Zehra Bozdag

Routine histopathologic examination of appendectomy specimens: retrospective analysis of 1255 patients.

The objective of this study was to analyze the clinical benefit of histopathologic analysis of appendectomy specimens from patients with an initial diagnosis of acute appendicitis. We retrospectively analyzed the demographic and histopathologic data of 1255 patients (712 males, 543 females; age range, 17-85 years) who underwent appendectomy to treat an initial diagnosis of acute appendicitis. Patients who underwent incidental appendectomy during other surgeries were excluded from the study. Histopathologic findings of the appendectomy specimens were used to confirm the initial diagnosis. Ninety-four percent of the appendectomy specimens were positive for appendicitis. Of those, 880 were phlegmonous appendicitis, 148 were gangrenous appendicitis with perforation, and the remaining 88 showed unusual histopathologic findings. In the 88 specimens with unusual pathology, fibrous obliteration was observed in 57 specimens, carcinoid tumor in 11, Encheliophis vermicularis parasite infection in 8, granulatomous inflammation in 6, appendiceal endometriosis in 2, and 1 specimen each showed mucocele, eosinophilic infiltration, Taenia saginata parasite infection, and appendicular diverticulitis. All carcinoid tumors were located in the distal appendix. Six of the 11 carcinoid tumors were defined by histopathology as involving tubular cells, and the other 5 as involving enterochromaffin cells. Six patients had muscularis propria invasion, 2 patients had submucosa invasion, 2 patients had mesoappendix invasion, and 1 patient had serosal invasion. All patients with tumors remained disease free during the follow-up (range, 1-27 months). We conclude that when the ratio of unusual pathologic findings for appendectomy specimens is considered, it is evident that all surgical specimens should be subjected to careful histologic examination.

Squamous cell carcinoma of the renal pelvis associated with kidney stones: radiologic imaging features with gross and histopathological correlation.

Squamous cell carcinoma (SCC) of the renal pelvis is a rare neoplasm and is usually associated with long standing renal stone disease. This tumor is aggressive in nature and usually has a poor prognosis. We report a case who presented with sudden significant weight loss. During the radiologic investigation, a renal mass and staghorn calculi were detected in the right kidney. The patient subsequently underwent right radical nephrectomy. Pathological diagnosis was SCC of renal pelvis with extensive infiltration in to the renal parenchyma. The radiologic imaging features and histopathologic findings of this rare tumor are discussed in this report.

An unexpected reason for elevated human chorionic gonadotropin in a young woman. Cervical squamous carcinoma

Human chorionic gonadotropin has been used for decades, in addition to specific investigations, to detect pregnancy, trophoblastic tumors, as well as congenital defects. Rarely, it can be elevated in non-trophoblastic tumors such as squamous cell cancers and germ cell tumors. A 33-year-old Asian Syrian female had irregular menses accompanied with feelings of heaviness in the vagina. In addition to routine investigations, we measured the serum beta human chorionic gonadotropin (ß-HCG) level (based on the patient’s complaint of amenorrhea), which was 50.05 ml UI/ml. Cervical biopsy revealed a non-keratinized large cell squamous carcinoma. After excluding other causes, ß-hCG elevation was explained by the ectopic secretion of cancer cells line. Cervical biopsy was suggestive of large cell non-keratinizing squamous cell carcinoma and positive for human chorionic gonadotropin on immunohistochemistry. As a result, we manage the possibility of ectopic secretion of ß-HCG from non- trophoblastic disease.

Histopathological features of bisphosphonates related osteonecrosis of the jaw in rats with and without vitamin d supplementation

OBJECTIVE Aim of this study was to investigate the effect of vitamin-D3 on the osteonecrosis of bone that was induced after tooth extraction was conducted on rats that were given zoledronic acid (Z.A). MATERIAL AND METHODS Animals were divided into four groups. Two of the experimental groups were divided into two subgroups, third study group was not divided into subgroups, and control group was divided into three subgroups. Z.A was administered twice per week over the course of 7 weeks, dexamethasone was administered twice a week during the 5th-6th-7th weeks to all groups. Dental extraction was performed by drilling around the tooth at 7th week. In study-group-1; vitamin-D was administered twice per week during the 5th-6th-7th weeks. In study-group 2; vitamin-D was administered twice per week during the 8th-9th-10th weeks. In study-group-3; vitamin-D was administered twice per week during the 15th-16th-17th weeks. The animals were sacrificed at 10th-15th-17th weeks, and histologic samples were taken. RESULTS Postoperative-15-group had a lower osteoblast number, which was statistically significant as compared to preoperative-15 and control-15-group. Control-10-group showed significantly lower osteoclast number in comparison to preoperative-10 and postoperative-10-group. Osteoclast number was significantly higher in the osteonecrosis-17-group as compared to control-17-group. Preoperative-10-group showed significantly higher inflammation in comparison to control-10-group. Postoperative-15-group had a lower histologic osteonecrosis, which was statistically significant as compared to the control-15-group. Macroscopic osteonecrosis was significantly higher in the control-17-group in comparison to the osteonecrosis-17-group. CONCLUSIONS We concluded that there are some proofs for the treatment of BRONJ with systemic using of vitamin-D.

