Publications by authors named "John Papailiou"

Introduction: Splenic hamartoma is a primary benign tumor of the spleen, which is often found incidentally. Splenic hamartomas are very rare, with approximately 150 cases documented in the literature to date. They represent benign vascular proliferation.

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The present study describes a case of a painful supraclavicular soft-tissue metastasis of a skin melanoma invading the brachial plexus in a 38-year-old male. The patient was treated twice with radiofrequency ablation (RFA) under computed tomography (CT) guidance, which caused tumoral necrosis. The patient was originally referred with a 7-cm metastasis in the right supraclavicular fossa, which caused intractable pain and a degree of numbness.

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Introduction: Post-traumatic pulmonary pseudocyst is an uncommon cavitary lesion of the lung and develops after blunt chest trauma and even more rarely following penetrating injuries. It is generally seen in young adults presenting with cough, chest pain, hemoptysis, and dyspnea. Post-traumatic pulmonary pseudocyst should be included in the differential diagnosis of cavitary pulmonary lesions.

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Background: Autoimmune pancreatitis (AIP) is a chronic inflammatory condition characterized by IgG4-positive plasma cells. Recent evidence suggests that it is a systemic disease affecting various organs. Tubulointerstitial nephritis has been reported in association with AIP.

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Infected necrotizing pancreatitis is the most severe form of acute pancreatitis and is related with high rates of morbidity and mortality. The close cooperation and communication, working as a team, among interventional radiologists surgeons and gastroenterologists improves the successful treatment considerably. Therapeutic modalities such as percutaneous CT-guided catheter drainage can be helpful to save lives, changing dramatically the clinical aspect of the patient.

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This article has been withdrawn at the request of the Editor in Chief. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.

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Background: Several techniques for liver resection have been developed. We compared radiofrequency-assisted (RF) and clamp-crush (CC) liver resection (LR) in terms of blood loss, operating time and short-term outcomes in primary and metastatic tumour resection.

Methods: From 2002 to 2007, 196 consecutive patients with primary or metastatic hepatic tumours underwent RF-LR (n= 109; group 1) or CC-LR (n= 87; group 2) in our unit.

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Objective: The objective of our study was to compare theoretic estimations of the dose to the patient's skin during CT-guided interventional procedures with measurements performed using radiation therapy verification films.

Materials And Methods: In each of the 12 interventions studied, a Kodak EDR2 film was positioned under the patient's anatomic area of concern. After processing, each film was scanned with a medical-grade scanner to produce a digital image from which the gray-scale profiles were obtained using the appropriate software.

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Objective: The aim of the study was to compare Acute Physiology and Chronic Health Evaluation II score and C-reactive protein as a clinical index and computed tomography-based severity index (CTSI) in predicting the course of acute pancreatitis.

Methods: One hundred forty-eight patients with acute pancreatitis were enrolled in the study during a 2-year period. All data concerning etiology, Atlanta classification, CT findings, Acute Physiology and Chronic Health Evaluation score, C-reactive protein levels, stay in the intensive care unit, length of hospital stay, treatment, complications, and deaths were analyzed with Mann-Whitney U, Wilcoxon, Pearson, and Spearman statistical tests.

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Objective: To correlate cross-sectional imaging findings with histological results in patients with histopathologically proven lymphoplasmacytic sclerosing pancreatitis (LSP) after surgery.

Methods: Four cases of resectable pancreatic lesions that were proven to represent LSP are presented in our study. All patients were thought to harbor malignancy.

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Objective: The purpose of this study was to determine patient effective dose (E) and peak absorbed dose to the skin of the patient from various CT-guided interventional procedures performed without CT fluoroscopy assistance.

Materials And Methods: In total, 49 interventions were retrospectively studied: 14 biopsies, 14 radiofrequency ablations, 14 abscess drainages, and seven nephrostomies. CT images were acquired from the department's PACS system and reviewed to record the scan parameters of each slice.

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Splenic abscess is a rare entity normally associated with underlying diseases. We report a case of splenic abscess with large gas formation in a non-diabetic and non-immunosuppressed patient after surgery for colon perforation. The most frequent cause of splenic abscess is septic embolism arising from bacterial endocarditis.

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Hydatid disease is a rare entity that mostly affects the liver and lung, but almost any organ, forming cysts. Although diagnosis is confirmed by serology and imaging studies, a high index of suspicion is required based on the epidemiological background of the patient. However, rare locations of the cysts remain a diagnostic and therapeutic dilemma.

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Purpose: To measure radiation doses for computed tomography (CT) of the head, chest, and abdomen and compare them with the diagnostic reference levels, as part of the International Atomic Energy Agency Research coordination project.

Materials And Methods: The local ethics committees of all participating institutions approved the study protocol. Written informed consent was obtained from all patients.

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