A Case of Cotyledonoid Dissecting Leiomyoma With Associated Disseminated Peritoneal Leiomyomatosis: The Significance of Frozen Section in Identification of This Unusual Entity.

Cotyledonoid dissecting leiomyoma (CDL) is a rare variant of uterine leiomyoma. The tumor is benign, but the appearance and growth pattern are unusual and alarming. Disseminated peritoneal leiomyomatosis (DPL) is another rare tumor that can mimic malignancy. The occurrence of these two tumors in a single case is even rarer and has not been found in the literature to the best of our knowledge. We report a case of CDL with DPL in a 43-year-old Nepalese woman who presented with abdominal pain and per vaginal bleeding. Ultrasound showed a heterogeneous hypoechoic mass of size 25.1 × 15.5 × 9.4 cm in the pelvic cavity. A CT scan of the abdomen and pelvis revealed an ill-defined, heterogeneously enhancing lesion in the pelvis around the uterine fundus with a peritoneal nodule. The intraoperative frozen section evaluated the peritoneal deposit to be benign. Due to the large size of the uterine mass, a total abdominal hysterectomy and a bilateral salpingo-oophorectomy were performed. Macroscopically, a large heterogeneous intramural and exophytic mass was observed, which, on histopathology and immunohistochemistry (IHC), revealed the benign smooth muscle origin of the tumor. In the seven-month follow-up period, no recurrence or any other related complications were found. It is important to recognize this rare variant of leiomyoma with the possibility of dissemination that can also happen in leiomyoma to prevent aggressive and inappropriate overdiagnosis and overtreatment. Whenever possible, it is advisable to perform a frozen section biopsy and IHC for the correct diagnosis.

Infiltrating CD4 and CD8 lymphocytes in HPV infected uterine cervical milieu.

PURPOSE: Tumor infiltrating lymphocytes (TILs) have been extensively described in anti-tumor immunity, but their functional alterations in the immunoediting processes during neoplastic progression in the uterine cervix are still not clear. Our aim was to gain insight into cervical tissue T cell populations, determine if there are any differences in the localization and quantity distribution of T lymphocytes, and to evaluate their role in disease regression or progression in the cervical neoplastic milieu. PATIENTS AND METHODS: Serial section analysis of immunohistochemically stained CD4 and CD8 lymphocytes was performed on a total number of 72 samples, categorized into four cohorts: 23 HPV non-infected (HPV-) normal cervix, 20 HPV infected (HPV+) normal cervix, 17 HPV+ low grade cervical intraepithelial neoplasia (CIN), and 12 HPV+ high grade CIN. RESULTS: Low infiltrating lymphocytes (ILs) in normal cervix and high ILs in CIN were observed, while the trend of ILs increased with increasing grade of CIN, which was statistically significant (P<0.0001). Quantitative and localization analysis between the subsets of T cells showed that, in the epithelial layer, infiltrating CD8+ lymphocytes (CD8+ILs) were significantly higher than CD4+ILs in HPV+ normal cervix, while the trend decreased with increasing grade of CIN (P=0.011). Whereas, in the stromal layer, CD4+ILs were predominant in all study groups and no statistical difference was found between these groups. However, tumor infiltrating CD8+ lymphocytes (CD8+TILs) were noted to be significantly higher than CD4+TILs in severe dysplastic cases. CONCLUSION: T cell infiltrates were predominant as the grade of the lesion progressed into more advanced lesions, which likely represent the lesions that have persisted over time. The variation in the infiltration rate and the location of CD4+ILs and CD8ILs may suggest the efficacious role of CD8 T cells in eliminating HPV infected cervical epithelial cells and also provides insight into the complex role of TILs in facilitating and mediating sustained anti-tumor responses, hence preventing tumor outgrowth.

Burden of cervical neoplasia in mid-western rural Nepal: a population-based study.

OBJECTIVE: To assess the burden of cervical neoplasia in mid-western rural, Nepal using cytology, visual inspection with acetic acid (VIA) and visual inspection with Lugol's iodine (VILI). METHOD: A cross-sectional, population-based study was conducted. Total of 2,279 married, non-pregnant women aged 20-65 years participated in a screening clinic from May 2016 to January 2017. All eligible women completed self-report of socio-demographic and reproductive health data followed by screening tests. Biopsies were obtained from areas on the cervix assessed by VIA and or VILI to be abnormal. Final disease was confirmed by biopsy report. RESULTS: A total of 96.09% (n=2,190) women were eligible for this study with mean age 32.78±9.33 years. The overall rate of positive cytology, VIA, and VILI were 3.69%, 12.45%, and 16.89%, respectively. Sixty-two cases were biopsy proven cervical neoplasia. Altogether 78 (3.69%) cases were cytologically abnormal: 25 (1.18%) were atypical squamous cells of undetermined significance, 33 (1.56%) were low-grade squamous intraepithelial lesion, 11 (0.52%) were high-grade squamous intraepithelial lesion, and 9 (0.42%) were squamous cell carcinoma. Illiterate women appeared to be at higher risk for cervical neoplasia (p<0.001). Similarly, age ≥46 years (p<0.013), participant's multiple marriages or sexual partners (p<0.005), and positive human immunodeficiency virus status (p<0.001) were significantly associated with abnormal cytology. CONCLUSION: Based on cytology report, there is 3.69% prevalence of cervical neoplasia among women in a rural region of mid-western, Nepal. A "screen and treat" approach would be more attractive in low resource settings.

