1.Elastofibroma dorsi: a rare case report emphasizing the clinical presentation, radiological diagnosis, and surgical treatment
Şükrü KASAP ; Muhammed Said AYDIN ; Gokay OZLER ; Onur OZVURMAZ ; Celal KAHRAMAN ; Hasan Can ÇOBAN ; Mert KAHRAMAN ; Ozan DAĞDELEN
The Ewha Medical Journal 2026;49(2):e13-
Elastofibroma dorsi is a rare, benign soft tissue tumor that typically arises in the infrascapular region. Although it is often asymptomatic, some patients experience pain or a snapping sensation during shoulder movement, which warrants surgical excision. We report a symptomatic case in a middle-aged male patient, highlighting the diagnostic imaging features and surgical management of this condition.
2.Mucocele of the rectal stump: mucinous cystic neoplasm with low-grade dysplasia simulating low-grade appendiceal mucinous neoplasm
Hasan Basri AYDIN ; Maria FARAZ ; A. David CHISMARK ; Haiyan QIU ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2025;59(2):139-146
Mucoceles, commonly observed in the appendix, are mucin-filled, dilated structures arising from a range of etiologies. Cases associated with dysplastic or neoplastic epithelium can rupture and disseminate within the abdominopelvic cavity. Similar lesions in other parts of the colon are exceedingly rare, with only 16 colonic mucoceles having been reported. The first case of a colonic mucinous neoplasm with dysplasia resembling a low-grade appendiceal mucinous neoplasm involving rectal stump was described in 2016. Here, we present the second such case arising in the rectal stump, identified in a 44-year-old male with extensive surgical history. Microscopic examination revealed low-grade dysplastic epithelium lining the cyst and mucin dissecting into the stroma, without evidence of rupture or extramural mucin. The patient was followed for 16 months without recurrence or peritoneal disease. The exact etiology and outcome of these rare lesions remain unknown, requiring close follow-up.
3.Mucocele of the rectal stump: mucinous cystic neoplasm with low-grade dysplasia simulating low-grade appendiceal mucinous neoplasm
Hasan Basri AYDIN ; Maria FARAZ ; A. David CHISMARK ; Haiyan QIU ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2025;59(2):139-146
Mucoceles, commonly observed in the appendix, are mucin-filled, dilated structures arising from a range of etiologies. Cases associated with dysplastic or neoplastic epithelium can rupture and disseminate within the abdominopelvic cavity. Similar lesions in other parts of the colon are exceedingly rare, with only 16 colonic mucoceles having been reported. The first case of a colonic mucinous neoplasm with dysplasia resembling a low-grade appendiceal mucinous neoplasm involving rectal stump was described in 2016. Here, we present the second such case arising in the rectal stump, identified in a 44-year-old male with extensive surgical history. Microscopic examination revealed low-grade dysplastic epithelium lining the cyst and mucin dissecting into the stroma, without evidence of rupture or extramural mucin. The patient was followed for 16 months without recurrence or peritoneal disease. The exact etiology and outcome of these rare lesions remain unknown, requiring close follow-up.
4.Mucocele of the rectal stump: mucinous cystic neoplasm with low-grade dysplasia simulating low-grade appendiceal mucinous neoplasm
Hasan Basri AYDIN ; Maria FARAZ ; A. David CHISMARK ; Haiyan QIU ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2025;59(2):139-146
Mucoceles, commonly observed in the appendix, are mucin-filled, dilated structures arising from a range of etiologies. Cases associated with dysplastic or neoplastic epithelium can rupture and disseminate within the abdominopelvic cavity. Similar lesions in other parts of the colon are exceedingly rare, with only 16 colonic mucoceles having been reported. The first case of a colonic mucinous neoplasm with dysplasia resembling a low-grade appendiceal mucinous neoplasm involving rectal stump was described in 2016. Here, we present the second such case arising in the rectal stump, identified in a 44-year-old male with extensive surgical history. Microscopic examination revealed low-grade dysplastic epithelium lining the cyst and mucin dissecting into the stroma, without evidence of rupture or extramural mucin. The patient was followed for 16 months without recurrence or peritoneal disease. The exact etiology and outcome of these rare lesions remain unknown, requiring close follow-up.
