Differential predictors of functional competence and performance were found from discrete NP domains. Separating competence and performance provides a more precise perspective on correlates of disability. Changes in specific NP or functional skills might improve specific outcomes, rather than promoting global functional improvement.

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SniaryThe clinical features and response to therapy of 32 Chinese patients with localised plasmacytoma are presented, and a companson between extramedullary plasmacytoma (EMP) and solitary plasmacytoma of bone (SPB) is made. Twenty-two patients had SPB and ten had EMP, accounting for 9% of all of our plasma cell neoplasms. Both groups had a male predominance with a median age of 54 years for SPB and 63 years for EMP. The common sites of SPB included vertebral bodies (15) and the skull (4). Most EMPs occurred in the oronasopharynx (6) and paranasal sinuses (2). An M-protein was detected in eight patients with SPB and in six with EMP. Seventeen patients with SPB and seven with EMP received radiation therapy, and all achieved initial local control. cies were evaluated at the division of Hematology-Oncology, Chang Gung Memorial Hospital, Taiwan. Of these patients, 32 had solitary plasmacytomas which were defined as (1) having a radiologically solitary lytic bone lesion or soft-tissue mass which was histologically proven to be a plasmacytoma, (2) less than 5% plasma cells in the bone marrow at diagnosis and (3) no anaemia, hypercalcaemia or impairment of renal function. Patients with M-protein in the serum or urine at presentation were not excluded from the study if they met the above criteria.