Ewing's sarcoma of proximal phalanx of the hand with skip metastases to metacarpals.

Ewing's sarcoma is the second most common malignant primary bone tumor of childhood and adolescence affecting mainly the diaphysis of long bones and flat bones. This tumor is extraordinarily rare in small bones of the hand and presents as a swelling with atypical radiological features of cystic and lytic lesion with scant periosteal reaction. The common differential diagnosis include osteomyelitis, tuberculosis, enchondroma and benign tumors.

Synchronous Multicentric Giant Cell Tumour (GCT)-A Rare Case Report.

Giant Cell Tumours (GCT) of bone account for 5% of all primary bone tumours. Multicentric variety is a rare variant of this condition, accounting for less than 1% of all cases and can occur as synchronous or metachronous lesions. We report a 22-year-old male patient with 18 months history of painful progressive swellings around the right knee.