A rare case of ganglion cyst of sternoclavicular joint diagnosed and treated by fine-needle aspiration cytology

Ganglion cyst although a common swelling observed near joints of hands and feet, it is extremely rare in the sternoclavicular joint. Diagnosis is usually based on clinical examination, radiological investigations, or fine-needle aspiration cytology (FNAC). We hereby report a case of an 8-year-old girl who presented to the surgical outpatient department with a nontender, nonerythematous swelling over the right sternoclavicular joint for 3 months. Ultrasonography revealed a cystic swelling measuring 0.4 cm × 0.3 cm × 0.3 cm. The diagnosis of ganglion cyst was finally confirmed on FNAC. The aspiration acted both as diagnostic and therapeutic modality thus avoiding surgery. The patient is under follow-up for the chance of recurrence