Prevalence and type-specific distribution of human papillomavirus infection among women in mid-western rural, Nepal- A population-based study.

BACKGROUND: Cervical cancer is the most common cancer among women in Nepal. The prevalence of human papillomavirus (HPV) 16 and or HPV 18 among women with cervical pre-cancer and cancer is higher than the incidence of HPV in the world population. The population-based epidemiological data of HPV in the general population in most parts of the country remains unknown. The objective of this study was to assess the prevalence and type distribution of HPV infection and association of abnormal cytology with high risk HPV infection among women in mid-western rural, Nepal. METHODS: A population-based cross sectional study was conducted in Jumla, one of the most remote districts in Nepal. A total of 1050 cervical samples were collected from married and non- pregnant women aged 20-65 years during mobile Cervical Cancer Screening Clinics conducted from May 2016 to January 2017. The presence of HPV DNA was firstly confirmed by HPV consensus PCR using PGMY09/PGMY11 designed primers, then HPV positive samples were further genotyped by the membrane hybridization method to detect the 21 high-risk HPV (HR-HPV) and low-risk HPV types. The prevalence of HR-HPV among women with normal and abnormal cytology was calculated. Data were analyzed using SPSS software for Windows. P < 0.05 was considered statistically significant. RESULTS: A total of 998 women were eligible for this study with the mean age 32.6 ± 8.6 years, and the mean marital age was 16.7 ± 3.8 years. The overall prevalence of HPV infections was 19.7%. HR-HPV and low-risk HPV were 11.7 and 8.7% respectively. The six most common HR-HPV types were HPV16, 39, 58, 33, 51 and 18. HR-HPV infection among the women with abnormal and normal cytology was of 27.3 and 10.8% respectively. CONCLUSIONS: There was a higher prevalence of HR-HPV infection among women living in Jumla than other parts of Nepal. This study provides preliminary information on overall HPV and type-specific HR-HPV prevalence, HR-HPV 16, 39, 58, 33, 51, and 18 are the most prevalent genotypes in this region. The data contribute to the epidemiological knowledge about HPV and type-specific HR-HPV genotypes prevalence in mid-Western Nepal.

An Ulcerated Ileal Gastrointestinal Stromal Tumor Disguised as Acute Appendicitis.

BACKGROUND: Gastrointestinal stromal tumor (GIST) of the ileum is not a common differential to consider in the management of acute right iliac fossa (RIF) pain and tenderness. Finding of a normal-looking appendix intraoperatively should arouse the surgeon to explore further and look for other unanticipated pathologies. We present a case, clinically diagnosed as acute appendicitis and intraoperatively found to be an ulcerated ileal GIST. CASE PRESENTATION: A 28-year-old female without previous comorbidities presented to the emergency unit with sudden pain around the umbilicus that later migrated and localized to the RIF for one day. There was associated intermittent fever and anorexia without urinary symptoms. Abdominal examination revealed guarding and rebound tenderness at RIF. Examination by 2 senior surgeons at different points of time, the same day, made a clinical diagnosis of acute appendicitis. Ultrasonogram (USG) was inconclusive. At laparotomy through Lanz incision, the appendix was found to be normal and no other pathology was identified on walking bowel up to 3 ft proximal to ileocecal junction (ICJ). Just when closure was thought of, an ulcerated lesion could be seen through the medial aspect of the incision. On further exploration, a 7 × 5 cm ulcerated lesion arising from the antimesenteric border of the ileum was noted with localized interloop hemoperitoneum and inflammatory exudates. Ileal segmental resection anastomosis was done with peritoneal toileting. The lesion was subsequently reported to be an ulcerated malignant GIST. CONCLUSION: The commonest cause of RIF pain with localized peritonitis is an acutely inflamed appendix. Dilemma arises when the appendix is found to look normal. Further exploration is indicted to not miss other findings.

Accuracy of Visual Tests for Primary Cervical Cancer Screening in Rural Nepal.

INTRODUCTION: In Nepal, cervical cancer is the most common female cancer. Unfortunately, there is no uniform effective screening system available all around the country. The objective of this study is to evaluate the cytology, Visual Inspection with Acetic Acid and with Lugol's Iodine alone or in combination to detect a pre-cancerous lesion in rural Nepal. METHODS: It is an analytical cross-sectional study. Convenience sampling technique was used to select participants who were apparently healthy, married, non- pregnant women of aged 20-65 years for cervical cancer screening program. Screening tests were performed on all eligible women (n=2143) after socio-demographic and reproductive health data collection. A biopsy was applied as a gold standard test. Cross-tabulations were used to describe the test sensitivity, specificity, positive predictive value, and negative predictive value at a 95% confidence interval. Diagnostic odds ratio was also calculated. RESULTS: A majority, 2143 (94%), of women accepted and participated in this study. The sensitivity vs specificity of cytology, VIA, and VILI was 57.1% vs 98.3%, 71.4% vs 88.8% and 78.6% vs 85.1%, and of the co-testing of 'Both positive VIA and VILI' and 'Either positive VIA or VILI' was 64.3% vs 85.7% and 90.1% vs 83.7% respectively. Negative predictive value of all tests exceeded 99.7%. Cytology had the highest Diagnostic odds ratio (64.9), followed by the co-test 'Either positive VIA or VILI' (27.7). CONCLUSIONS: Cervical cancer screening by co-testing 'Either positive VIA or VILI' is more useful than cytology; VIA and or VILI are easy, safe, feasible and well-accepted tests in a low resource setting, Nepal.