Radhika Sridharan
National University of Malaysia
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Publication
Featured researches published by Radhika Sridharan.
Korean Journal of Urology | 2015
Xeng Inn Fam; Praveen Singam; Christopher Chee Kong Ho; Radhika Sridharan; Rozita Hod; Badrulhisham Bahadzor; Eng Hong Goh; Guan Hee Tan; Zulkifli Md Zainuddin
Purpose Urinary calculi is a familiar disease. A well-known complication of endourological treatment for impacted ureteral stones is the formation of ureteral strictures, which has been reported to occur in 14.2% to 24% of cases. Materials and Methods This was a prospective study. Ureterotripsy treatment was used on patients with impacted ureteral stones. Then, after 3 months and 6 months, the condition of these patients was assessed by means of a kidney-ureter-bladder (KUB) ultrasound. If the KUB ultrasound indicated moderate to serious hydronephrosis, the patient was further assessed by means of a computed tomography intravenous urogram or retrograde pyelogram to confirm the occurrence of ureteral strictures. Results Of the 77 patients who participated in the study, 5 developed ureteral strictures. Thus, the stricture rate was 7.8%. An analysis of the intraoperative risk factors including perforation of the ureter, damage to the mucous membrane, and residual stone impacted within the ureter mucosa revealed that none of these factors contributed significantly to the formation of the ureteric strictures. The stone-related risk factors that were taken into consideration were stone size, stone impaction site, and duration of impaction. These stone factors also did not contribute significantly to the formation of the ureteral strictures. Conclusions This prospective study failed to identify any predictable factors for ureteral stricture formation. It is proposed that all patients undergo a simple postoperative KUB ultrasound screening 3 months after undergoing endoscopic treatment for impacted ureteral stones.
Case Reports | 2014
Soo Fin Low; Chai Soon Ngiu; Radhika Sridharan; Yee Ling Lee
Midgut malrotation commonly presents in the neonatal period, and rarely manifests its symptoms in adulthood with an estimated incidence of 0.2–0.5%. Nevertheless, the symptoms are non-specific with no strong pointers towards the clinical diagnosis. Consequently, the diagnosis is usually disclosed with imaging or surgery. We report a case of small bowel obstruction secondary to a congenital peritoneal band with underlying midgut malrotation in a 48-year-old man.
Case Reports | 2013
Mohammad Hanafiah; Soo Fin Low; Radhika Sridharan; Benny Young
Neurocytoma of the spinal cord is extremely rare. We present the images of a spinal neurocytoma in a 34-year-old man who was presented with a 3-week history of worsening back pain associated with bilateral lower limb weakness. At presentation, the muscle power of both of the lower limbs was 3/5. The deep tendon reflexes of the lower limb were brisk and the sensation of the right lower limb at L1 dermatome was reduced. The routine blood investigations were unremarkable. MRI of the whole spine demonstrated a heterogeneously and avidly enhancing intramedullary mass extending from C6 to T4 level (figure 1) associated with an extensive syringohydromyelia involving the entire length of …
PLOS ONE | 2016
Endom Ismail; Omimah Khaled Jaber Nofal; Rajalingham Sakthiswary; Syahrul Sazliyana Shaharir; Radhika Sridharan
Objective Interleukin-1 receptor antagonist (IL-1Ra) acts as an inhibitor of IL-1; which is one of the culprit cytokines in rheumatoid arthritis (RA). Although +2018 polymorphism of IL-1Ra has been implicated in the pathogenesis of RA, its importance remains poorly understood. Hence, the purpose of this study was to determine the clinical significance of interleukin-1 receptor antagonist (IL-1Ra) +2018 polymorphism in RA. Methods Polymerase chain reaction (PCR) and sequencing were used to determine the genotypes of the IL-1Ra +2018 for 77 RA patients and 18 healthy controls. All RA patients were assessed for the disease activity score that includes 28 joints (DAS28) and radiographic disease damage based on Modified Sharp Score (MSS). Results The frequency of the T/T and C/T genotypes did not differ significantly (p = 0.893) between the RA patients and the controls. The C/T genotype had significantly higher mean disease activity (DAS 28) and disease damage (MSS) scores with p values of 0.017 and 0.004, respectively. Additionally, the ESR (erythrocyte sedimentation rate), CRP (C-reactive protein), the number of swollen and tender joints were higher for the C/T individuals. On multivariate analysis the CRP, swollen joint count and MSS remained significant with the following p values i.e. 0.045, 0.046 and less than 0.05. Conclusions C/T genotype of IL-1Ra +2018 prognosticates more aggressive disease in RA.
