Diagnostic accuracy and cytomorphology analysis of fine-needle aspiration of salivary glands.

Background: Fine-needle aspiration (FNA) is an effective and safe procedure for analyzing salivary gland lesions. Various morphological and overlapping cytomorphology features can bring difficulty in diagnosis of the salivary gland lesions. This study aimed to evaluate the diagnostic accuracy of fine needle aspiration cytology of salivary glands lesions. Methods: There were 107 cases of cytology and 39 cases of histopathology of salivary gland lesions collected and reviewed from the archives of Anatomical Pathology Department, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo Hospital from 2005-2009. Seven cases of cytology were excluded, due to unsatisfactory specimens. Diagnostic test was applied to analyze the 39 pairs of cytology-histopathology cases. Results: There were 100 cases of salivary gland lesions cytology obtained, consisted of 27 negatives, eight cases inconclusive and 65 cases of neoplastic lesions. Of the 39 pair cases, fourteen cases showed result discrepancies between cytology and histopathology, with 3 false-negative cases and 1 false-positive case. The sensitivity and specificity of cytology analysis in differentiating malignant from non-malignant lesions were 82.35%, and 95.45% respectively, NPV 87.5% and PPV 93.34%. Conclusion: This study showed diagnostic accuracy of FNA cytology salivary gland lesions was varied, with 82.35% sensitivity and 95.45% specificity in differentiating malignant from non-malignant hence this information can still be used for case management.

The Sensitivity and Specifi city of a new Scoring System Using High Resolution Computed Tomography to Diagnose Lung Cancer.

Aim To find a non-invasive diagnostic method for lung cancer with the results almost as accurate as histopathological examinations using HRCT scoring system. Method This study was conducted from December 2006 until March 2008. A total of 55 persons, comprised of 40 male and 15 female patients suspected of having lung cancer, underwent high resolution computed tomography with and without contrast as well as CT-guided transthoracic needle aspiration to obtain cytology specimens. Results Histopathological examinations revealed the existence of lung cancer in 43 patients (78%) and benign lesions in 12 patients (22%). A scoring system was then made based on the similarities of fi ndings from CT and histopathologic examinations. In the the age group of 49 years and above, tumor volume of more than 68 cm3, HU of more than 21, spicula positive, angiogram positive and lymph node positive had a value of respectively 20, 19, 10, 24, 18, and 17 (total score 108). Conclusion This new method to diagnose lung cancer is constantly as accurate as histological findings with a sensitivity of 97.7% and a specifi city of 83,3% and a cut-off score of 35. According to this system, a score of less than 35 indicates that the lesions were benign while a score higher than 35 is suggestive malignant.

Presurgical cytologic diagnostic test of uterine cavity in ovarian malignant tumor.

There are several methods for diagnosing ovarian carcinoma, such as gynecological examination, ultrasonographic examination, and tumor marker examination. However, all these combinations have not yielded high specificity antl sensitivity results. For this reason, it is necessary to perform other examinations to enhance both specificity and sensitivity, and one of them which is of interest to be studied is cytological examination of uterine cavity. By cytological examination of uterine cavity, it is hope that malignant cells originating from ovarian malignant tumor can be found. Discovery of ovarian malignant cells is possible because of peristaltic mechanism in the fallopian tube and negative pressure from uterine cavity, that makes possible the transportation of ovarian malignant cells into uterine cavity through the tube. The objective of this study is to understand the sensitiviry and specificity of cytological examination of uterine cavity in detecting ovarian malignancy. This stucty was a diagnostic test with histological examination as the gold standard, to understand sensitivity, specificity, positive prediction value, and negative prediction value of cytological examination of uterine cavity. A total of 30 cases were included in the study. A nurnber of factors enhanced positive results in cytology of uterine cavity. Those factors were stage and ascites. The more advanced the stage, the greater the positive results, and the presence of ascites increased positive results. On diagnostic test, sensitivity of uterine cavity cytology was 48%, specificity 60, positive predictive value 85.7%, and negative predictive value 18.8% respectively. In conclusion, cytological examination of uterine cavity could be used as one of the methods in assistirtg the diagnosis of ovarian carcinoma.

Diagnostic test of endometrial cytobrush in cases of perimenopausal and postmenopausal hemorrhage.

Perimenopausal menopausal hemorrhage can be due to by a variety of causative factors. One of its dangerous causes is atypical hyperplasia and endometrial carcinoma. There are a number of risk factors for the occurrence of endometrial carcinoma. The group that has this risk belongs to high-risk group. In this high-risk group, it is necessary to have a method to identify the changes in endometrial abnormality. One of the alternatives is the examination of endometrial cytology. The objective of this study was to evaluate the sensitivity, specificity and correlation test between endometrial cytology and endometrial histology. This study was a diagnostic test of cytological examination of the endometrium as compared with endometrial histology. Endometrial cytology was performed with a modification of cytubrush and IUD shell. Specimen was dissolved into the centrifuged NaCl, and its deposits were then processed for cytological examination with Papanicolaou and Giemsa staining. After the taking of cytology, the process was continued with curettage of the endometrium, and the specimens were processed for cytological examination. Both of them were examined by anatomic pathologist. Statistical analysis used diagnostic test using histological examination of curetage specimens as gold standard. During the period of study 45 study samples were collected, among which 12 (26.66%) were endometrial adenocarcinoma, 6 (13.33%) with atypical hyperplasia, 11 (24.44%) with non-atypical hyperplasia, 15 (33.33%) were samples without abnormality, and one sample with endometritis. Actual correlation value was 57.8%, correlation because of possibility 3.38%, and correlation not because of possibility 54.42%, potential correlation not because of possibility 96.62%, and Kappa value 0.56. It was concluded that cytological examination of the endometriurn with cytobrush could be employed as a screening method in the abnormalities of endometrial thickness, with sensitivity of 62.5% and specificity of 62.2%.