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Competing Interests: The authors declare no conflict of interest.

Colon cancer is a major public health issue, affecting a growing number of individuals worldwide. Proper and early diagnosis of colon cancer is the necessary first step toward effective treatment and/or prevention of future disease relapse. Artificial intelligence and its subtypes, deep learning in particular, tend nowadays to have an expanding role in all fields of medicine, and diagnosing colon cancer is no exception. This report aims to summarize the entire application spectrum of deep learning in all diagnostic tests regarding colon cancer, from endoscopy and histologic examination to medical imaging and screening serologic tests., Competing Interests: The authors declare no conflict of interest., (Copyright © 2023 Termedia.)

Introduction/objective: Thyroid carcinoma (TC) accounts for one percent of all carcinomas, with a higher incidence in women. Although there is controversy on the selection of the best surgical treatment for differentiated TC, total thyroidectomy (TT) and subtotal thyroidectomy (STT) are still the two main surgical procedures. The aim of the present study was to evaluate the early complication rates of thyroidectomy in patients undergoing thyroid surgery at a tertiary hospital in Greece., Methods: A total of 306 patients with differentiated TC who underwent thyroid surgery were enrolled retrospectively. Patients were divided into two groups. Group A included 214 patients undergoing TT, whereas 92 patients (group B) underwent STT. Demographic details of patients, operating time, and early complications (hypoparathyroidism, hematoma, infection, temporary recurrent laryngeal nerve palsy) were noted., Results: There was no significant difference in the sex, age, and mean operating time between the two groups (P=0.47, P=0.55, and P=0.09, respectively). Either hematoma or wound infection occurred in 3 (1.4%) or 4 (1.87%) of the patients undergoing TT compared to two (2.17%) or three (3.26%) of the patients undergoing STT (P=0.63 and P=0.46, respectively). In addition, either hypoparathyroidism or temporary recurrent laryngeal nerve palsy was observed in 34 (15.89%) or 13 (6.07%) of the patients undergoing TT compared with eleven (11.96%) or nine (9.78%) of the patients undergoing STT (P=0.37 and P=0.25, respectively)., Conclusions: The current study demonstrates that total thyroidectomy can be safely performed in patients with differentiated thyroid carcinoma without increasing the risk of early complications., (Celsius.)

Aim To present the experience from collective data regarding patients with retroperitoneal sarcomas that have been operated in and followed up by the University General Hospital of Patras in Rion, Greece, between 2009 and 2020. Methods A retrospective analysis of adult patients treated at our hospital with a diagnosis of primary retroperitoneal sarcoma who underwent tumour resection. Results Data from 29 patients were analysed. The mean age at diagnosis was 56.1 years; 55.2% of patients were male (n=16). Liposarcomas (on histology) were identified in 19 (65.5%) patients, leiomyosarcoma six (20.7%), and other histologic subtypes in four (13.8%) patients. Tumours >5cm were presented in 27 (93.1%) patients. Negative margins were attained in 13 (44.8%) of all patients who underwent surgical resection. Five (17.2%) patients received neoadjuvant radiation, four (13.8%) postoperative radiation, and three (10.3%) patients received both chemotherapy and radiation prior to surgery with the rest of the patients being treated with surgical excision alone. A 3-year follow-up was successful in 21 (72.4%) patients; five (23.8%) patients died. In total, 16 (55.2%) patients were found to have a local recurrence, with no significant difference in patients' age, gender, tumour size, histology, negative surgical margin (Ro) resection, neoadjuvant chemotherapy, or radiation therapy. There was a significant difference in the 3-year survival rate between patients having positive or negative surgical margins (p=0.027). Conclusion The higher 3-year survival rate in patients with retroperitoneal sarcomas when achieving Ro resection warrant further investigation with a larger sample size across different institutions., (Copyright© by the Medical Assotiation of Zenica-Doboj Canton.)

Aim COVID-19 pandemic caused by SARS-CoV-2 is spreading throughout the world affecting both healthy individuals and people with underlying immune-deficiencies. People living with human immunodeficiency virus (HIV) consist a group multiply affected by this universal crisis. Methods Literature search aiming to identify relevant publications referring to the consequences of the COVID-19 pandemic in HIV infected population. Results A body of literature is rapidly growing in regard to epidemiological data, the interaction between HIV and SARS-CoV-2, and clinical outcome in people living with HIV. Intensive research is warranted to identify any interactions of the co-existence of the two viruses in the immune system of HIV infected patients as common pathophysiology and molecular aspects are recognized. Human relations are diminished as a result of the social measures, and detailed recording of the consequences in this population is needed. Conclusion Further research could shed light on the common underlying molecular mechanisms of both conditions in an attempt to discover treatment regimens for SARS-CoV-2 infection., (Copyright© by the Medical Assotiation of Zenica-Doboj Canton.)

