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Öğe Diagnostic Yield of Transabdominal Ultrasound-Guided Core Needle Method in Biopsies of Pancreatic Lesions(Lippincott Williams & Wilkins, 2023) Turgut, Bekir; Bakdik, Sueleyman; oencue, Fatih; Kuecuekosmanoglu, Ilknur; Eren Karanis, Meryem Ilkay; Kerimoglu, Ramazan Saygin; Saracoglu, MustafaIn this study, it was aimed to contribute to the selection of the method to perform pancreatic lesion biopsies.Data of patients, who had undergone a percutaneous biopsy because of pancreatic masses in our institution in the period between January 2015 and November 2019, were evaluated retrospectively. The percutaneous biopsy method, the type of needle used in the procedure, and periprocedural complications were listed. Pathology and cytology reports in the archive were reviewed, and biopsy results were divided into 3 groups as benign, malignant, and inadequate. Of 308 patients included in the study, the diagnostic accuracy was verified in 124 patients through the assessment of surgical outcomes, results of biopsies from metastatic lesions, or follow-up findings. The verified results were classified as true-positives and true-negatives.Of a total of 308 patients included in the study, 23 underwent a fine-needle aspiration biopsy (FNAB) and 285 underwent a core needle biopsy (CNB). No statistical differences were observed in sample acquisition success and complications between the groups.Of the lesions with a confirmed pathological diagnosis, 67.74% were malignant and 32.26% were benign. The diagnosis was correct in 107 of 112 CNB patients (95.54%) and 9 of 12 FNAB patients (75.00%). When the success of the 2 methods was compared, it was found that outcomes of CNB were statistically more successful compared with those of FNAB.A transabdominal ultrasound-guided percutaneous CNB is a safe method with a high diagnostic yield to perform a biopsy of the pancreas.Öğe Relationship between histomorphological findings and platelet activation in psoriasis(Wiley, 2022) Eren Karanis, Meryem Ilkay; Kucukosmanoglu, Ilknur; Oltulu, Pembe; Kilinc, Fahriye; Ozer, IlkayBackground Elevated platelet count (PC), mean platelet volume (MPV), and Platelet Mass Index (PMI) are reported in patients with psoriasis, while platelet activation is associated with psoriasis severity. Available studies examining the relationship between platelet activation markers and psoriasis have mostly focused on psoriasis area severity index. To the best of our knowledge, there is no study examining the relationship between histopathological features of a single psoriatic plaque and platelet activation. The present study examined the relationship between histomorphological findings obtained by morphometric analysis and psoriasis patients' PC, MPV, and PMI values. Materials and Methods Morphometric analysis was performed on hematoxylin and eosin-stained preparations of skin biopsies to measure minimum suprapapillary epidermis thickness (SPETmin) and maximum epidermal thickness (ETmax), maximum suprapapillary keratosis thickness (SPKTmax), and maximum keratosis thickness (KTmax). The relationship between PC, MPV, PMI, and morphometric skin biopsy outcomes was evaluated. Results While an inverse correlation was found between SPETmin and PC and PMI in cases with psoriasis (p values = 0.015 and 0.005, r values = -0.238 and -0.271, respectively), no significant correlation was found between SPETmin and MPV (p value = 0.600, r value = -. 052). On the contrary, no significant correlation was found between SPKTmax, ETmax, and KTmax values and platelet parameters. Conclusion We assume that an increased risk of platelet activation-related diseases is expected in psoriasis patients displaying histopathological findings of suprapapillary thinning due to increased platelet activation; therefore, it may be beneficial to monitor these patients in terms of such risks.