title: Laparoscopic fenestration of a neonatally detected hepatic mesenchymal hamartoma.
abstract: We report a case of hepatic mesenchymal hamartoma that was detected neonatally and successfully treated by laparoscopic fenestration. A baby girl was referred to our hospital 9 days after birth with a cystic lesion in her liver. Screening abdominal ultrasonography revealed a sonolucent lesion measuring 65x43x40 mm in the right lobe of the liver with a small solid area. Magnetic resonance imaging depicted the lesion as hyperintense on both T1- and T2-weighted images with no enhancement. A laparoscopic biopsy and fenestration of the lesion was performed. Histologic examination of the cyst wall led to a diagnosis of hepatic mesenchymal hamartoma. The postoperative course was uneventful and the patient is doing well at 4 years' follow-up, with no recurrence.
authors.affiliation: Department of Pediatric Surgery, Kobe Children's Hospital, Suma, Hyogo, Japan. atsushi@m.ehime-u.ac.jp
authors.forename: Atsushi
authors.initials: A
authors.lastname: Horiuchi
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Muraji
authors.forename: Chikara
authors.initials: C
authors.lastname: Tsugawa
authors.forename: Eiji
authors.initials: E
authors.lastname: Nishijima
authors.forename: Siiki
authors.initials: S
authors.lastname: Satho
authors.forename: Shigeru
authors.initials: S
authors.lastname: Takamizawa
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006222:Hamartoma / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D007231:Infant, Newborn; D010535:Laparoscopy; D008107:Liver Diseases / Q000175:diagnosis / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008648:Mesoderm / Q000473:pathology; D014463:Ultrasonography