Publications by authors named "Kwok Man Ma"

Progressive supranuclear palsy (PSP) is the most prevalent form of degenerative atypical parkinsonism. Clinical manifestations of PSP commonly encompass deficits in vertical gaze, postural stability, akinesia, and cognitive impairment. The characteristic metabolic pattern observed in PSP through FDG PET displays hypometabolism in the midbrain, striatum, thalamus, and frontal lobe.

View Article and Find Full Text PDF

Anaplastic large cell lymphoma is an uncommon and aggressive form of peripheral T-cell lymphoma. Synovial anaplastic large cell lymphoma is very rare. We present PET/CT findings in a patient with synovial anaplastic large cell lymphoma.

View Article and Find Full Text PDF

Objectives: To compare the efficacy of denosumab and alendronate on raising spine bone mineral density (BMD) in long-term glucocorticoid (GC) users.

Methods: Adult patients receiving long-term prednisolone (≥2.5 mg/day for ≥1 year) were recruited and randomized to either subcutaneous denosumab (60 mg/6 months) or oral alendronate (70 mg/week).

View Article and Find Full Text PDF

Objectives: To evaluate the effect of switching from oral bisphosphonates to denosumab on bone mineral density (BMD) in long-term glucocorticoid users.

Methods: Adult patients who were receiving long-term prednisolone (≥2.5 mg/day for ≥1 year) and oral bisphosphonates (≥2 years) were recruited.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to examine how common low bone mineral density (BMD) is in patients with systemic sclerosis (SSc) and identify potential risk factors.
  • A total of 84 SSc patients were compared to an equal number of healthy individuals, finding that SSc patients had significantly lower BMD, fat mass, and lean body mass.
  • Key risk factors for low BMD in SSc patients included higher age, menopause status, and low BMI, while the severity of skin and other systemic involvement did not affect BMD levels.
View Article and Find Full Text PDF

Our objective was to compare patients with concurrent and sequentially presented systemic lupus erythematosus (SLE)-related protein-losing enteropathy (PLE). Patients with history of SLE admitted for PLE were selected and their clinical, laboratory, endoscopic and imaging characteristics, treatment and outcome were analyzed. From 2001 to 2010, 21 and 27 patients had concurrent and sequentially presented SLE-related PLE, respectively, and their clinical characteristics were comparable except the following: the concurrent group had more pleural effusion (P < 0.

View Article and Find Full Text PDF

Objective: The aim of our study was to compare protein-losing enteropathy (PLE) associated with or without systemic autoimmune (SA) diseases.

Methods: Patients diagnosed with PLE were selected, and their clinical characteristics, laboratory, endoscopic and imaging characteristics, treatment, and outcome were analyzed.

Results: From 2001 to 2010, 74 patients (60 patients with SA disease) with a female predominance were diagnosed with PLE.

View Article and Find Full Text PDF

Objective: To study the BMD of patients with SLE according to the age of disease onset.

Methods: Consecutive SLE patients were screened for BMD at the hip, lumbar spine and whole body by the dual-energy X-ray absorptiometry (DXA). Comparison was made between patients who had disease onset in childhood (<18 years) and adulthood (≥18 years).

View Article and Find Full Text PDF

Objectives: To study the efficacy of raloxifene in preventing bone mineral density (BMD) loss in women receiving long-term glucocorticoids (GC). The study took the form of a parallel-group randomised double-blinded placebo-controlled trial.

Methods: Postmenopausal women without hypercoagulability risk factors who were prevalent GC users were randomised to receive either raloxifene (60 mg/day) or placebo (1 tablet/day) on top of calcium (1000 mg/day) and calcitriol (0.

View Article and Find Full Text PDF

Objective: To study the bone mineral density (BMD) and body composition in men with systemic lupus erythematosus (SLE).

Methods: Consecutive male patients who fulfilled > or =4 ACR criteria for SLE and age-matched healthy men were recruited for measurement of BMD and body composition by DXA scan. Risk factors for low BMD in SLE patients were evaluated.

View Article and Find Full Text PDF

Objective: To study the effects of raloxifene on disease activity and bone mineral density (BMD) in postmenopausal women with systemic lupus erythematosus (SLE).

Methods: Postmenopausal women with osteopenia and inactive SLE were randomly assigned to receive either raloxifene (60 mg/day) plus elemental calcium (1,200 mg/day) or elemental calcium alone (control). Patients with a history of thromboembolism or antiphospholipid antibody positivity were excluded.

View Article and Find Full Text PDF

A 9-year-old girl with clinical suspicion of renovascular hypertension was referred for captopril renography. This showed a segmental abnormality when the left kidney was analyzed as two separate cortical regions of interest. Subsequent angiography confirmed stenosis in the distal mid and lower pole branches of the left renal artery.

View Article and Find Full Text PDF

Paroxysmal kinesigenic choreoathetosis is a rare neurologic disorder characterized by sudden attacks of brief involuntary dyskinetic movement that are precipitated by voluntary movement. A 14-year-old male who presented with frequent brief attacks of hemidystonia triggered by sudden movement is reported. Investigations, including video electroencephalogram and magnetic resonance imaging of brain, were normal.

View Article and Find Full Text PDF