title: A unique case of merkel cell carcinoma with ovarian metastasis.
abstract: BACKGROUND
  Merkel cell carcinoma (MCC) is a rare cutaneous/mucosal malignancy with very aggressive biology and increasing incidence. Ovarian metastasis is an exceptionally rare site for MCC, and only two cases have been reported in the literature.
  
  
  METHODS
  We report MCC with ovarian metastasis. A 34 year-old female with previously excised MCC from preauricular skin presented with a pelvic mass 15 months after first diagnosis. Anti-cytokeratin (CK) 20 positivity, LCA (leucocyte common antigen), and TTF-1 (Thyroid transcription factor-1) negativity confirmed metastatic ovarian MCC. There was no evidence of recurrence or metastasis at 12 months after salpingooopherectomy.
  
  
  CONCLUSIONS
  MCC should be considered in the differential diagnosis of primary and metastatic undifferentiated small round cell tumors of the ovary.
authors: Department of Pathology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors: Arbil
authors: A
authors: Açıkalın
authors: Department of Medical Oncology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors: Semra
authors: S
authors: Paydaş
authors: Department of Gynecology and Obstetrics, Çukurova University Faculty of Medicine, Adana, Turkey.
authors: Ümran Küçükgöz
authors: ÜK
authors: Güleç
authors: Department of Pathology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors: Aysun
authors: A
authors: Uğuz
authors: Department of Pathology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors: Derya
authors: D
authors: Gümürdülü
keywords: Carcinoma; Merkel cell; metastasis ovarian; neoplasms