hidroacanthoma simplex was treated with full-thickness skin graft following wide excision of the tumor.

Keywords

References

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