title: Colonic Metastasis with Anemia Leading to a Diagnosis of Primary Lung Adenocarcinoma.
abstract: Metastasis occurs with 50% of lung carcinomas, most commonly to lymph nodes, adrenal glands, liver, bone, and brain. It is extremely rare for lung cancer to present with symptoms of a gastrointestinal metastasis and even more so pertaining to the colon. To the best of our knowledge, only 12 such cases have been reported in the literature. We describe a case of a 71-year-old female presenting with refractory iron deficiency anemia that was found to have a lesion in the transverse colon. Pathology revealed adenocarcinoma of the lung and a subsequent lung lesion was discovered in a retrograde fashion.
authors.affiliation: Department of Oncology, Weiss Memorial Hospital, Chicago, IL 60640, USA.
authors.forename: Vasa
authors.identifier: 0000-0001-9661-3829
authors.initials: V
authors.lastname: Jevremovic
authors.affiliation: Department of Pathology, Weiss Memorial Hospital, Chicago, IL 60640, USA.
authors.forename: Amer
authors.initials: A
authors.lastname: Abboud
authors.affiliation: Department of Oncology, Weiss Memorial Hospital, Chicago, IL 60640, USA.
authors.forename: Stuart
authors.initials: S
authors.lastname: Krauss