Protein tyrosine phosphatase receptor- ζ 1 (PTPRZ1) is a transmembrane tyrosine phosphatase receptor highly expressed in embryonic stem cells. In the present work, gene expression analyses of Ptprz1 -/- and Ptprz1 +/+ mice endothelial cells and hearts pointed to an unidentified role of PTPRZ1 in heart development through the regulation of heart-specific transcription factor genes. Echocardiography analysis in mice identified that both systolic and diastolic functions are affected in Ptprz1 -/- compared with Ptprz1 +/+ hearts, based on a dilated left ventricular (LV) cavity, decreased ejection fraction and fraction shortening, and increased angiogenesis in Ptprz1 -/- hearts, with no signs of cardiac hypertrophy. A zebrafish ptprz1 -/- knockout was also generated and exhibited misregulated expression of developmental cardiac markers, bradycardia, and defective heart morphogenesis characterized by enlarged ventricles and defected contractility. A selective PTPRZ1 tyrosine phosphatase inhibitor affected zebrafish heart development and function in a way like what is observed in the ptprz1 -/- zebrafish. The same inhibitor had no effect in the function of the adult zebrafish heart, suggesting that PTPRZ1 is not important for the adult heart function, in line with data from the human cell atlas showing very low to negligible PTPRZ1 expression in the adult human heart. However, in line with the animal models, Ptprz1 was expressed in many different cell types in the human fetal heart, such as valvar, fibroblast-like, cardiomyocytes, and endothelial cells. Collectively, these data suggest that PTPRZ1 regulates cardiac morphogenesis in a way that subsequently affects heart function and warrant further studies for the involvement of PTPRZ1 in idiopathic congenital cardiac pathologies. NEW & NOTEWORTHY Protein tyrosine phosphatase receptor ζ 1 (PTPRZ1) is expressed in fetal but not adult heart and seems to affect heart development. In both mouse and zebrafish animal models, loss of PTPRZ1 results in dilated left ventricle cavity, decreased ejection fraction, and fraction shortening, with no signs of cardiac hypertrophy. PTPRZ1 also seems to be involved in atrioventricular canal specification, outflow tract morphogenesis, and heart angiogenesis. These results suggest that PTPRZ1 plays a role in heart development and support the hypothesis that it may be involved in congenital cardiac pathologies.

Keratoacanthomas (KA) are epithelial tumors that present as rapidly evolving nodules with a central hyperkeratotic plug and occasionally show signs of spontaneous regression. A 21-year-old patient strongly refused the diagnostic biopsy and insisted on a nonsurgical treatment. He was successfully treated with imiquimod 5% cream., Competing Interests: There are no conflicts of interest to declare., (© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.)

Gallstone ileus is a very rare cause of mechanical bowel obstruction with often-delayed presentation and nonspecific symptoms. Aerobilia is found in approximately 50% of patients with gallstone ileus., Competing Interests: There are no conflicts of interest to declare., (© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.)

Background: The respiratory system is the main system affected by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and a great number of infected people need hospitalization. Soluble urokinase plasminogen activator receptor (suPAR) is a biomarker indicative of acute and chronic inflammation. Current literature supports that suPAR has great predictive ability for mortality in patients with coronavirus disease 2019 (COVID-19). The aim of this study was to compare the value of suPAR and other laboratory biomarkers in patients with chest infection and suspected COVID-19., Methods: A total of 41 consecutive patients with chest infection were enrolled in the study and were assigned into two groups according to the real-time polymerase chain reaction (PCR) result for SARS-CoV-2. The two groups had no significant difference in baseline data (age, sex), arterial oxygen partial pressure (PO 2 )/fraction of inspired oxygen (FiO 2 ) ratio and mortality., Results: Among patients with chest infection who required hospitalization, suPAR was significantly higher on admission in those with COVID-19 when compared to patients with non-COVID-19. suPAR had a great prognostic ability for in-hospital mortality in the COVID-19 subgroup., Conclusions: A single measurement of suPAR on admission can provide prognostic information for patients with suspected COVID-19 pneumonia. In the subgroup of patients with positive real-time PCR result for SARS-CoV2, suPAR was significantly higher and had an excellent prognostic value for the in-hospital mortality., Competing Interests: The authors have no conflict of interest to declare., (Copyright 2021, Velissaris et al.)

This review summarizes the published literature referring to the use and validity of the biomarker soluble urokinase plasminogen activator receptor (suPAR) when used for the assessment of patients with cardiac diseases. It is measured by enzyme-linked immunosorbent assay (ELISA) in plasma samples. In cardiology a cut-off value range of 3.5 - 4.5 ng/mL has been commonly utilized. Different cut-off values may be applied based on the measuring kit used, the patient population and the clinical setting. A PubMed/Medline search was conducted aiming to identify all publications relevant to the use of suPAR in patients with cardiac diseases. A total of 39 studies were included in this review. suPAR as a marker of inflammation has been used more extensively in recent years, alone or in combination with other biomarkers of inflammation and cardiac pathology in the assessment of patients with acute and chronic cardiac diseases. suPAR is closely related to the pathophysiology of cardiac disease, and a number of publications encourages its use as a valuable biomarker in the assessment of patients presenting to the cardiology service. It may be most valuable in the risk assessment of patients with acute coronary syndromes and congestive heart failure, as suPAR elevation may be an independent predictor of mortality in these conditions. In conclusion, among several biomarkers used for clinical entities with underlying inflammatory pathophysiology including cardiac diseases, suPAR is a novel attractive index for the prognostic risk stratification of cardiac patients. More research is warranted to confirm its diagnostic and prognostic validity, alone or combined with other cardiac and inflammatory biomarkers., Competing Interests: The authors declare no conflict of interest., (Copyright 2021, Velissaris et al.)