Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Tumours
Abstract number: 25785
SIMPLE BONE CYST IN PELVIC AREA
Manuel GONZALEZ GAITANO, Nieves HERNANDEZ DE LEON, Luis COLL MESA,
Julio VEGA SANGINES, Rosa Nieves RODRIGUEZ RODRIGUEZ, Cristina
SACRAMENTO DOMINGUEZ, Maria PORRAS SANCHEZ
Hospital Universitario de Canarias, La Laguna (Tenerife ) (SPAIN)
A 15 year-old woman was referred to us presenting pain in left pelvic area of several
months´ duration with a lytic, well marginated and multiloculated lesion in iliac
wing.Radiological and anatomopathological findings showed a simple bone cyst
mimicking aneurysmal bone cyst. The treatment of choice was curettage, local
adjuvant ( Hydrogen Peroxide ) and bone grafting achieving excellent results. The
simple bone cyst is a common, benign, fluid-containing lesion and usually occurs in
infancy and teenage.This tumor is found in 3% of all biopsies of primary osseous
neoplasms and arises in the methaphyses of the long bones, beneath the growth
plate.Ninety-four percent of unicameral bone cysts occur in the proximal humerus
and proximal femur. Simple bone cysts of the pelvis are extremely rare.Per se
asymptomatic, simple bone cyst can produce pain and swelling but, more frequently,
patients present with a pathological fracture.Despite their benign nature, these cysts
require treatment to prevent recurrent fractures, prolonged restriction of activities,
and deformities or even shortening of long bones.
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