title: Large aneurysmal bone cyst of iliac bone in a female child: a case report.
abstract: BACKGROUND
  Symptomatic aneurysmal bone cysts in pediatric age group with an expansile lesion in ilium is a rare occurrence.
  
  
  METHODS
  An 11-year-old female presented with a swelling over her right iliac region and numbness along the medial aspect of thigh. Clinicoradiological diagnosis was aneurysmal bone cyst confirmed on fine needle aspiration cytology. Excision curettage (wide margin excision of the soft tissue tumor and intralesional curettage in the region of acetabulum) of the tumor was performed in view of proximity to acetabular roof and endangered hip stability.
  
  
  RESULTS
  At follow up of 18 months, the child has full painless range of movements in the hip joint with no recurrence.
  
  
  CONCLUSIONS
  Pelvic aneurysmal bone cysts are distinctly rare in pediatric age. The lesion was associated with an atypical symptom of numbness along the femoral nerve distribution. Hip stability and range of movements were major concern in this patient. Although many treatment options are described, surgical excision still remains the mainstay. In our case, we performed excision curettage, with good outcome.
authors.affiliation: Department of Orthopedics, Chacha Nehru Bal Chikitsalaya, Geeta colony, Delhi, India. rachna_anila@yahoo.co.in
authors.forename: Anil
authors.initials: A
authors.lastname: Agarwal
authors.forename: Praveen
authors.initials: P
authors.lastname: Goel
authors.forename: Shariq A
authors.initials: SA
authors.lastname: Khan
authors.forename: Pawan
authors.initials: P
authors.lastname: Kumar
authors.forename: Nadeem A
authors.initials: NA
authors.lastname: Qureshi