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Aim: To establish the diagnostic utility of D2-40 IHC stain in dermatofibroma, by determining its positivity of expression. Study design: It was a Cross-sectional study Setting: The study was conducted in Department of Histopathology, Chughtai Institute of Pathology Duration of study: Six months (1st August 2018 to 31st January 2019) Methods: A total 70 samples were included. The clinical parameters like age and gender were recorded. The histological preparation was performed by classic method for inclusion in paraffin followed by haematoxylin-eosin staining. The immunohistochemical analysis was performed on serial sections using immune-enzymatic soluble complex method. The antibody used was D2-40 polyclonal antibody from DAKO. Diffuse crisp cytoplasmic D2-40 staining was considered positive. Results: The mean age was 32.76±10.65 years and male to female ratio was 1:1.4. There were 70% cases have D2-40 positivity for dermatofibroma and 30% have no D2-40 positivity for dermatofibroma and mean duration of disease was 9.05±6.33 months. There were significant difference (P

Background: Diffuse large B-cell lymphoma (DLBCL) is a heterogenous neoplasm of lymphoid series cells constituting 30%–40% of non-Hodgkin lymphoma in adults. DLBCL presents significant heterogeneity Aim: To determine the frequency of activated B-cell subtype of DLBCL by using Hans algorithm. Methods: It was designed as a cross sectional study conducted in a duration of six months (5th Jun 2018 to 7th January 2019). All data was collected by using a Performa. The clinical parameters like age and gender were recorded. The histopathological method used was paraffin embedding and hematoxylin–eosin staining. The immunohistochemical technique used on serial sections was immune-enzymatic soluble complex method. SPSS version 23 was used for data entry and analysis. Mean and standard deviation was determined for quantitative variables like age and tumor size. Calculation of qualitative variables like gender, tumor site (nodal as well as extra-nodal) and immunohistochemical staining was done in the form of frequencies and percentages. The mean age of the patients was 48.55±15.41 years. Majority of them were male with frequency of 69(71.9%) and female were 27(28.1%). Mean size of lymphoma was 12.44±4.24cm in the patients. Most of the cells were nodal with frequency of 58(60.4%) and a few extra nodal with frequency of 38(39.6%). It was noticed that germinal centre B-cell type was in 53(55.2%) and activated B-cell type lymphoma was present in 43(44.8%). Conclusion: It is observed that frequency of the activated B–cell type lymphoma are less common in patients with lymphoma. Keyword: Lymphoma, Germinal, carcinoma

Aim: To determine the frequency of different diseases resulting in cervical lymphadenopathy in specimens of patients presenting in tertiary care hospital. Methodology: It was a cross sectional study conducted at the histopathology section of the pathology department of Services Institute of Medical Sciences/Services Hospital Lahore. The study was approved by the ethical committee of the institution. The study was completed in six months.100 cases fulfilling the inclusion criteria were registered. Inclusion criteria included patients above 16 years of age, patients from both sexes, unilateral or bilateral irrespective of duration. Lymph nodes less than 1cm were not included in the study. Informed consent was taken. Both FNAC and Biopsy were used as diagnostic tools. All the data was analysed with SPSS version 11. Results: During a period of six months, a total of 100 cases of cervical lymphadenopathy were studied. These included 75 benign and 25 malignant cases. Out of benign cases 53% were diagnosed as tuberculous lymphadenitis. About 81.3% were in the age range of 16-25 years and 18.7% were in the age range of 26-35 years. 22% cases were diagnosed as reactive lymphadenitis. About 54.54% of these patients were in the age range of 16-25 years and 45.46% were in the age range of 26-35 years. The highest frequency among malignant lesions consisted of Non-Hodgkin lymphoma 16% followed by Hodgkin lymphoma 5% and metastatic disease 4%.The age range of malignant lesions was in the range of 36-78 years. Conclusion: Our study concludes that cervical lymphadenopathy is the common clinical presentation in our setup and tuberculosis is the commonest cause. Keywords: Hodgkin lymphoma, Non-Hodgkin lymphoma, Fine needle aspiration cytology