ABSTRACT
Dermoid cyst (cystic teratoma) showing well differentiated derivatives of all three germs cell layers, is a benign germ cell tumour. Ovaries remain the commonest site. Paravaginal dermoid cyst is a rare occurrence. Pre-operative diagnosis is usually difficult in majority of cases. They constitute less than 4% of all extragonadal teratomas. A 28-year old, P2L2 female presented with paravaginal cyst, 10×10cms, non-tender, soft swelling, cystic in consistency occupying posterior and left part of rectovaginal septum. Trans vaginal excision of cyst under regional anaesthesia done. Cyst was ruptured while excision showing putty material with tuft of hairs. A retrospective diagnosis of mature teratoma/paravaginal dermoid cyst was made on histopathological examination. Paravaginal dermoid cyst, a benign cystic teratoma is a very rare occurrence. Transvaginal excision of dermoid cyst under anaesthesia remains treatment of choice. Retrospective diagnosis on histopathological examination remains confirmatory as it may be missed on sonography if teeth are not present in dermoid cyst.
ABSTRACT
Introduction: Palatal rugoscopy is the study of palatal rugae pattern. Rugae pattern remain unchanged during an individual's life time. Personal identification can be possible based on the rugae pattern since palate would remain intact till 7 days after death; due to their internal position in the head when most other anatomical structures are destroyed or burned. Rugae pattern is as unique to a human as his or her fingerprints. Objectives: The purpose of the study was to identify the palatal rugae patterns in Rwandan patients attending the Dental Dept at King Faisal Hospital; Kigali; Rwanda and to find sexual differences if any. Methods: 114 maxillary study models of 51 males and 63 females were randomly obtained from the Dental Clinic of King Faisal Hospital; Kigali; Rwanda; and from the Dental Clinic of Polyclinique La Medicale; Kigali; Rwanda. Different types of rugae patterns and their orientation in relation to the mid-palatal raphe were evaluated. Results: The study revealed that although there were some significant differences in the pattern and orientation of rugae in both genders and on both sides of palate; there was no significant sexual dimorphism regarding the total number of rugae. The females showed more of the wavy type of rugae; while males had curved type. Their orientation was also found to be significantly different in both the genders. Conclusion: It can be concluded that different rugae patterns and rugae orientation are present which show sexual dimorphism among the Rwanda population. But further studies are needed to corroborate these findings. Rugae pattern can be used as an additional method of identification in forensic science
Subject(s)
Palatal Expansion Technique , Palate , Practice Patterns, Dentists'ABSTRACT
Background: Dental malocclusion is present in all societies but its prevalence varies. Identifying occlusal problems; their incidence and the need for treatment can help to determine the appropriate awareness plans; preventive and interceptive treatment and manpower needed in orthodontics. There is no study of such kind to evaluate the pattern of malocclusion in Rwandese population. Aim: The aim of the study was to analyze and to provide quantitative information on the pattern of dental malocclusion among orthodontic population in Rwanda. Methods: Various parameters retrieved from patients' records of 243 selected patients with dental malocclusion who visited Dental Department of King Faisal Hospital; Rwanda; during the period of January 2009 to July 2012 were analyzed in this retrospective study. Chi-square test was used to find the gender difference at p 0.05. Results: Angle's Class I malocclusion was found to be the most common malocclusion with 60.9 followed by 28.8 Angle's class II and 10.3 Angle's class III. Increased crowding (71.2 ) was the most common problem; followed by increased overjet; deep bite and anterior open bite in that order. No significant gender differences were found except in deep bite. Conclusion: The results give a pattern of malocclusion in orthodontic patients and may provide a base line data for planning awareness programs; preventive and interceptive orthodontic services et the future studies. There is a strong need of multicentric; epidemiological survey to find out the prevalence et causes of malocclusion in Rwandese population