Dorsal exostosis of the scapula with unique localization (а clinical case)

Abstract

Introduction
Exostosis is a benign tumor of cartilaginous origin whose etiology is not fully understood. Some authors associate its appearance with a fracture of Solter and Harris, others with previous surgical interventions in the same place. There are scientific reports that link the formation with radiation therapy, as well as genetic causes—autosomal dominant inheritance or mutations. Most often, exostosis originates from the epiphyseal areas of the long tubular bones and is located near large joints. The localization of the exostosis in the scapula is extremely rare, between 3–4.6% according to various authors. In addition, the cases of dorsal and medially located scapular exostosis, such as the patient presented in this article, are almost casuistic. According to the available literature, the case has a unique localization for our country.
Aim
The aim of this article is to focus on an extremely rare exostosis localization.
Patients and Methods
The presented patient is a 14-year-old girl with dorso-medially located exostosis of the scapula.
Results
To date, eight years after the removal of the tumor, the patient is without complaints, without recurrence, with the left upper limb in excellent functional condition.
Conclusion
Although the exostosis of the scapula, especially its dorsal location, is an almost casuistic case, it should not be excluded from the differential diagnosis.

Dorsal exostosis of the scapula with unique localization(clinical case)

Yavor Grigorov

Lozenets University Hospital - Sofia, Bulgaria Abstract Exostosis is a benign tumor of cartilaginous origin whose etiology is not fully understood. Some authors associate its appearance with a fracture of Solter and Harris, others with previous surgical interventions in the same place, there are scientific reports that link the formation with radiation therapy, as well as genetic causes - autosomal dominant inheritance or mutations. Most often, exostosis originates from the epiphyseal areas of the long tubular bones and is located near large joints. The localization of the exostosis in the scapula is extremely rare, between 3% - 4.6% according to various authors. In addition, the cases of dorsal and medially located scapular exostosis, such as the patient presented in this article, are almost casuistic. According to the available literature, the case has a unique localization for our country.

The aim To pay attention to an extremely rare localization of Exostosis.

Material and method The presented patient is a 14-year-old girl with dorso-medially located exostosis of the scapula.

Results To date, eight years after the removal of the tumor, the patient is without complaints, without recurrence, with the left upper limb in excellent functional condition.

Conclusion Although the exostosis of the scapula, especially its dorsal location, is an almost casuistic case, it should not be excluded from the differential diagnosis.

Key words  benign tumor, exostosis, shoulder girdle, scapula