Swiss Journal of Radiology and Nuclear Medicine
type: channel
description: Swiss Journal of Radiology and Nuclear Medicine (SJORANM) is an open access, peer-reviewed international journal that accepts for review any original scientific work in the fields of radiology, nuclear medicine, applied sciences and interdisciplinary work with focus on diagnostic and therapy relevant imaging methods. It is totally free of charge for readers and authors. Dear Readers and Authors of the Swiss Journal of Radiology and Nuclear Medicine, we wish you a very happy day and peaceful times Read More About the Journal
publisher: SJORANM GmbH, Rosenweg 3, CH-6340 Baar
language: en
publication name: Swiss Journal of Radiology and Nuclear Medicine
issn: 2813-7221
copyright: This license requires that reusers give credit to the creator. It allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, even for commercial purposes.
items: The Unusual Pattern of Violation of Weigert Meyer Rule with Ureterocele in an Adult
items: From Fibroscan to 2D Shear Wave Elastography
items: A Comparison of diagnostic performance of CT with rectal contrast vs. CT with rectal and intravenous contrast for the diagnosis of acute appendicitis
items: The Pediatric Ovarian Torsion at Two Years of Age
items: A Case of Radiation-induced Differentiated Thyroid Cancer
items: The New Year’s Greeting 2026

The Unusual Pattern of Violation of Weigert Meyer Rule with Ureterocele in an Adult
type: item
description: Section: Case reports Keywords: CAKUT, Ureterocele, Weigert-Meyer Rule, Stephen's ectopic pathway Background: Duplication of renal system is one of the most common congenital anomalies of the urinary tract. The relationship between the drainage of the two moieties into the urinary bladder is described by the Weigert-Meyer rule which states that the moiety opening into the bladder medially and caudally drains the upper pole while the moiety opening laterally and cranially drains the lower pole of the kidney. Case presentation: We present a case of violation of the Weigert Meyer rule in a 48 year old male who presented primarily in adulthood. On imaging studies, the patient was discovered to have a duplex left renal collecting system with the both moieties draining ectopically into the the bladder and with the lower pole moiety draining caudally and anteriory to the upper pole moiety. We present this case as it describes a rarer variant of a common anomaly as well as for its importance to radiologists and surgeons. Conclusions: Radiologists and urologists should bear in mind the possibility of these violations when dealing with patients with a duplex system. Furthermore, patients with congenital urinary tract anomalies may present primarily in adulthood and have an uneventful childhood. ---------------------------------------------------------------------- Background Congenital abnormalities of the kidney and urinary tract (CAKUT) are the most common anomalies detected in neonates, with an incidence of nearly 3 to 6 per 1000 live births (1). Some of the common anomalies include horseshoe kidneys, duplicated systems, ureteropelvic junction obstruction, etc. The genetic basis for most of these anomalies involves the same molecular pathway which plays a key role in the development of the renal system (2). Duplication of the renal system, albeit a relatively rare occurrence, is one of the most common renal anomalies, seen in about 0.2-2% of the population. It is more comm…
subject: Case reports
  topic: section
subject: CAKUT
  topic: keywords
subject: Ureterocele
  topic: keywords
subject: Weigert-Meyer Rule
  topic: keywords
subject: Stephen's ectopic pathway
  topic: keywords
creator: Rohin Sharma
creator: Radhika Batra
creator: Gaurav S. Pradhan
creator: Ebinesh Arulnathan
rights: Copyright (c) 2025 Rohin Sharma, Radhika Batra, Gaurav S. Pradhan, Ebinesh Arulnathan https://creativecommons.org/licenses/by/4.0
date: 2025-12-29
publication date: 2025-12-29
starting page: 1
ending page: 6
doi: 10.59667/sjoranm.v26i1.14

From Fibroscan to 2D Shear Wave Elastography
type: item
