title: Malignant mesothelioma presenting as Sister Joseph's nodule.
abstract: We report a rare case of malignant peritoneal mesothelioma in which the patient presented with umbilical tumor involvement. This case is also compared with other cases of umbilical neoplasm.
authors.affiliation: Department of Pathology, Saint Agnes Medical Center, Fresno, California 93720.
authors.forename: K T
authors.initials: KT
authors.lastname: Chen
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008654:Mesothelioma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D010534:Peritoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014472:Umbilicus / Q000473:pathology* / Q000601:surgery