Georg Hauer - Department of Orthopaedics and Traumatology, Medical University of Graz, Auenbruggerplatz ۵, Graz, Austria
Jörg Friesenbichler - Department of Orthopaedics and Traumatology, Medical University of Graz, Auenbruggerplatz ۵, Graz, Austria
Franz Gollowitsch - Institute of Pathology, Medical University of Graz, Auenbruggerplatz ۵, Graz, Austria
Andreas Leithner - Department of Orthopaedics and Traumatology, Medical University of Graz, Auenbruggerplatz ۵, Graz, Austria

Fetal rhabdomyomas (RM) are extremely rare benign mesenchymal tumours that occur primarily in the head and neck.This tumour exhibits immature skeletal muscle differentiation. The patients’ median age is four years and surgical resectionis the recommended treatment.Fetal RM of limbs are rare and not well described in the literature and if, predominantly in form of case reports. We reportthe second case of a fetal RM in the upper extremity in a 31-year old male patient.One should be aware of this skeletal muscle tumour and fetal RM should be considered as a differential diagnosis to itsmalignant counterpart rhabdomyosarcoma.Level of evidence: V

fetal, rhabdomyoma, rhabdomyosarcoma, tumour