title: A 5-year-old girl with a congenital ganglioneuroma diagnosed by fine needle aspiration biopsy: a case report.
abstract: BACKGROUND
  Ganglioneuroma is a rare, benign, neuroblastic tumor arising mainly from the central or peripheral autonomic nervous system, especially the sympathetic system. The most affected anatomical sites are the posterior mediastinum, retroperitoneum, adrenal gland and head and neck soft tissue. In the current literature, reports of ganglioneuroma diagnosed by fine-needle aspiration and its cytological appearance are scarce.
  
  
  METHODS
  A 5-year-old girl presented with a mass in the cervical region since birth. Laboratory routine tests were within normal limits, ultrasonography demonstrated a solid and well-circumscribed lesion in the soft tissues of the cervical region. Fine needle aspiration biopsy was carried out, and the obtained smears showed a mixture of mature ganglion cells and groups of spindle cells suggestive of schwann cell origin. A diagnosis of ganglioneuroma was suggested. Core biopsy and surgical resection confirmed this diagnosis.
  
  
  CONCLUSIONS
  Congenital ganglioneuroma of the cervical region is an uncommon soft tissue benign neoplasm of neuroblastic origin, and it should be considered in the differential diagnosis of head and neck pediatric soft tissue tumors. Fine needle aspiration biopsy technique is a reliable method that can be used with confidence when dealing with pediatric soft tissue tumors.
authors: Department of Pathology Hospital Universitario Dr, Jose Eleuterio Gonzalez Universidad Autonoma de Nuevo Leon, Monterrey, Mexico. drmarcponce@hotmail.com
authors: Marco A
authors: MA
authors: Ponce-Camacho
authors: Ricardo
authors: R
authors: Diaz de Leon-Medina
authors: Ivett
authors: I
authors: Miranda-Maldonado
authors: Raquel
authors: R
authors: Garza-Guajardo
authors: Jorge
authors: J
authors: Hernandez-Salazar
authors: Oralia
authors: O
authors: Barboza-Quintana