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Fulltext Occipital Falcine Anaplastic Hemangiopericytoma Mimicking Meningioma

Kanesen D, Kandasamy R, Idris Z

J Neurosci Rural Pract, 2016 Dec;7(Suppl 1):S95-S98.
PMID: 28163517 DOI: 10.4103/0976-3147.196463

The rarity of hemangiopericytoma (HPC) and its controversial histological classification result in its frequent misdiagnosis and thus make the treatment quite challenging. It is often difficult to distinguish these tumors from meningiomas based on clinical features and radiological findings. This is a case report of a man, diagnosed clinically and radiologically as meningioma, which turned out to be anaplastic HPC on histological examination. A 30-year-old man presented with 3 months of progressively worsening of headache and blurring of vision. Clinical examination revealed the right homonymous hemianopia with reduced visual acuity and papilledema bilaterally. Magnetic resonance imaging revealed a multilobulated and heterogenous extraaxial lesion attached to the occipital falx. It measured 9.0 cm (AP) × 5.5 cm (W) × 5.8 cm (CC) and expands bilaterally with major bulk on the left. An occipital craniotomy followed by a subtotal tumor excision was only achieved due to profuse bleeding intraoperatively. Histopathology confirmed an anaplastic HPC (WHO Grade 3). The importance of differentiation between HPCs and meningiomas cannot be overemphasized. A preoperative correct diagnosis is difficult, but it is important that it should be made. Multilobulated (mushroom appearance), prominent internal signal voids, relatively narrow dural attachment, and lytic destruction without calcifications are useful findings to distinguish HPCs from meningiomas.
Fulltext Giant Occipital Encephalocele with Chiari Malformation Type 3

Kanesen D, Rosman AK, Kandasamy R

J Neurosci Rural Pract, 2018 10 3;9(4):619-621.
PMID: 30271061 DOI: 10.4103/jnrp.jnrp_103_18

Encephaloceles are rare embryological mesenchymal developmental anomalies resulting from inappropriate ossification in the skull through which herniate the intracranial contents of the sac. Occipital encephaloceles are described as giant when they are larger than the head from which they arise, and they pose a great surgical challenge. Herein, we present a case of a giant occipital encephalocele in a neonate with Chiari malformation Type 3 to highlight the problems encountered in its management and the outcome of the surgery.
Fulltext Initial leucocytosis and other significant indicators of poor outcome in severe traumatic brain injury: an observational study

Vijian K, Teo EG, Kanesen D, Wong ASH

Chinese neurosurgical journal, 2020;6:5.
PMID: 32922934 DOI: 10.1186/s41016-020-0185-4

Background: Globally, severe traumatic brain injury (TBI) has been the principal cause of mortality among individuals aged 45 and below. The incidence of road traffic accidents in Malaysia is one of the highest in the world with thousands of victims sustaining severe disabilities. The aim of this study is to determine the association between leucocytosis and extended Glasgow Outcome Scale (GOSE) scores as well the relationship of other factors and the outcomes of severe TBI.
Methods: This was a retrospective observational study. A total of 44 consecutive patients who were admitted to Sarawak General Hospital from January 1, 2018, to September 30, 2018, with severe TBI were included. Data were collected from discharge summaries and hospital medical records. Chi-square and t test were used. SPSS was employed.
Results: Of a total of 44 patients with severe TBI, 18 patients (41%) died during the same admission. The mean age of patients was 37.1 years with 93.2% of affected patients being male. 56.9% of patients presented with a Glasgow Coma Scale (GCS) of 6 and less. A large percentage (86.3%) were discharged with a GOSE of less than 7. Older age and low admission GCS (6 and less) were significantly associated with poor GOSE scores on discharge and after 6 months (p < 0.05) on multivariate analysis. Leucocytosis on admission was also associated with poor outcomes where patients with higher total white counts on presentation attaining lower GOSE scores (p < 0.05).
Conclusion: We concluded that leucocytosis was significantly associated with poor outcomes in severe TBI patients in addition to other factors such as advanced age and poor GCS on arrival.
Dermatofibrosarcoma protuberans of the scalp: therapeutic challenges

Kanesen D, Zakaria Z, Ch'ng ES, Nandrajog P, Kandasamy R

ANZ J Surg, 2019 03;89(3):261-264.
PMID: 28513108 DOI: 10.1111/ans.14040
Fulltext A caroticocavernous fistula without vascular injury following endoscopic transsphenoidal excision of a tuberculum sellae meningioma-A case report

Ngui JZ, Higginbotham G, Kanesen D, Lau JH, Tang IP, Liew DNS

Clin Case Rep, 2021 May;9(5):e04117.
PMID: 34026157 DOI: 10.1002/ccr3.4117

Caroticocavernous fistulae can occur following transsphenoidal surgery even without evidence of carotid artery injury. A role of vascularized flap reconstruction may be contributory.
Clinical Outcome of Tuberculous Meningitis with Hydrocephalus - A Retrospective Study

Kanesen D, Kandasamy R, Wong ASH, Tharakan J, Lim CJ, Abdullah JM

Malays J Med Sci, 2021 Oct;28(5):82-93.
PMID: 35115890 DOI: 10.21315/mjms2021.28.5.8

Background: To study the clinical outcome of tuberculous meningitis with hydrocephalus (TBMH) and the factors contributing to its poor clinical outcome.
Methods: Clinical data of 143 adult patients diagnosed with TBM over a 6-year period in two tertiary hospitals in Malaysia were retrospectively reviewed. Relevant clinical and radiological data were studied. Patients with TBMH were further analysed based on their clinical grade and rendered treatment to identify associated factors and outcome of this subgroup of patients. The functional outcome of patients was assessed at 12 months from treatment.
Results: The mean age of patients was 35.6 (12.4) years old, with a male gender predominance of 67.1%. Forty-four percent had TBMH, of which 42.9% had surgical intervention. In the good modified Vellore grade, 76.5% was managed medically with concurrent anti-tuberculosis treatment (ATT), steroids and osmotic agents. Four patients had surgery early in the disease as they did not respond to medical therapy and reported a good outcome subsequently. Poor outcome (65.2%) was seen in the poor modified Vellore grade despite medical and surgical intervention. Multivariate model multiple Cox regression showed significant results for seizure (adjusted hazard ratio [aHR]: 15.05; 95% CI: 3.73, 60.78), Glasgow coma scale (GCS) (aHR: 0.79; 95% CI: 0.70, 0.89) and cerebrospinal fluid (CSF) cell count (aHR: 1.11; 95% CI: 1.05, 1.17).
Conclusion: Hydrocephalus was seen in 44% of patients in this study. GCS score, seizure and high CSF cell count were factors associated with a poor prognosis in TBM. Patients with TBMH treated medically (TBMHM) had better survival function compared to TBMH patients undergoing surgical intervention (TBMHS) (P-value < 0.001). This retrospective study emphasises that TBMH is still a serious illness as 47.6% of the patients had poor outcome despite adequate treatment.