Long Term Outcome of Surgical Excision of Conjunctival Melanoma Combined with Mitomycin C Use: A Case Report

Abstract

Purpose: To report a case of conjunctival melanoma (CM) treated with excision and adjuvant mitomycin C. Methods: This is a case report of a 51-year-old female with conjunctival melanotic lesion (10.5 × 5 mm), that was treated with complete surgical excision, combined with perioperative and intraoperative use of mitomycin C 0.02%. Lymphoscintigraphy with 0.3 mCi of technetium Tc-99m sulfur colloid and sentinel lymph node biopsy were also performed. Results: Histological and immunohistochemical staining of the excised melanotic lesion [S-100 (+), Melan (+), Tyrosinase (+), HMB 45 (+)] confirmed the clinical diagnosis of Conjunctival Melanoma. Moreover, lymphoscintigraphy and sentinel lymph node biopsy were negative for tumor metastasis. Ten years postoperatively, there were neither signs of tumor recurrence or metastasis nor late postoperative complications due to mitomycin C. Conclusions: Complete surgical excision combined with perioperative and intraoperative MMC 0.02% was safe and effective in preventing local recurrence in a case of conjunctival melanoma.