description: Section: Research Articles Keywords: Liver fibrosis, Fibroscan, Shear wave elastography, CLD Abstract Background: Proper assessment of liver fibrosis is essential for treating chronic liver disease (CLD). While Fibroscan is commonly used, it often fails in patients with obesity or ascites. Two-dimensional shear wave elastography (2D SWE) adds real-time ultrasound imaging, which may improve its success and reliability in these challenging cases. Objective: We aimed to compare how well Fibroscan and 2D SWE detect and stage liver fibrosis in CLD patients, using liver biopsy results as the gold standard. Methods: In this prospective, hospital based study at Government Medical College Srinagar, we enrolled 155 CLD patients undergoing liver biopsies from October 2022 to November 2025. Independent blinded operators performed Fibroscan with M-probe and 2D SWE on each patient. Liver stiffness was measured in kilopascals (kPa) and compared it to METAVIR fibrosis scores . Dignostic accuracy, agreement rates, and technical failure rates were calculated. Results: Out of 155 enrolled patients, 136 patients completed all evaluations (Fibroscan , SWE & Liver biopsy). Fibroscan failed in 18 of 155 patients (11.6%) mainly due to obesity or ascites, while 2D SWE failed in 8 of 155 patients (5.16%). Notably, SWE achieved valid results in 11 out of 18 patients (61%) in whom fibroscan failed. The two methods agreed 86.8% of the time supported by weighted kappa of 0.893(95% CI : 0.82-0.92) indicating almost perfect agreement as per Landis-Koch criteria : k>0.81 and confirmed by Pearson’s chi-square test ( X2 = 371.22 , p <0.0001). Diagnostic performance metrics revealed high accuracy for both modalities across fibrosis stage F0-F4 with Efficacy exceeding 93% for all stages, though SWE tended to slightly overcall F2–F3 stages yet overall performance was similar. Procedure times were alike (Fibroscan: 5.3 ± 2.2 min; SWE: 5.4 ± 2.5 min). Conclusion: 2D SWE matches Fibroscan’s accuracy but wi…
subject: Research Articles
  topic: section
subject: Liver fibrosis
  topic: keywords
subject: Fibroscan
  topic: keywords
subject: Shear wave elastography
  topic: keywords
subject: CLD
  topic: keywords
creator: Akib Arfee
creator: Omair Ashraf Shah
creator: Asif Iqball
creator: Afshana Bashir
creator: Aaqib Manzoor
rights: Copyright (c) 2025 Dr Akib Arfee, Dr. Omair Ashraf Shah, Dr Asif Iqball , Dr Afshana Bashir, Dr Aaqib Manzoor https://creativecommons.org/licenses/by/4.0
date: 2025-12-29
publication date: 2025-12-29
starting page: 7
ending page: 16
doi: 10.59667/sjoranm.v26i1.16

A Comparison of diagnostic performance of CT with rectal contrast vs. CT with rectal and intravenous contrast for the diagnosis of acute appendicitis
type: item
description: Section: Research Articles Keywords: Acute appendicitis, Imaging, Radiation, iodine contrast, diagnostic performance Aim: Computed tomography (CT) is an essential investigation for the evaluation of suspected acute appendicitis (AA) owing to its high accuracy and the ability to provide an alternate diagnosis, however, there is still debate on the optimal CT technique with protocols varying between institutions. The present study aimed to compare the diagnostic accuracy of CT with rectal contrast (CT-RC) with that of CT with both rectal and intravenous contrast (CT-IVRC) in the diagnosis of AA. Material and methods: CTs of 135 patients were analysed by 2 radiologists retrospectively. Clinical outcome was used as the final diagnosis. The diagnostic accuracy of each CT technique was calculated and compared with each other. Results: There was strong agreement inter- and intra-observer agreement for the diagnosis of AA (kappa= 0.76, 0.87, 0.89 and 0.91 for CT-RC and CT-IVRC, respectively). The sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of CT-RC and CT-IVRC for the diagnosis of AA were not statistically different from each other (p-value>0.05 for all comparisons). The accuracy of two CT protocols in diagnosing AA ranged from 82% to 88%. The area under the curves (AUC) for diagnosing AA on CT-RC and CT-IVRC for two observers were 0.87. 0.9, 0.89 and 0.91 respectively. Conclusions: CT-RC proved to be as accurate as CT-IVRC in the diagnosis of AA. CT with rectal contrast alone could be performed in suspected cases of AA particularly in patients with contraindications to intravenous contrast administration. -------------------------------------------------------------------- Introduction Acute appendicitis (AA) constitutes one of the im-portant causes of abdominal pain and is a frequent reason for emergency department (ED) visits. AA is the most common cause of hospitalization in young patients presenting with acute …