Chondrosarcoma mimicking an adnexal mass: A very rare case report

Chondrosarcoma is considered as a common primary bone sarcoma. These sarcomas can form large masses without any specific symptoms because there are no barriers in pelvic anatomy to prevent the enlargement of tumors, and can mimic ovarian masses. We present a pelvic chondrosarcoma in a woman aged 37 years who was misdiagnosed as having an ovarian mass due to the limited information obtained from imaging studies. Pelvic chondrosarcoma should be considered in patients who have pelvic masses with solid components. It should be kept in mind that interventions should be performed at centers where there are orthopedic surgeons with experience of this subject.

The re-awakening of hCG expression. Its role in the diagnosis of cervical squamous cell carcinoma

Objectives: To compare immunohistochemical detection of Human chorionic gonadotropin (hCG) expression in paraffin embedded tissue of squamous cell carcinomas (SCC) and high grade squamous intraepithelial lesions (HSIL). Methods: The samples in this retrospective study were obtained from the archives of the Pathology Department at Gaziantep University, Gaziantep, Turkey, over the period from January 2012 to September 2016. The study group consisted of 55 cases of SCC and 45 cases of HSIL. Tissue expression of hCG was detected by specific binding of anti-hCG antibody using an automated immunohistochemistry staining device. The categorical variables of intensity and coverage were analyzed statistically using Pearson Chi-Square test. Results: High grade squamous cell lesions cases showed weak (84.4%, n=38/45) to no (15.6%, n=7/45) staining for hCG. None of the HSIL cases showed strong positivity. Strong positivity for hCG was detected in 90.9% (n=50/55) of SCC cases. Conclusion: Our study supports the association of ectopic hCG expression in cancer pathogenesis by demonstrating strong hCG immunoreactivity only in SCC cases. This finding can be helpful in supporting the diagnosis of invasive carcinoma in small or fragmented biopsies, which can on their own be confusing for the pathologists.

Gastrointestinal system-derived secondary gynecologic tumors: 10 years experience at a single center

Aim: To perform a retrospective review of gynecologic malignancies originating from gastrointestinal system. Material and Methods: The study included 35 patients who underwent surgery at Gaziantep University, Faculty of Medicine, Department of Gynecology and Obstetrics from January 2007 to December 2017 and they were diagnosed with secondary gynecological malignancies originating from the gastrointestinal system (GIS) in their pathological examination. The patientsÂ’ age, primary tumor, and metastatic tumor localization and size were recorded. The malignancies were classified based on origin, as those arising from the colon, appendix, pancreas, stomach, peritoneum, and those of an unknown origin. Results: The mean age of the patients was 50.8 years (min: 24, max: 98) and the mean tumor diameter was 9.8 cm (min: 2 cm, max: 23 cm). Malignancies originating from the colon were most common secondary gynecologic malignancies. The primary tumor was localized at the colon in 21 patients (60%), stomach in eight (22.8%), and in the pancreas in one patient, appendix in one patient and peritoneum in one patient (2.8%). The origin of the primary tumor could not be determined in three patients (8.5%) as follow-up was not performed in our hospital for these patients. Of the malignancies originating from the colon (n=21), 16 (76.1%) metastasized to the ovaries, four (19%) to the vagina, and one (4.7%) to the cervix, while all tumors originating from the stomach, peritoneum, pancreas, appendix and those derived from the GIS without specific origin metastasized to the ovaries. Of the ovarian metastases, 26 (86.6%) were bilateral while four (13.3%) were unilateral. In metastatic tumors, pathological diagnoses included adenocarcinoma, signet ring cell carcinoma and mucinous carcinoma. Conclusion: Female genital system is among the substantial targets of metastasis of GIS-derived tumors. Metastatic tumors have a more aggressive behavior. Metastatic tumors must be distinguished from primary tumors as treatment modalities differ in these tumors. For these reasons, a multidisciplinary approach should be employed in the diagnosis, management and follow-up of cases, and the genital system should be screened carefully during both preoperative assessment and postoperative follow-up in patients with primary GIS malignancies.

Early vulvar and umbilical incisional scar recurrence of cervical squamous cell carcinoma: Earlier than usually expected

Cutaneous metastasis is considered as a hazardous condition depending on the mean survival around 9 months, which usually originates from cancers of the breast, lung, ovary, colon, and rarely from the cervix. The crucial prognostic factor of cutaneous metastasis depends on the period between the primary malignancy and cutaneous metastasis. We report two cases of the unusual presentation of squamous cell cancer of the cervix that developed vulvar and umbilical metastasis in the 5th month of primary treatment. Both of our patients survived for 11 months following the primary treatment. In addition, our first case is the earliest vulvar recurrence of cervical carcinoma in the English literature following appropriate medical and surgical management.

Metastasis of a Renal Collecting Duct Adenocarcinoma to the Oral Cavity After Tooth Extraction

Metastatic tumors rarely occur in the oral cavity. The most common of the oral metastases are lung cancers in males, and breast and genital cancers in females. The most common primary tumor metastasis to the oral cavity is from the lung, kidney, liver, prostate, and colorectal cancers. The metastatic lesions are similar to oral lesions such as pyogenic granuloma, giant cell lesions, gingival polyps, hemangioma, peripheral fibroma, and adenoid squamous cell carcinoma. Therefore, the diagnosis of primary tumors is challenging. To our knowledge, this is the first reported case to feature metastasis of a renal collecting duct adenocarcinoma to the oral cavity after tooth extraction.

Cytological and cytomorphometric characteristics of buccal mucosa cells from smokeless tobacco users.

Use of smokeless tobacco (ST) is increasing in many communities. We investigated whether ST alters the cytological and cytomorphometric features of buccal mucosa cells.