5.Patient-reported outcomes after hemorrhoid surgery: early results from a prospective, nationwide, real-world, cohort study on diverse approaches
Metin KEMENT ; Atıf TEKIN ; Hakan BAYSAL ; Salih TOSUN ; Orhan ALIMOĞLU ; İlker SÜCÜLLÜ ; Osman CIVIL ; Nevin SAKOĞLU ; Naciye Çiğdem ARSLAN ; Cihad TATAR ; Ali Emre NAYCI ; Aziz ARI ; Ensar ÇAKIR ; Rozan KAYA ; İlknur TURAN ; Taygun GÜLŞEN ; Serhat MERIÇ ; Erkan YAVUZ ; Nihat BUĞDAYCI ; Farid Mohamad HAMAD ; Sezai LEVENTOĞLU ; Ramazan KOZAN ; Özkan AKPINAR ; Hakan YANAR ; Fatih YANAR ; Hasan Fehmi KÜÇÜK ; Mehmet KARAHAN ; Selçuk KAYA ; Nail Can ADIGÜZEL ; Tolga ÖNDER ; İlker ABCI ; Ahmet Zeki AYDIN ; Ömer Faruk ÖZKAN ; Nurhilal KIZILTOPRAK ; Berkay ÖZCAN ; Anıl ORHAN ; Alp Ömer CANTÜRK ; Murat TAN ; Yusuf BILGIN ; Harun ÇOK ; Azamet CEZIT ; Mehmet Mahir FERSAHOĞLU ; Mustafa ÖNCEL
Annals of Coloproctology 2025;41(6):573-585
Purpose:
Real-world evidence comparing surgical techniques for symptomatic hemorrhoidal disease (HD) remains limited, despite the availability of multiple approaches. This study aimed to evaluate short-term, interim outcomes from a prospective, nationwide cohort study that compared the effectiveness of different operative techniques based on patient-reported outcome measures (PROMs) in patients with symptomatic HD.
Methods:
A prospective, nationwide cohort study was conducted at 20 tertiary care centers across Turkiye between July 2022 and July 2024. Adult patients aged 18 years or older with symptomatic HD (grades I–IV) who underwent surgery during this period were included. The choice of procedure was determined by the operating surgeon, and patients were categorized into excisional, fixative, and ablative groups according to the surgical approach used. The primary outcomes were changes in the Hemorrhoidal Disease Symptom Score, Short Health ScaleHD, visual analog scale for pain, and patient satisfaction, assessed from the preoperative period to postoperative day 7 and postoperative week 6.
Results:
The study included a total of 315 patients after excluding those who did not fulfil the inclusion criteria. Among them, 239 (78.9%) were male, with a mean age of 43.7±11.7 years. The distribution of patients across surgical groups was 207 (65.7%) in the excisional group, 30 (9.5%) in the fixative group, and 78 (24.8%) in the ablative group. All groups demonstrated significant improvements in PROM scores from preoperative to postoperative assessments. However, no statistically significant differences were observed between groups at any time point for PROM scores or for changes in PROM scores across consecutive evaluations (P≥0.05 for all comparisons). Urinary retention occurred more frequently, and hospital stays were longer in the fixative group (P=0.006 and P<0.001, respectively). The excisional group had a greater need for narcotic use and longer duration of use (P=0.003 and P<0.001, respectively).
Conclusion
This real-world cohort study shows that all 3 surgical approaches are effective for HD, providing comparable short-term symptomatic relief and patient satisfaction. These techniques appear equally valid treatment options, and the choice of procedure may best be individualized based on patient-specific characteristics and surgeon preference.Trial registration: ClinicalTrials.gov identifier: NCT05429060
6.Brain invasion of bovine coronavirus: Virology molecular analysis of bovine coronavirus infection in calves with severe pneumonia and neurological signs
Semaha Gul YILMAZ ; Ozge AYDIN ; Hasan Emre TALI ; Gizem KARADAG ; Kivilcim SONMEZ ; Erhan BAYRAKTAR ; Aysun YILMAZ ; Nuri TURAN ; Zihni MUTLU ; Munir IQBAL ; Jurgen A. RICHT ; Huseyin YILMAZ
Journal of Veterinary Science 2024;25(4):e45-
Objective:
This study conducted virological investigations of calves showing diarrhea and respiratory and neurological signs.
