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S N Tabrizi

Publications and source records attributed to S N Tabrizi.

58 records · Page 4Linked to original sources
PubMedDate not supplied

The absence of genital human papillomavirus DNA in virginal women.

Our aim was to determine the prevalence of human papillomavirus (HPV) infection in virginal women and to establish if other forms of sexual activity not involving penetration may contribute to the transmission of this infection. Female patients attending medical practitioners, and female high school students were recruited. Each participant answered an anonymous self answer questionnaire and collected a tampon specimen. Tampons were analysed for the presence of human papillomavirus by the polymerase chain reaction (L1 general primer and probe). Fifty-five female participants who were of a mean age of 18 years (range 13-41) were recruited. Twenty-three reported non-penetrative sexual activity. None of the 55 women had evidence of HPV infection (0%, upper 95% confidence interval 5.4%). Twelve tampons from sexually active women with normal Papanicolaou smears and a mean age of 26 years (range 19-44) attending a hospital clinic were analysed at the same time and four were found to be positive (P = 0.0006). We conclude that HPV infection prior to sexual intercourse, as determined by tampons specimens, is rare, even in those participating in other forms of sexual activity.

Adolescent↗
PubMedDate not supplied

Squamous cell carcinoma of the tongue in a child with Fanconi anemia: a case report and review of the literature.

This report documents a case of squamous cell carcinoma (SCC) of the tongue in a child with Fanconi anemia (FA). FA is an autosomal recessive syndrome defined by chromosomal breakage in response to diepoxybutane or mitomycin C in which many patients present with pancytopenia, hypoplastic bone marrow, hyperpigmentation of the skin, skeletal malformations, small stature, hypogonadism, and chromosomal aberrations. Such patients are prone to the development of hematological malignancies and squamous cell carcinoma, especially of the head and neck. Although FA appears to be genetically heterogeneous, all cases display abnormalities of DNA repair. A gene defective in one of the four subsets of FA patients has been defined. Defects in this gene are thought to play a role in the development of neoplasia in FA patients. However, many other factors may also contribute to the development of malignancies, including immune deficiencies, therapeutic strategies, and bone marrow transplantation. This report reviews the association of FA and SCC and highlights the many factors involved in the development of neoplasia within a single patient, including FA, cyclophosphamide, immunosuppression, X-irradiation, and chronic oral graft-versus-host disease. In addition, the human papillomavirus status, although negative, is documented for the first time in such a case.

Adolescent↗
PubMedDate not supplied

Juvenile laryngeal papillomatosis in a pediatric population: a clinicopathologic study.

A series of 22 children with juvenile laryngeal papillomatosis treated over a 31-year period is presented. The majority of patients were diagnosed when less than 5 years of age. Two patients died from the disease and four patients still had active disease at the completion of the study period. The duration of disease and number of recurrences were extremely variable. The number of recurrences was inversely related to the age of onset. The histologic findings were very similar in all patients, and no particular histologic feature had prognostic significance. In 20 patients, laryngeal biopsies were positive for human papillomavirus (HPV) 6/11 by either in situ hybridization (17) or polymerase chain reaction (19) or both (16). The number of patients who were HPV negative was small (two); interestingly, neither case had aggressive disease. Our findings suggest that age of onset and HPV status may be of prognostic value in determining the clinical course of the disease.

Chemotherapy, Adjuvant↗