Intramuscular myxoma of the deltoid muscle is a very rare benign tumor that should be considered in the differential diagnosis of shoulder masses.
May warrant consideration in shoulder mass differentials; extends sparse case literature on deltoid intramuscular myxoma.
INTRODUCTION: Intramuscular myxoma is a rare benign mesenchymal tumor. Myxomas most commonly occur in the heart. They may occur less frequently in aponeurotic tissues, bone, genitourinary tract, subcutaneous tissue and skin. CASE PRESENTATION: The case described here is a 44-year-old Turkish woman who presented with the complaint of a swelling in her right shoulder. A preoperative magnetic resonance imaging revealed a lobular contoured mass lesion in her deltoid muscle. The mass was marginally excised and pathology revealed intramuscular myxoma. CONCLUSION: Intramuscular myxoma of the deltoid muscle is a very rare benign tumor. In the differential diagnosis, reactive lesions, myxoid nodular fasciitis and low -grade myxoid sarcomas should be kept in mind, upon which the treatment should be planned.
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Kemah et al. (2014) studied this question.
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