1.High Resolution Computed Tomography (HRCT) Imaging Findings of Oval Window Atresia with Surgical Correlation.
Hau Wei KHOO ; Chih Ching CHOONG ; Seng Beng YEO ; Julian Pn GOH ; Tiong Yong TAN
Annals of the Academy of Medicine, Singapore 2020;49(6):346-353
INTRODUCTION:
Isolated oval window atresia (OWA) is a rare cause of congenital conductive middle ear deafness and may be overlooked owing to the normal appearance of the external ear. This anomaly has been previously described, although the published numbers with both imaging and surgical findings are few. Our aim is to correlate the imaging features of OWA with intraoperative findings.
MATERIALS AND METHODS:
This is a single-centre retrospective evaluation of patients who were diagnosed with OWA and who received surgery from January 1999 to July 2006. No new case was diagnosed after 2006 to the time of preparation of this manuscript. High resolution computed tomography (HRCT) imaging of the temporal bones of the patients were retrospectively evaluated by 2 head and neck radiologists. Images were evaluated for the absence of the oval window, ossicular chain abnormalities, position of the facial nerve canal, and other malformations. Imaging findings were then correlated with surgical findings.
RESULTS:
A total of 9 ears in 7 patients (two of whom with bilateral lesions) had surgery for OWA. All patients had concomitant findings of absent stapes footplate with normal, deformed or absent stapes superstructure and an inferiorly displaced facial nerve canal. HRCT was sensitive in identifying OWA and associated ossicular chain and facial nerve abnormalities, which were documented surgically.
CONCLUSION
OWA is a rare entity that can be diagnosed with certainty on HRCT, best visualised on coronal plane. Imaging findings of associated middle ear abnormalities, position of the facial nerve canal, which is invariably mal-positioned, and associated deformity of the incus are important for presurgical planning and consent.
2.Neutrophilic Dermatoses as a Continuous Spectrum: An Illustrative Case.
Pei Ming YEO ; Ki Wei TAN ; Regina Sp LIM ; Sim Chee SENG ; Jeannie Pl ONG ; Ratna RAJARATNAM
Annals of the Academy of Medicine, Singapore 2016;45(12):569-571
Facial Dermatoses
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diagnosis
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pathology
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Humans
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Male
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Pyoderma Gangrenosum
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diagnosis
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pathology
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Sweet Syndrome
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diagnosis
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pathology
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Young Adult
3.Relationship between Food Habits and Tooth Erosion Occurrence in Malaysian University Students
Zahara Abdul Manaf ; Mei Tee Lee ; Nor Hazirah Muhammad Ali ; Selvamary Sam ynathan ; Ying Phor Jie ; Noor Hasnani Ismail ; Bibiana Hui Ying Yong ; Wei Seng Yeo ; Nurul Asyikin Yahya
Malaysian Journal of Medical Sciences 2012;19(2):56-66
Background: Tooth erosion is a growing dental problem; however, the role of diet in the aetiology of tooth erosion is unclear. A cross-sectional study was conducted to determine the association between tooth erosion occurrence and the consumption of acidic foods and drinks among undergraduate university students.
Methods: A total of 150 undergraduate students (33 males and 117 females) aged 19 to 24 years at Universiti Kebangsaan Malaysia participated in this study. The Basic Erosive Wear Examination was used to assess the occurrence of tooth erosion. Information regarding dental hygiene practices, usual dietary habits, and consumption of acidic foods and drinks was obtained through a structured questionnaire.
Results: In all, 68% of subjects had tooth erosion. Subjects who reported having received information about healthy eating were less likely to have tooth erosion (χ2 [1, N = 150] = 7.328, P = 0.007). The frequencies of milk (OR = 0.29, 95% CI = 0.13–0.67) and tea/coffee (adjusted OR = 0.42, 95% CI = 0.19–0.95) consumption were negatively associated with tooth erosion. Dental hygiene practice, the frequency and amount of acidic food and drink intake, and body mass index classification were not significantly associated with the risk of tooth erosion (P > 0.05).
Conclusion: A high prevalence of tooth erosion was observed among this group of students. Preventive measures, such as dietary advice and increased consumption of milk at a younger age, may reduce the occurrence of tooth erosion among this age group.