title: Thrombocytosis in a patient with upper gastrointestinal bleeding.
abstract: Reported here is a case of upper gastrointestinal bleeding secondary to a peptic ulcer involving an extremely high platelet count of 989 × 109/L. Myeloproliferative neoplasms were ruled out on the basis of gene mutation testing and a bone marrow biopsy. After the cessation of index bleeding, the platelet count decreased markedly. Thus, reactive thrombocytosis was considered as a possibility.
authors.affiliation: Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Shenyang Military Area, Shenyang, China.
authors.forename: Xingshun
authors.initials: X
authors.lastname: Qi
authors.affiliation: Institute of Hematology, Catholic University, Rome, Italy.
authors.forename: Valerio
authors.initials: V
authors.lastname: De Stefano
authors.affiliation: Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Shenyang Military Area, Shenyang, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Shao
authors.affiliation: Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Shenyang Military Area, Shenyang, China.
authors.forename: Xiaozhong
authors.initials: X
authors.lastname: Guo
keywords: Bleeding; gastrointestinal; myeloproliferative neoplasm; platelet count; thrombocytosis