Primary Peritoneal Carcinoma Initially Presenting as Atypical Cervical Lymphadenopathy.

Primary peritoneal carcinoma (PPC) is a rare cancer arising from the extraovarian peritoneum and is of müllerian origin. PPC and epithelial ovarian carcinoma share similar clinical, histopathological, and immunohistochemical features. Clinical symptoms and findings include abdominal distension and ascites. We experienced 2 cases of PPC which initially presented with cervical lymphadenopathy. Here, we report the 2 cases and review the literature.