subject: Research Articles
  topic: section
subject: Acute appendicitis
  topic: keywords
subject: Imaging
  topic: keywords
subject: Radiation
  topic: keywords
subject: iodine contrast
  topic: keywords
subject: diagnostic performance
  topic: keywords
creator: Ahmet Aslan
creator: Arshed Hussain Parry
creator: Taher AlAli
creator: Banoo Alsaleh
creator: Rami Moraya Sharahili
creator: Abdulaziz Almutawea
creator: Husham Bakry
creator: Isam Juma
rights: Copyright (c) 2025 Ahmet Aslan, Arshed Hussain Parry, Muhammed Taher Alali, Banoo Loai Alsaleh, Rami Moraya Sharahili, Abdulaziz Almutawea, Husham Bakry, Isam Mazin Juma https://creativecommons.org/licenses/by/4.0
date: 2025-12-29
publication date: 2025-12-29
starting page: 17
ending page: 30
doi: 10.59667/sjoranm.v26i1.18

The Pediatric Ovarian Torsion at Two Years of Age
type: item
description: Section: Case reports Keywords: Ovarian torsion, pediatric, young girl, normal ovary Introduction Pediatric ovarian torsion is a relatively uncommon cause of acute abdominal pain. It carries significant risk of morbidity and possible mortality if not diagnosed and treated immediately. Case presentation In this report, we present a case of pediatric ovarian torsion in a two-year-old girl that was suspected on clinical assessment, diagnosed by ultrasound, and confirmed by exploratory laparoscopy. The right ovary was necrosed and oophorectomy was performed. This case report underlines the importance of a timely diagnosis to salvage the ovary. Conclusion This case report discusses the diagnosis of pediatric ovarian torsion including risk factors, symptoms, imaging modalities, and surgical diagnostics to improve diagnosis and shorten time to treatment. In addition, this case supports the use of laparoscopy for diagnosis of ovarian torsion if indicated by clinical suspicion and supplemental imaging studies. -------------------------------------------------------------------------- Introduction Ovarian torsion (OT) is a surgical emergency that can lead to impaired or lost fertility if the diagnosis and intervention are delayed. Complete or partial ovarian torsion occurs due to the twisting of the vascular pedicle of the ovary. The twisting of vascular pedicle causes obstruction of lymphatic and venous flow followed by obstructed arterial flow which if unrelieved ensues in ovarian infarction (1). Pediatric ovarian torsion is an uncommon cause of acute abdominal pain in children. In adults, a large sized uterus provides support to the ovaries, which generally remain stably tucked, thus, reducing the chances of spontaneous torsion. Therefore, torsion in adults usually occurs when a cyst or mass develops within the ovary. Moreover, it is estimated to account for 3% of all cases of acute abdominal pain in adult women. On the other hand, pediatric OT is an uncommon cause of acut…
subject: Case reports
  topic: section
subject: Ovarian torsion
  topic: keywords
subject: pediatric
  topic: keywords
subject: young girl
  topic: keywords
subject: normal ovary
  topic: keywords
creator: Mujahed Abdul Sattar Raheem
creator: Arshed Hussain Parry
creator: Hassan Ismail Hussam
creator: Hamed Ibrahim Wael
creator: Martin Corbally
rights: Copyright (c) 2025 Mujahed Abdul Sattar Raheem, Arshed Hussain Parry, Hussam Hassan Ismail, Wael Hamed Ibrahim, Martin Corbally https://creativecommons.org/licenses/by/4.0
date: 2025-12-29
publication date: 2025-12-29
starting page: 31
ending page: 35
doi: 10.59667/sjoranm.v26i1.20

A Case of Radiation-induced Differentiated Thyroid Cancer
type: item
