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World J Gastroenterol
November 2024
Department of Pathology, Louisiana State University Health, Shreveport, LA 71103, United States.
Background: Esophageal melanosis (EM) is a rare condition characterized by melanin pigmentation in the esophageal mucosa. It is not well understood and has been documented in less than 100 cases worldwide.
Case Summary: We report two cases of African American patients who complained of significant weight loss (over 20 pounds in approximately six months) and abdominal pain during their first visit.
Am J Pathol
March 2010
Department of Biomedical Engineering (ND20), Lerner Research Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA.
The metalloprotease ADAMTS9 participates in melanoblast development and is a tumor suppressor in esophageal and nasopharyngeal cancer. ADAMTS9 null mice die before gastrulation, but, ADAMTS9+/- mice were initially thought to be normal. However, when congenic with the C57Bl/6 strain, 80% of ADAMTS9+/- mice developed spontaneous corneal neovascularization.
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