1.Haemodialysis associated amyloidosis of the tongue: a case report6
Hans Prakash Sathasivama ; Lau Shin Hin
Archives of Orofacial Sciences 2013;8(2):65-68
Haemodialysis associated amyloidosis (HAA) is a complication of long-term haemodialysis caused by deposition of β2- microglobulin in tissues that most often presents clinically at osteoarticular sites. However, in very rare circumstances, patients do present initially with oral manifestations of HAA. In a normally functioning kidney, β2- microglobulin is cleared by glomerular filtration and is catabolized in the proximal tubules. This article describes a patient with oral manifestation of haemodialysis associated amyloidosis with an unusual presenting complaint of lingual dysaesthesia.
2.Gingival myofibroma in children: report of 4 cases with immunohistochemical findings.
Abdul Jalil Ajura ; Shin Hin Lau
The Malaysian journal of pathology 2007;29(1):53-6
Oral myofibroma is a rare tumour which usually occurs in children and has been reported in the mandible, tongue, buccal mucosa with only a few cases reported from the gingiva. It appears alarming clinically due to its fast growth which may mimic a malignancy. However, it is completely benign and is usually treated by complete surgical excision with excellent prognosis. Clinically, myofibroma presents as a single swelling when it occurs on the gingiva, and more common lesions such as fibrous epulis, pyogenic granuloma and peripheral odontogenic fibroma, myofibroma are usually considered in the differential diagnosis. We present 4 additional cases of gingival myofibroma in children. Their ages ranged from 7 to 14 years. Three were girls and 1 patient was a boy. All presented with solitary gingival growths, ranging from 3 weeks to 2 months in duration, and raised the clinical diagnoses of peripheral giant cell granuloma, pyogenic granuloma and fibrous epulis. Histopathology of incisional biopsies revealed proliferation of streaming and whorled fascicles of spindle cells around slit-like vascular spaces. The spindle cells were cytologically bland and were immunopositive for vimentin and smooth muscle actin, but were negative for desmin and S-100 protein. All were treated by surgical excision.
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3.An observational study of trigeminal neuralgia patients taking carbamazepine during the fasting month of Ramadan
Ajura Abdul Jalil ; Shin-Hin Lau ; Nur Suffia Sulaiman
The Medical Journal of Malaysia 2016;71(6):305-307
Introduction: Trigeminal neuralgia is an agonising orofacial
pain affecting unilaterally the distribution of the trigeminal
nerve and it usually occurs in the middle and older age
groups. Carbamazepine which is an anti-neuralgic as well as
an anti-convulsant medication is the first line drug for
treatment of trigeminal neuralgia. It is commonly taken as
one tablet (200 mg) three times a day.
Materials and Methods: This is an observational study
carried out from April to September 2014 to determine how
Muslim patients on carbamazepine treatment for trigeminal
neuralgia cope with their neuralgic pain. The pattern of how
the medication was taken during the fasting month of
Ramadan was also observed.
Results: A total of 29 patients participated in this study and
27(93%) observed the fast. Ten of them adjusted the
carbamazepine dose from three times pre-Ramadan to twice
daily during the fasting month. Three patients continued
fasting despite feeling the pain during the daytime while five
patients had their pain under control with the newly adjusted
dose.
Conclusion: Medical professionals should advise trigeminal
neuralgia patients on how to take and adjust their
carbamazepine dose during the fasting month.
4.Congenital epulis: immunohistochemical findings of 12 cases
Ajura Abdul Jalil ; Lukman Md Auzair ; Lau Shin Hin
Archives of Orofacial Sciences 2015;10(1):34-40
Congenital epulis is a fairly rare soft tissue tumour occurring exclusively on the alveolar ridge of
newborns. The exact origin of congenital epulis is still debatable. The objective of the study is to determine the
clinicopathological features and immunohistochemical findings of congenital epulis. A retrospective study was
carried out to determine the clinicopathological features of congenital epulis, diagnosed histologically in the main
oral histopathology laboratory in Malaysia from 1967 to 2014. Immunostaining using vimentin, muscle specific
actin, smooth muscle antigen, desmin, S100, CD34, CD68 and CD1a was carried out. Twelve cases of
congenital epulis were reviewed. All of the patients were females and the presentation age ranged from 2 to 90
days. The patients comprised of 6 Malays, 3 Chinese, 2 Indians and 1 Orang Asli. Most of the cases (n=7)
involved the maxillary ridge and presented as pedunculated well-defined lumps (n=8). Excisional biopsy was
performed in all cases. Via immunohistochemistry, vimentin expression was observed in all cases; but negative
for CD34, muscle specific actin, smooth muscle antigen, and desmin. CD1a and S100 positivity was seen in five
cases. The interstitial cells were highlighted by CD68. Although congenital epulis has been first described 130
years ago, the exact nature of its histogenesis remains a mystery.
Gingival Neoplasms