description: Section: Case reports Keywords: Ionizing radiation, differentiated thyroid cancer, radioiodine therapy The association between differentiated thyroid cancer and exposure to ionizing radiation has been well known since the radioactive fallout of the 20th century. Post-radiotherapy monitoring should focus on three main objectives: assessment of the oncological response, evaluation of acute or late toxicity due to ionizing radiation, and screening for a second cancer. Surveillance is recommended following cervical, upper mediastinal, craniospinal, or total body radiotherapy. The risk of a second cancer is maximal for irradiation received before the age of five and decreases with age. It is no longer significant if irradiation occurs after the age of 15 to 20. A 16-year-old female patient with stunted growth and a history of a posterior fossa medulloblastoma diagnosed and operated on at age 5, received 55.8 Gy irradiation to the brain and posterior fossa over 21 sessions (radiation completed in September ,2013). She was declared cured with annual clinical and radiological follow-up. Eleven years later, she presented with a WHO stage 3 thyroid goiter associated with cervical lymphadenopathy. A total thyroidectomy with lymph node dissection confirmed a differentiated thyroid cancer classified as pT1bN1bM1. The patient received three further therapeutic cycles of radioiodine therapy, which successfully sterilized the multiple secondary pulmonary lesions discovered during the scan after the first course of treatment. She has been declared cured based on satisfactory clinical, biological, and morpho-functional criteria and is currently undergoing lifelong follow-up.
subject: Case reports
  topic: section
subject: Ionizing radiation
  topic: keywords
subject: differentiated thyroid cancer
  topic: keywords
subject: radioiodine therapy
  topic: keywords
creator: Arnauld Muhoza
creator: Esso-Mada Kpekpeou
creator: Maha Chaoui
creator: Aicha El Boukhrissi
creator: Nadia Ismaili Alaoui
rights: Copyright (c) 2025 Arnauld Muhoza, Esso-Mada Kpekpeou, Maha Chaoui, Aicha El Boukhrissi, Nadia Ismaili Alaoui https://creativecommons.org/licenses/by/4.0
date: 2025-12-29
publication date: 2025-12-29
starting page: 36
ending page: 40
doi: 10.59667/sjoranm.v26i1.22

The New Year’s Greeting 2026
type: item
description: Section: Specials Keywords: New Year’s Greeting 2026 *]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" dir="auto" tabindex="-1" data-turn-id="51fe8d2e-5591-4be2-b831-d0ced9019e17" data-testid="conversation-turn-2" data-scroll-anchor="true" data-turn="assistant"> New Year’s Greeting 2026 (Editor-in-Chief) As we welcome the New Year 2026, I would like to extend my warmest greetings to all our readers, authors, reviewers, and colleagues around the world. Video_Greetings_2026 Over the past year, The Swiss Journal of Radiology and Nuclear Medicine has continued to grow as a platform for thoughtful scientific exchange. The articles published throughout 2025 reflected the impressive breadth and depth of our discipline — from advances in diagnostic imaging and interventional techniques to developments in nuclear medicine and translational research. Each contribution enriched our shared understanding and underscored the value of collaboration across institutions, countries, and subspecialties. We are deeply grateful to everyone who has supported the journal — not only through research and authorship, but also through peer review, editorial work, and dedicated readership. Your engagement makes this journal a living forum for academic curiosity, critical thinking, and clinical progress. A new year always brings with it the hope for renewal. In that spirit, let us continue to foster scientific rigor, open dialogue, and respectful exchange. And beyond our professional world, we join the global community in wishing for peace, understanding, and wellbeing for all people — wherever they may live. On behalf of the editorial team, We wish you a healthy, fulfilling, and inspiring 2026. With warm regards, Gerd Nöldge & Frank Mosler Editors Swiss Journal of Radiology and Nuclear Medicine
subject: Specials
  topic: section
subject: New Year’s Greeting 2026
  topic: keywords
creator: Frank Mosler
creator: Gerd Nöldge
rights: Copyright (c) 2025 Frank Mosler, Prof. Dr. Gerd Nöldge https://creativecommons.org/licenses/by/4.0
date: 2025-12-29
publication date: 2025-12-29
starting page: 41
ending page: 41
doi: 10.59667/sjoranm.v26i1.24