Background:- Colorectal carcinoma is the most common cancer after the breast cancer in female and bronchus cancer in male. P53 is a tumor suppressor gene, approximately half of colorectal cancers present mutation in p53 gene.
Objectives:- To determine the frequency and the pattern of p53expression in colorectal carcinoma by immunohistochemical technique and to correlate this expression with different clinicopathological parameters.
Materials and methods:-Thirty cases of colorectal carcinoma were included in this study, these cases were diagnosed in private pathology laboratories in Baghdad / Iraq from January 2015 to Jaune 2015. Clinicopathological parameters such as age , gender , pathological diagnosis , including the tumor site , lymph nodes status , grade and stage of tumor were taken from patients files.Sections of 4μm stained by hematoxylen and eosin stain and immunohistochemical stained for p53.
Results: Nineteen (63.3%) of the cases were males, 11(36.7%) cases were females, with age distribution ranging from (39-89) years with a mean age of 56.5 years . Ten cases(33.3%) located in the cecum , 3(10%)cases from each right colon , sigmoid 8 (26.7%) cases were from left colon and 6(20%) cases were from the rectum. Histologically the tumor grade range from moderately differentiated in 27 (90%) cases, and poorly differentiated in 3 (10%) cases. Regarding pathological staging (TNM system),2 (6.7%) cases were T2 ,24 (80%) were T3 , 4(13.3%) cases were T4. Lymph node involvement found in 14(46.7%) cases, and distant metastasis was found in 3(10%) cases. P53 expression was present in 11(36.7 %) cases, were distributed as follows:- weak in 1(3.3%) case,moderat in 3(10%) and marked in 7(23.4%) cases. There was no correlation between p53 expression and the clinicopathological parameters age , sex , histopathological grade, location , lymph nodes status and tumor stage.
Conclusion: There was no significant statistical correlation between P53 expression by tumor and different clinicopathological parameters in this study
Background: Adenoid cystic carcinoma (ACC) constitutes about 4% of salivary epithelial tumors and is the second common malignant epithelial salivary gland tumor involving both the major and minor salivary glands. Aims of the study is to evaluate immunohistochemical expression of Ki67 and p53 proteins in ACC. Materials and Methods: immunohistochemical analyses of fifteen cases of formalin – fixed paraffin – embedded tissues blocks of ACC of salivary glands using ki67 and p53 antibodies. Results: ki67 was expressed in 6 of 15 ACC (40%) while p53 aberration was demonstrated in 11 of tumor (73.3%). There was a statistically significant difference between the expression of ki67 and p53 proteins in ACC cases (p value = 0.041). Pearson’s cor
... Show MoreABSTRACT:
Objectives: The study aims to know the effectiveness of the educational program in the patient’s adherence to medication and diet and to know the relationship between the effectiveness of the education program and their demographic data related to the patient’s age, gender, marital status, education level, occupation, monthly income and residence.
Methodology: A quasi -experimental design study was performed on patient who attended to Gastroenterology and Hepatology Teaching Hospital, from March 2021 to September 2021. The non-probability sampling including 50 patients for case study and 30 patients for control group. The questionnaire consists of 3 parts, part one the socio
... Show MoreBackground: Several factors render multiple myeloma (MM) an interesting subject for study by researchers. These include marked progress in understanding the molecular biology of normal and neoplastic plasma cells and recent advances in molecular genetics techniques. Among molecular markers, p-53 cancer suppressor gene have been widely studied.
Aim: is to correlate p-53 protein expression in multiple myeloma, as examined by immunohistochemical method, with some pathological and clinical parameters (Clinical stage and cytological grade).
Patients and methods: This is a retrospective study; whereby archival paraffin-embedded BM tissue blocks along with the clinical and hematological records of fifty patients (
Background: Chronic Myeloid Leukemia (CML) occurs due to malignant transformation of a pluripotent stem cell. Progression is insidious from chronic to aggressive accelerated or blastic phases. Studies revealed a significant role of the tumor suppressor gene P53 in disease progression.
Objectives: To evaluate the immunohistochemical expression of mutant P53 protein in CML at different clinical phases.
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Background: Breast cancer is the most frequent cancer in women worldwide and in Iraq. Proliferation rates of neoplastic process can be useful in predicting prognosis, aggressiveness of cancers and to guide treatment protocols in clinical practice.
Objectives: To evaluate the role of Ki67 as a proliferative marker through analysing the associations between Ki67 with the clinic-pathological parameters, hormone receptors and Her2/neu expression.
Patients and methods: Forty paraffin blocks belonging to patient with breast carcinoma and ten blocks with benign diseases were included in this retrospective cross-sectional study and used for the immunohistochemical assessment of hormone receptors, Her2/neu and Ki67.
Results: Mean age of
Background: Chronic lymphocytic leukemia (CLL) results from a progressive accumulation of long-lived, functionally incompetent, nonproliferating lymphocytes.
Angiogenesis is defined as the formation of new capillaries from pre-existing blood vessels and plays an important role in the progression of solid tumors as well as several hematologic malignancies like CLL.
Patients and methods: A retrospective cross-sectional study done on 68 patients with CLL compared with 15 control individuals (anemic patients), all recruited at the Medical City Teaching Laboratories from January 2005 to December 2008. The bone marrow biopsy (BMB) of each was re-examined histologically. Immunohistochemical (IHC) technique was performed on BMB sections ut
Background: The role of Human papillomaviruses (HPV) in the etiology of ovarian cancer remains unclear and the results are controversial. Several studies have verified the presence of HPV DNA in both malignant and benign ovarian tumors.
Objectives: Determine the percentage of detection of HPV high (16&18) and low risk types (6&11) in surface epithelial ovarian carcinoma compared to benign and control groups.
Materials And Methods: Molecular detection and genotyping of HPV DNA were performed in 76 ovarian tissue blocks by using in situ hybridization (ISH) technique for detecting and localization of high risk HPV (16 and 18) and low risk HPV (6&11) types.
Results: The presence of ISH signals fo
Background: Colorectal cancer (CRC) represents the second most common malignancy and the fourth most common cause of cancer deaths. CRC can manifest early with bright red bleeding per rectum, tenesmus, and altered bowel habits. These symptoms are often attributed to benign lesions, including anal fissure. Our objective is to highlight the alarming scenario of an anal fissure masking the clinical features of an underlying colorectal cancer in healthy middle-aged patients.
Case Report
Our case report aims to discuss how congruent clinical features of benign-looking anal fissure can delay the diagnosis of rectal cancer. In January 2019, a healthy forty-four years old Iraqi male with no famil
... Show MoreBackground: P53 is an important tumor marker in many malignancies, the P53 gene is a tumor suppressor gene that plays a key role in the regulation of the cell cycle.