Castleman's disease mimicked melanoma metastasis in the mesentery - A case report.

•Castleman’s disease (CD) is a rare finding and diagnosis is very challenging.•Intraabdominal localization is uncommon and can pretend malignancy.•Misinterpretation might lead to surgical overtreatment of asymptomatic patients.•Close follow-up examination might help to distinguish between malignancy and CD.