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Case Reports
. 2019 Mar;7(2):199-202.

Fetal Rhabdomyoma of the upper Extremity in a 31-Year Old Patient: a Case Report

Georg Hauer  1   2   3   1   4 , Jörg Friesenbichler  1   2   3   1   4 , Franz Gollowitsch  1   2   3   1   4 , Andreas Leithner  1   2   3   1   4 , Lukas A Holzer  1   2   3   1   4
Affiliations
Case Reports

Fetal Rhabdomyoma of the upper Extremity in a 31-Year Old Patient: a Case Report

Georg Hauer et al. Arch Bone Jt Surg. 2019 Mar.

Abstract

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 resection is 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 report the 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 its malignant counterpart rhabdomyosarcoma.

Keywords: Fetal; Rhabdomyoma; Rhabdomyosarcoma; Tumour.

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Figures

Figure 1A-B
Figure 1A-B
The MRI scan of the left distal upper arm presents a 3.0 cm (proximodistal) x 1.5 cm (transversal) x 1.4 cm (sagittal) big tumour intramuscular in brachialis muscle with a strong contrast medium enhancement and close proximity to surrounding vessels in sagittal (A) and axial (B) sequence
Figure 2
Figure 2
Fetal rhabdomyoma, intermediate type, with immature skeletal muscle cells in HE stain 20x10. The tumour consists of intersecting bundles of differentiated eosinophilic myofibrils
Figure 3
Figure 3
Fetal rhabdomyoma, intermediate type, consisting of tumour cells with specific reaction on desmin in immunohistochemistry
See this image and copyright information in PMC

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