Biomedical subjects
H F Al-Bayaty
Publications and source records attributed to H F Al-Bayaty.
Soft tissue recurrence of a mandibular ameloblastoma causing facial deformity in the temporal region: case report.
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An epidemiological study of tori among 667 dental outpatients in Trinidad & Tobago, West Indies.
AIM: To study the prevalence of tori amongst dental outpatients, the ethnic and sex variations in their distribution, and their clinical features. SETTING: The School of Dentistry, St. Augustine, Trinidad & Tobago. PARTICIPANTS: 667 consecutive dental outpatients representing three different ethnic groups of the country. METHODS: Clinical examination for and recording of tori indicating their location, extent and clinical features and the age, sex and ethnic grouping of the patient. RESULTS: The overall prevalence of tori was 12.3 per cent. CONCLUSIONS: There were no significant differences in the prevalence among the African, Indian or mixed ethnic groups of patients examined. There seemed to be strong link between the coexistence of palatal and mandibular tori.
Metastasis of breast carcinoma to mandibular gingiva.
Metastatic tumours to the oral region are rare but more often involve the jaws rather than the oral soft tissues. In this report, an infiltrative ductal carcinoma of the breast that metastasised to the mandibular gingiva is presented. The patient consulted her dentist for what she thought was a dental abscess in the bicuspid region of the lower left jaw. However, her dentist referred her for a specialist opinion of the lesion. The patient's medical history revealed that she had undergone a breast 'lumpectomy' 1 year previously. A provisional diagnosis of primary or metastatic malignancy was made, and a biopsy was performed. Microscopically, the lesion showed features of a poorly differentiated infiltrative ductal carcinoma. Subsequent microscopic review of the primary lesion also showed a poorly differentiated infiltrating ductal carcinoma of the breast identical to the features observed in the metastatic lesion.
Facial swelling and gingival enlargement in a patient with sickle cell disease.
Sickle cell anemia is a frequent hemoglobinopathy in the Caribbean. While vaso-occlusion induced tissue injury in sickle cell anemia is common in various organs, orofacial lesions are rare. A 14-year-old Afro-Trinidadian boy suffering from sickle cell anemia developed an acute facial swelling, mimicking facial cellulitis of dental origin, which was caused by sickle cell-related hemorrhage. He also exhibited gingival enlargement, considered to be an outcome of repeated hemorrhagic episodes and fibrous repair. A new finding is the presence of erythrocyte-filled intraepithelial blood vessels in the gingival epithelium. We hypothesize this phenomena is a tissue response to hypoxia that occurs in sickle cell disease.