Odontogenic myxomas in the Hong Kong Chinese: clinico-radiological presentation and systematic review.

Objectives: The aim was to evaluate the principal clinical and conventional radiological features of a consecutive series of cases of orthokeratinized odontogenic cyst (OOC) affecting a Hong Kong Chinese community and to determine the outcome by follow-up. Methods: All cases were accompanied by appropriate radiography and were confirmed by histopathology. Results: The clinical and conventional radiological presentations, differential diagnoses and outcomes of follow-up of five consecutive OOCs were reviewed. There were two males and three females. All affected the posterior sextant. The mean age at first presentation was 33.5 years. The mean of their period of prior awareness was 0.11 years. Swelling was the most frequent presenting symptom. All presented as well-defined corticated radiolucencies; three were unilocular and two were multilocular and all displayed expansion. This resulted in displacement and erosion of the lower border of the mandible in one case and the downward displacement past the lower border of a lateral cortex in two others. The inferior dental canal in each mandibular case exhibited both displacement and absence. The antrum was affected in a sole maxillary case. Four patients were followed up for a mean of 8.5 years. The fifth patient discharged himself shortly after surgery. No lesions recurred. Conclusions: OOCs in this community displayed an expansile character, but did not recur after moderately long follow-up. The time between the prior awareness of their disease and their presentation for diagnosis and treatment was, so far, the shortest for any lesion affecting the jaw in this Hong Kong Chinese community.

Section: Discussionmentioning

confidence: 99%

“…This is important as the Hong Kong Chinese have already displayed features in three benign odontogenic neoplasms [5][6][7][8][9] that differ from other communities. Therefore, a review of the newly recognized odontogenic neoplasm affecting this community is merited.…”

Section: Aims and Research Questionsmentioning

confidence: 99%

Orthokeratinized odontogenic cyst in a Hong Kong community: the clinical and radiological features

MacDonald-Jankowski

Li²

2010

“…This is important as Hong Kong Chinese are already known to display features in three benign odontogenic neoplasms [4][5][6][7] that differ from other communities. Therefore, a review of this newly recognized odontogenic neoplasm affecting this community is merited.…”

Section: Aims and Research Questionmentioning

confidence: 99%

Keratocystic odontogenic tumour in a Hong Kong community: the clinical and radiological features

MacDonald-Jankowski¹,

Li²

2010

Self Cite

Objectives: The aim of this study was to evaluate the clinical and conventional radiological features of a consecutive series of cases of ''keratocystic odontogenic tumour'' (KCOT) affecting a Hong Kong Chinese community and to determine their outcome by follow-up. Methods: All cases were accompanied by appropriate radiography and were histopathologically confirmed. Results: 33 consecutive KCOTs were reviewed. 18 patients were male. The mean age at first presentation was 30.6 years. Swelling was the most frequent presenting symptom. Those patients first presenting with pain were significantly older, whereas those first presenting with a maxillary lesion were significantly younger. The maxilla and mandible were affected in 13 and 20 cases, respectively. KCOTs were most frequently confined to the posterior sextants of both jaws. KCOTs affecting the maxilla were mainly unilocular, whereas those affecting the mandible were multilocular. Patients with multilocular KCOTs were significantly older. Patients with KCOTs associated with root resorption were significantly older, whereas patients associated with unerupted teeth were significantly younger. 69% displaced teeth, 41% resorbed them and 56% were associated with unerupted teeth. All but two were followed up for at least 2 years. Three lesions recurred. Conclusions: KCOTs in this community displayed some differences from those reported in the literature.

“…[9][10][11][12][13][14][15][16][17][18][19][20] The research question is described above; the search strategy, strategy for sifting the literature and interpretation of the data retrieved are set out below.…”

Section: Systematic Reviewmentioning

confidence: 99%

Orthokeratinized odontogenic cyst: a systematic review

MacDonald-Jankowski¹

2010

Self Cite

Objectives: The aims of the review were to evaluate the principal clinical and conventional radiographic features of orthokeratinized odontogenic cyst (OOC) by systematic review (SR), and to compare the frequency of OOC between four global groups. Methods: The databases searched were the PubMed interface of MEDLINE and LILACS. Only those reports of OOCs that occurred in a consecutive series of OOCs in the reporting authors' caseload were considered. Results: 37 reports on 36 case series were included in the SR. OOC affected males twice as frequently and the mandible almost 2.5 times as frequently. Although the mean age at first presentation was 35 years, the largest proportion of cases first presented in the third decade for the Western, East Asian and Latin American global groups. Seven reports included details of at least one clinical finding. 11 reported case series included at least 1 radiological feature. All OOCs were radiolucent, 93% were unilocular and 68% were associated with unerupted teeth. 28% of the reported case series included follow up. 4% of OCC recurred and all of these were in the Western global group. Conclusions: Although one feature of OOCs is that they are unlikely to recur, some do. Not only is there a lack of long-term follow up of large series with long-term outcomes of OOC, but there is a paucity of clinical and radiological details of OOC at initial presentation.