Article

Occult osteoid osteoma presenting as shoulder pain: a case report.

Chiropractor, Private Practice, Summit, IL.
Journal of chiropractic medicine 09/2012; 11(3):207-14. DOI: 10.1016/j.jcm.2012.06.002
Source: PubMed

ABSTRACT The purpose of this case study is to describe the clinical course and treatment of a patient with recalcitrant shoulder pain and osteoid osteoma.
A 28-year-old man had a 2-year history of progressively worsening shoulder and midscapular pain.
Before chiropractic consultation, he had been evaluated and treated by his family physician, an orthopedic surgeon, a neurologist, and a pain management specialist. The patient underwent arthroscopy with examination under anesthesia and debridement of a posterior labral tear and cervical spine epidural injections, but neither procedure relieved his symptoms. After seeking chiropractic care, presenting symptoms were reproducible during direct clinical examination; and an initial working diagnosis of secondary right glenohumeral impingement syndrome with coexisting scapulothoracic dyskinesis was made. After 2 weeks of chiropractic rehabilitation, therapy was stopped because of no change in symptoms. The patient was referred for orthopedic consultation. Another series of plain films were ordered, and follow-up magnetic resonance imaging revealed an osseous mass at the medial aspect of the proximal metadiaphyseal region of the right humerus, with a diagnosis of osteoid osteoma. The patient underwent radiofrequency thermoablation of the tumor nidus, which was unsuccessful and resulted in open surgical resection. Resolution of symptoms with minimal pain was reported 3 weeks after the surgery. Four years later, the patient's shoulder remains asymptomatic.
This case demonstrates that osteoid osteoma may present with clinical features that mimic common functional musculoskeletal conditions of the shoulder. Information from the patient history and diagnostic imaging are important for diagnosis and appropriate management.

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