Iranian Journal of Radiology | 2015
Soo Fin Low; Nor Hanani Mohd Tap; Thean Yean Kew; Chai Soon Ngiu; Radhika Sridharan
Multiple myeloma (MM) is characterized by progressive proliferation of malignant plasma cells, usually initiating in the bone marrow. MM can affect any organ; a total of 7 - 18% of patients with MM demonstrate extramedullary involvement at diagnosis. Non-secretory multiple myeloma (NSMM) is a rare variant that accounts for 1 - 5% of all cases of multiple myeloma. The disease is characterized by the absence of monoclonal gammopathy in serum and urine electrophoresis. Our case report highlights the diagnostic challenge of a case of NSMM with extensive extramedullary involvement in a young female patient who initially presented with right shoulder pain and bilateral breasts lumps. Skeletal survey showed multiple lytic bony lesions. The initial diagnosis was primary breast carcinoma with osseous metastases. No monoclonal gammopathy was found in the serum or urine electrophoresis. Bone marrow and breast biopsies revealed marked plasmacytosis. The diagnosis was delayed for a month in view of the lack of clinical suspicion of multiple myeloma in a young patient and scant biochemical expression of non-secretory type of multiple myeloma.
Case Reports | 2014
Soo Fin Low; Radhika Sridharan; Chai Soon Ngiu; Nor Hazla Mohamed Haflah
Pseudotumours are rare, occurring in 1–2% of severe haemophiliacs. Osseous locations are far less frequent than soft tissue location. We report a case of a 43-year-old man with haemophilia A, who presented with a gradually enlarging left thigh mass for 8 months. There were no constitutional symptoms. Plain radiograph showed an expansile lytic lesion with ‘soap-bubble’ appearance arising from the left femur diaphysis. On MRI, it appeared as a non-enhancing, multilobulated lesion expanding the medullary and subperiosteal spaces. The mass exhibited concentric ring sign with heterogeneous intermediate signal intensity in the core lesion, reflective of chronic haematoma with blood degradation products of different stages. A diagnosis of haemophilic pseudotumour was made. Hypercalcaemia, however, raised a diagnostic dilemma as bone malignancy needed to be considered. An open excisional biopsy and subsequent amputation confirmed the diagnosis of osseous haemophilic pseudotumour. Nuclear medicine study later revealed a concurrent parathyroid adenoma.
Case Reports | 2015
Radhika Sridharan; Chai Soon Ngiu; Syahrul Sazliyana Shaharir; Mohd Shahrir Mohamed Said
Spondyloarthropathy (SpA) is a group of inflammatory conditions that include spondylitis, sacroiliitis, asymmetrical peripheral arthritis and enthesitis. This condition is known as juvenile SpA when the diagnosis is made in patients up to 16 years of age. Enthesitis is a highly specific feature that occurs more often in juvenile SpA than in the adult form. In contrast to adult onset SpA, the initial manifestation of juvenile SpA rarely presents as inflammatory back pain. Peripheral arthritis is the more common presenting feature. We report a case of a 12-year-old boy who presented with a 1-year history of progressive low back pain, gluteal pain and thigh pain. There were no clinical symptoms of arthropathy of the distal extremities. MRI of the whole spine was performed twice, which, unfortunately, was unyielding. Finally, MRI of the sacroiliac joints revealed asymmetric sacroiliitis as well as enthesitis of the hips and pelvis. Further laboratory data showed negative rheumatoid factor and positive human leucocyte antigen (HLA) B27. A diagnosis of juvenile SpA with sacroiliitis and enthesitis was made. The imaging characteristics of juvenile SpA are highlighted.
Case Reports | 2015
Soo Fin Low; Radhika Sridharan; Chai Soon Ngiu
An epidermal cyst is the most common type of cyst to occur in subcutaneous tissue. When its size is greater than 5 cm, it is recognised as a giant epidermal cyst. A subcutaneous giant epidermal cyst with intramuscular extension is extremely rare. The authors report a case of a 74-year-old man who presented with a painless, slow-growing left gluteal mass of 6-month duration. Examination revealed a large left gluteal mass that was fixed to the underlying structures. A small epidermal cyst with visible punctum was noted at the medial aspect of the mass. MRI demonstrated a large, lobulated left gluteal lesion measuring 20 cm×16 cm×10 cm. The lesion was partly within the gluteal maximus muscle and partly within the subcutaneous tissue. MRI and ultrasound features of the lesion were consistent with a giant epidermal cyst with intramuscular extension. The lesion was excised and histology confirmed the diagnosis.
Archive | 1975
S. Raghavan; R. Balwant Singh; Radhika Sridharan
Skeletal Radiology | 2017
Radhika Sridharan; Mitchell P. Engle; Naveen Garg; Wei Wei; Behrang Amini