title: Ossifying renal tumor of infancy presenting as a palpable abdominal mass.
abstract: We report a case of ossifying renal tumor of infancy, which presented as a palpable abdominal mass in an otherwise asymptomatic 10-month-old girl. The tumor was partially calcified and occupied the renal pelvis, causing severe hydronephrosis. The differential diagnosis for a patient this age included Wilms tumor, extra-adrenal neuroblastoma, infection, calculus, calcified hematoma and ossifying renal tumor of infancy. The child underwent heminephrectomy and is currently doing well.
authors.affiliation: Department of Radiology, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Vazquez
authors.forename: C E
authors.initials: CE
authors.lastname: Barnewolt
authors.forename: R C
authors.initials: RC
authors.lastname: Shamberger
authors.forename: T
authors.initials: T
authors.lastname: Chung
authors.forename: A R
authors.initials: AR
authors.lastname: Perez-Atayde
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007223:Infant; D007680:Kidney Neoplasms / Q000150:complications / Q000175:diagnosis*; D009999:Ossification, Heterotopic / Q000209:etiology*