No abstract

Objective: To study the clinocopathological factors and presence of Human Pappiloma Virus in ameloblastoma by immnohistochemistry. Methods: It was a cross sectional study on 50 surgical specimens of ameloblastoma, completed in six months. These were selected and processed for initial screening by H&E and then by immunohistochemistry (IHC) for detection of Human Papilloma Virus (HPV). The questionnaire was designed to study the clinicopathological factors associated in these patients. Sections of 4µm were cut, placed on special positive charged glass slides in the Department of Pathology, King Edward Medical University. It was then examined by the histopathologists for grading and scoring of these lesions. Chi Square test was used to assess the differences found in types of ameloblastomas. The p-value was smaller than 0.05 (p < 0.05). Results: The mean age of the patients (12-80 years old) was 38.6±15.1 years, with male-female ratio 2.84: 1. HPV was positive in 9 (18%), whereas negative in of 41 (82%) patients. Among the positive, reactive HPV with score-1 was 8 and score-2 was 1. According to histological variant, follicular was present in 78%, Plexiform pattern in 8%, Conventional and Desmoplastic variants in one patient each; and Cystic and Acanthomatous were seen in two and three patients respectively. The mandible was involved in 39 patients, maxilla and right maxilla involved in 4 patients each, right retromolar, cheek and angle of mandible was seen in one patient each. About 16% patients had anterior, 66% had posterior and 18% had both anterior and posterior regions involved. Among the HPV positive reactive statistically, no significant difference was found with smoking, Paan and exposure to pesticides, factory or mine (p-value > 0.05). Among HPV positive reactive patients, eight had ameloblastoma whereas, 1 had ameloblastomic fibroma. There was no statistical significance of type, location and region of tumor in HPV positivity. Conclusion: Mandible and posterior region was more commonly involved. Follicular pattern was most common. There was no effect of exposure to pesticides, factory or mine, smoke and human papilloma virus in the etiology of ameloblastoma because only 18% of patients showed the association of HPV16 doi: https://doi.org/10.12669/pjms.35.6.909 How to cite this:Ali M, Bukhari MH, Hassan F, Illyas M. Clinicopathological study of ameloblastoma and detection of human papilloma virus by immunohistochemistry. Pak J Med Sci. 2019;35(6):1691-1696. doi: https://doi.org/10.12669/pjms.35.6.909 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Objective: To compare the expression of CD-10 in basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). Study Design: Comparative cross-sectional study. Place and Duration of Study: Armed Forces Institute of Pathology, Rawalpindi, from Jun 2016 to Jun 2017. Methodology: After taking ethics approval from the ethical review committee AFIP, previously diagnosed, thirty-eight cases of each basal cell carcinoma and squamous cell carcinoma were taken from the histopathology department of Armed Forces Institute of Pathology, Rawalpindi. CD-10 was applied according to standard protocol. The intensity of the CD-10 expression is assessed and categorized into three groups. CD-10 expression less than 10% in the tumour cell was taken as negative (-), 10 to 50% staining was taken as positive (+) and greater than 50% staining in tumour cells was taken as strong positive (++). Results: Out of the total 76 cases included in the study, 9 (24%) were strongly positive (++) whereas 20 (52.6%) were positive (+) and 9 (23.7%) were negative (-) for CD-10 expression. Out of the total 38 cases of SCC 4 (11%) cases showed positive CD-10 expression and 34 (89%) showed negative (-) results. A significant association (p-value <0.001) was seen when CD-10 expression in BCC was compared with SCC. Conclusion: CD-10 expression was higher in basal cell carcinoma when compared to squamous cell carcinoma in which CD-10 expression was very low/absent, hence CD-10 can serve as a useful adjunct marker in differentiating between basal cell carcinoma and squamous cell carcinoma in problematic cases.

Objective: This study was conducted to assess the prevalence of oral ulceration among systemic lupus erythematosus patients in Pakistan and their relationship with disease duration and severity. Materials & Methods: This cross-sectional study was conducted at Clinic for Arthritis and Rheumatic Diseases, DHQ Hospital, Rawalpindi Medical University, Pakistan. 75 adult patients, fulfilling the 1997 American College of Rheumatology diagnostic criteria for SLE, between January and December 2018 were included in the study. Clinical signs comprising of oral cavity were documented and their relationship to disease duration in years and organ damage using SLICC/ACR-DI score was studied. Descriptive statistics and logistic regression analysis were performed for statistical assessment. Results: 75 patients with SLE were included in the study. Female to male ratio was 9.5:1 (94.7% females and 5.3% males) and mean age of patients was 30.65 ± 10.71 years. 34 patients (45.3%) had oral ulcers. No significant association was observed between presence of oral ulcers with age (p-value= 0.43), with gender (p-value= 0.618) and disease duration (p-value=0.10). However, mean SLICC/ACR-DI score for SLE patients with oral ulcers was 2.0 as compared to 0.8 for the patients without oral ulcers (p-value=0.001). Conclusion: This study found that Pakistani patients with SLE have high prevalence (45.3%) of oral ulceration, especially in patients with poorly controlled disease and more evidence of organ damage. This warrants the need to create awareness about disease among healthcare workers and patients.