Methods:
An outbreak of diarrhea, respiratory, and neurological disorders occurred among the 12 calves in July 2022 in Istanbul, Türkiye. Two of these calves exhibited neurological signs and died a few days after the appearance of symptoms. One of these calves was necropsied and analyzed using molecular and histopathological tests.
Results:
BCoV RNA was detected in the brain, lung, spleen, liver, and intestine of the calf that had neurological signs by real-time reverse transcription polymerase chain reaction.Immunostaining was also observed in the intestine and brain. A 622 bp S1 gene product was noted on gel electrophoresis only in the brain. Phylogenetic analysis indicated that the BCoV detected in this study had a high proximity to the BCoV strain GIb with 99.19% nucleotide sequence homology to the strains detected in Poland, Israel, Türkiye, and France. No distinct genetic lineages were observed when the brain isolate was compared with the respiratory and enteric strains reported to GenBank. In addition, the highest identity (98,72%) was obtained with the HECV 4408 and L07748 strains of human coronaviruses.
Conclusions
and Relevance: The strain detected in a calf brain belongs to the GIb-European lineage and shares high sequence homology with BCoV strains detected in Europe and Israel. In addition, the similarity between the human coronaviruses (4408 and L07748) raises questions about the zoonotic potential of the strains detected in this study.
7.A deep learning approach to permanent tooth germ detection on pediatric panoramic radiographs
Emine KAYA ; Huseyin Gurkan GUNEC ; Kader Cesur AYDIN ; Elif Seyda URKMEZ ; Recep DURANAY ; Hasan Fehmi ATES
Imaging Science in Dentistry 2022;52(3):275-281
Purpose:
The aim of this study was to assess the performance of a deep learning system for permanent tooth germ detection on pediatric panoramic radiographs.
Materials and Methods:
In total, 4518 anonymized panoramic radiographs of children between 5 and 13 years of age were collected. YOLOv4, a convolutional neural network (CNN)-based object detection model, was used to automatically detect permanent tooth germs. Panoramic images of children processed in LabelImg were trained and tested in the YOLOv4 algorithm. True-positive, false-positive, and false-negative rates were calculated. A confusion matrix was used to evaluate the performance of the model.
Results:
The YOLOv4 model, which detected permanent tooth germs on pediatric panoramic radiographs, provided an average precision value of 94.16% and an F1 value of 0.90, indicating a high level of significance. The average YOLOv4 inference time was 90 ms.
Conclusion
The detection of permanent tooth germs on pediatric panoramic X-rays using a deep learning-based approach may facilitate the early diagnosis of tooth deficiency or supernumerary teeth and help dental practitioners find more accurate treatment options while saving time and effort.
8.Clinical, virological, imaging and pathological findings in a SARS CoV-2antibody positive cat
Kursat OZER ; Aysun YILMAZ ; Mariano CAROSSINO ; Gulay Yuzbasioglu OZTURK ; Ozge Erdogan BAMAC ; Hasan E. TALI ; Egemen MAHZUNLAR ; Utku Y. CIZMECIGIL ; Ozge AYDIN ; Hamid B. TALI ; Semaha G. YILMAZ ; Zihni MUTLU ; Ayse Ilgın KEKEC ; Nuri TURAN ; Aydin GUREL ; Udeni BALASURIYA ; Munir IQBAL ; Juergen A. RICHT ; Huseyin YILMAZ
Journal of Veterinary Science 2022;23(4):e52-
This paper reports a presumptive severe acute respiratory syndrome coronavirus 2 (SARSCoV-2) infection in a cat. A cat with respiratory disease living with three individuals with coronavirus disease 2019 showed bilateral ground-glass opacities in the lung on X-ray and computed tomography. The clinical swabs were negative for SARS-CoV-2 RNA, but the serum was positive for SARS-CoV-2 antibodies. Interstitial pneumonia and prominent type 2 pneumocyte hyperplasia were noted on histopathology. Respiratory tissues were negative for SARS-CoV-2 RNA or antigen, but the cat was positive for feline parvovirus DNA. In conclusion, the respiratory disease and associated pathology in this cat could have been due to exposure to SARS-CoV-2.
