title: Unusual metastasis of left colon cancer: considerations on two cases.
abstract: Usually, left colon cancer metastasis concerns liver, abdominal lymph nodes and lungs. Other localizations are quite rare occurrences. In spite of this, some uncommon metastasis sites are reported in literature, such as: peritoneum, ovaries, uterus, kidney testis, bones, thyroid, oral cavity and central nervous system. We report two cases of unusual localizations of left colon cancer metastasis localization, one into the retroperitoneal space and the other at the left axillary lynphnodes and between liver and pancreas. In the first reported case the diffusion pathway may have been the lymphatic mesocolic vessels, partially left in place from the previous surgery. In the second case the alleged metastatic lane may have been through the periumbilical lymph nodes to the parasternal lymph nodes and then to the internal mammary ones, finally reaching the axillary limph nodes.
authors.affiliation: Department of General Surgery, 10th Surgical Unit, Second University of Naples, Naples, Italy. adelmo.gubitosi@unina2.it
authors.forename: Adelmo
authors.initials: A
authors.lastname: Gubitosi
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Moccia
authors.forename: Francesca Antonella
authors.initials: FA
authors.lastname: Malinconico
authors.forename: Francesco
authors.initials: F
authors.lastname: Gilio
authors.forename: Giovanni
authors.initials: G
authors.lastname: Iside
authors.forename: Umberto G A
authors.initials: UG
authors.lastname: Califano
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Foroni
authors.forename: Roberto
authors.initials: R
authors.lastname: Ruggiero
authors.forename: Giovanni
authors.initials: G
authors.lastname: Docimo
authors.forename: Domenico
authors.initials: D
authors.lastname: Parmeggiani
authors.forename: Massimo
authors.initials: M
authors.lastname: Agresti
mesh_terms: D001365:Axilla; D003110:Colonic Neoplasms / Q000473:pathology*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000556:secondary*