A rare case of esophageal melanocytosis – a case report

Esophageal melanocytosis is a rare but benign clinicopathologic entity, often presenting incidentally, with reported incidence in 0.07% to 2.1% of gastrointestinal endoscopies. It characterised by non-atypical melanocytic proliferation and increased melanin deposition the esophageal mucosa. We report 71-year-old female who underwent oesophagogastroduodenoscopy for progressive 1-year history dysphagia reflux symptoms. Endoscopically, blackish hyperpigmented spots were noted along lower oesophagus. No nevi or melanoma found. Histopathology lesion showed squamous epithelium featuring an increase pigment basal parabasal melanocytes, compatible diagnosis melanocytosis. discuss clinical histopathologic features, differential diagnoses associations this entity. References 1. Chang F, Deere H. melanocytosis: morphologic features review literature. Arch Pathol Lab Med 2006; 130: 552–557. 2. Dubail A, Dano H, de Suray N, et al. two cases misunderstood Acta Gastroenterol Belg 2022; 85: 390–392. 3. Chattree Howat Green AT, A cause oesophageal pigmentation. BMJ Case Rep 2010; 2010: bcr0320102816.