title: [Peritoneal AA amyloidosis simulating peritoneal carcinomatosis: a case report].
abstract: Amyloidosis is a group of deposition diseases that are classified according to the type of fibers accumulated and their characteristics. It can affect any organ. The clinical presentation depends on the organs and systems involved. We present the case of a patient with a history of Hashimoto's thyroiditis and systemic symptoms who presented with abdominal pain. Physical examination detected a palpable mass in the umbilical region. CT showed thickening of the wall of the colon with infiltration of the adjacent peritoneum and extension to the root of the mesentery with abundant ascites. The histological diagnosis was peritoneal AA amyloidosis.
authors.affiliation: Unidad Central de Radiodiagnóstico de la Comunidad de Madrid, Hospital Infanta Leonor (Hospital de Vallecas), Madrid, España. araceli.munoz@salud.madrid.org
authors.forename: A
authors.initials: A
authors.lastname: Muñoz Hernández
authors.forename: R
authors.initials: R
authors.lastname: Lorente Ramos
authors.forename: J
authors.initials: J
authors.lastname: Azpeitia Armán
authors.forename: M
authors.initials: M
authors.lastname: Grande Bárez
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000000981:diagnostic imaging*; D002277:Carcinoma / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging*; D010534:Peritoneal Neoplasms / Q000000981:diagnostic imaging*; D000685:Serum Amyloid A Protein; D014057:Tomography, X-Ray Computed
chemical_list: D000685:Serum Amyloid A Protein