title: Idiopathic calcifying pancreatitis in a Japanese pediatric patient.
abstract: We recently experienced a rare case of chronic pancreatitis in a 13-year-old Japanese boy. Recently, in hereditary pancreatitis patients, some mutations have been identified in the trypsinogen gene. The purpose of this study was to investigate whether the same mutations could also be found in this patient. Polymerase chain reaction (PCR)-amplified products of his cationic and anionic trypsinogen genes were examined by direct sequence analysis. The gene analysis failed to show any mutation in any exons and their flanking intronic sequences of his trypsinogen genes. These findings indicate that the chronic calcifying pancreatitis in the present patient is "idiopathic", and thus a rare case of juvenile pancreatitis.
authors.affiliation: Department of Surgery, Institute of Clinical Medicine, University of Tsukuba, Tennodai, Tsukuba Science City, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Seino
authors.forename: I
authors.initials: I
authors.lastname: Nishimori
authors.forename: Y
authors.initials: Y
authors.lastname: Nagai
authors.forename: H
authors.initials: H
authors.lastname: Inoue
authors.forename: Y
authors.initials: Y
authors.lastname: Takada
authors.forename: S
authors.initials: S
authors.lastname: Adachi
authors.forename: T
authors.initials: T
authors.lastname: Todoroki
authors.forename: K
authors.initials: K
authors.lastname: Fukao
mesh_terms: D000293:Adolescent; D002114:Calcinosis / Q000150:complications / Q000235:genetics; D002908:Chronic Disease; D004252:DNA Mutational Analysis; D006801:Humans; D007564:Japan; D008297:Male; D009154:Mutation; D010195:Pancreatitis / Q000150:complications / Q000235:genetics*; D014362:Trypsinogen / Q000235:genetics*
chemical_list: D014362:Trypsinogen