9.Three-Dimensional Printing Assisted Preoperative Surgical Planning for Cerebral Arteriovenous Malformation
Inan UZUNOGLU ; Ceren KIZMAZOGLU ; Resit Buğra HUSEMOGLU ; Gokhan GURKAN ; Cansu UZUNOGLU ; Murat ATAR ; Volkan CAKIR ; Hasan Emre AYDIN ; Murat SAYIN ; Nurullah YUCEER
Journal of Korean Neurosurgical Society 2021;64(6):882-890
Objective:
: The aim of this study to investigate the benefits of patient-based 3-dimensional (3D) cerebral arteriovenous malformation (AVM) models for preoperative surgical planning and education.
Methods:
: Fifteen patients were operated on for AVMs between 2015 and 2019 with patient-based 3D models. Ten patients’ preoperative cranial angiogram screenings were evaluated preoperatively or perioperatively via patient-based 3D models. Two patients needed emergent surgical intervention; their models were solely designed based on their AVMs and used during the operation. However, the other patients who underwent elective surgery had the modeling starting from the skull base. These models were used both preoperatively and perioperatively. The benefits of patients arising from treatment with these models were evaluated via patient files and radiological data.
Results:
: Fifteen patients (10 males and five females) between 16 and 66 years underwent surgery. The mean age of the patients was 40.0±14.72. The most frequent symptom patients observed were headaches. Four patients had intracranial bleeding; the symptom of admission was a loss of consciousness. Two patients (13.3%) belonged to Spetzler-Martin (SM) grade I, four (26.7%) belonged to SM grade II, eight (53.3%) belonged to SM grade III, and one (6.7%) belonged to SM grade IV. The mean operation duration was 3.44±0.47 hours. Three patients (20%) developed transient neurologic deficits postoperatively, whereas three other patients died (20%).
Conclusion
: Several technological innovations have emerged in recent years to reduce undesired outcomes and support the surgical team. For example, 3D models have been employed in various surgical procedures in the last decade. The routine usage of patient-based 3D models will not only support better surgical planning and practice, but it will also be useful in educating assistants and explaining the situation to the patient as well.
10.Synthesis of New Boron Derived Compounds; Anticancer, Antioxidant and Antimicrobial Effect in Vitro Glioblastoma Tumor Model
Meliha KOLDEMIR-GÜNDÜZ ; Hasan Emre AYDIN ; Derya BERIKTEN ; Güllü KAYMAK ; Dursun Ali KÖSE ; Ali ARSLANTAŞ
Journal of Korean Neurosurgical Society 2021;64(6):864-872
Objective:
: The aim of our study is to investigate the cytotoxic, antioxidant, and antimicrobial effects of newly synthesized boron compounds in U87MG glioblastoma cell treatment.
Methods:
: We synthesized boron glycine monoester (BGM) and boron glycine diester (BGD) structures containing boron atoms and determined their cytotoxic activities on glioblastoma by the MTT method. The IC50 value was calculated with GraphPad Prism 5.0 program. The IC50 values were administered 48 hours on U87MG glioblastoma cell. Catalase (CAT), acid phosphatase (ACP) and alkaline phosphatase (ALP) enzyme activity, malondialdehyde (MDA), total glutathione (GSH), and total protein levels were detected using spectrophotometric methods. We determined the antimicrobial activities of BGM and BGD with the disc diffusion method.
Results:
: After 48 hours of BGM and BGD application to U87MG glioblastoma cells, we found the IC50 value as 6.6 mM and 26 mM, respectively. CAT and ACP enzyme activities were decreased in BGM and BGD groups. MDA which is a metabolite of lipid peroxidation was increased in both boron compounds groups. GSH level was reduced especially in BGD group. BGM and BGD have been found to be antimicrobial effects.
Conclusion
: Boron compounds, especially the BGM, can provide a new therapeutic approach for the treatment of glioblastoma with their anticancer, antioxidant, and antimicrobial effects.

Result Analysis
Print
Save
E-mail