Low prevalence of Dirofilaria immitis in dogs in Johor Bahru, Malaysia as a reflection of vector availability?

Abstract. This study was conducted to investigate the low prevalence of Dirofilaria immitis in dogs in Johor Bahru as reported by veterinary practitioners, using wet blood mount, Knott’s Concentration Test and two heartworm antigen test kits (IDEXX Canine SNAP® 4Dx and RapiGEN®). This study also compared the two test kits used and determined the microfilaria species. Blood were collected from 100 owned dogs and 50 stray dogs in Johor Bahru via cephalic venipuncture. A thick blood smear was done and examined for samples that were positive for microfilaria species identification. The overall prevalence of D. immitis in dogs in Johor Bahru was 1.33% (2/150) and the microfilaria identified was D. immitis. The prevalence of heartworm in owned and stray dogs in this study was 1% and 2% respectively. With only one false negative result from RapiGEN® test kit, comparing the sensitivity between the two test kits could not be achieved. The low prevalence of D. immitis found in this study confirmed anecdotal evidence that prevalence of dirofilariasis is indeed low in Johor Bahru. Additionally, we speculate that dirofilariasis in dogs might be considered as an indicator of vector availability.

Cystic Adenocarcinoma of prostate: a case report

Prostate cancer is not uncommon amongst the elderly men. Diagnosis is made using histopathology specimens of Transrectal Ultrasound guided biopsy of the prostate gland. However, prostate cancer presenting as a intra-prostatic cysts are rare. We report a case of elderly gentleman who presented with malignant intra-prostatic cysts.

Pelvic lipomatosis in an asymptomatic Asian man: a case report

Pelvic lipomatosis is a rare disease of unknown cause, characterised by overgrowth of benign mature fat cells commonly located in the perivesical and perirectal spaces. The disease is rare amongst Asian population and has a wide range of presenting symptoms varying from lower urinary tract symptoms to bowel symptoms. However, this disease can be easily diagnosed based on certain characteristic radiological imaging techniques. We report a case of pelvic lipomatosis in an asymptomatic Chinese gentleman, who presented with classical radiological features of pelvic lipomatosis but provided us with challenging therapeutic scenario. (JUMMEC 2010; 13(2): 111-114)

Gastrointestinal Cytomegalovirus infection in non-human immunodeficiency virus infected patients

This is a retrospective study of fourteen patients who had proven Cytomegalovirus (CMV) infection of the gastrointestinal tract with no Human Immunodeficiency virus infection. The median age was 60.5 (Range 28 to 81) years. Eight patients were below (Group 1) and six above sixty five years old (Group 2). Areas of gastro-intestinal involvement were: oesophagus (2), stomach (1), colon (10) and multiple sites (1). Seven patients from Group 1 had received immunosuppressive therapy at the time of presentation and one had diabetes mellitus. We found a high prevalence of co-morbidities such as chronic renal failure and diabetes mellitus in Group 2. At median follow up of 13.9 months, there was a mortality rate of 50%. Only four patients were treated with ganciclovir. Our study concludes that the gastrointestinal CMV diseases in young patients were associated with immunosuppression whereas the older patients had chronic renal failure or diabetes.