Elleana A Paradise, Justin A Schmidgall, Prachi Dubey, David S Baskin, Bin S Teh, Ivo W Tremont-Lukats, Steve H Fung
{"title":"A Case of Physiologic Enhancement of Scarpa's Ganglia Mimicking Bilateral Vestibular Schwannomas in a Patient With Atypical Meningioma With NF2 Mutation.","authors":"Elleana A Paradise, Justin A Schmidgall, Prachi Dubey, David S Baskin, Bin S Teh, Ivo W Tremont-Lukats, Steve H Fung","doi":"10.1155/crra/1815413","DOIUrl":"https://doi.org/10.1155/crra/1815413","url":null,"abstract":"<p><p>We followed a 36-year-old man with an atypical meningioma with somatic NF2 mutation and invasion into the bone, temporalis muscle, and pterygopalatine fossa, treated with surgical resection and adjuvant radiation therapy. His medical history included medulloblastoma treated with resection and adjuvant radiation therapy and a WHO Grade 1 meningioma treated with gross total resection. A brain MRI during routine follow-up revealed small enhancing foci in both internal auditory canals (IACs), which prompted concern for bilateral vestibular schwannomas and suspect NF2-related schwannomatosis (NF2-SWN). However, the lesions were symmetric, fundal, and nonnodular on high-resolution constructive interference in steady-state (CISS) imaging, with smooth vestibular nerve contours, long-term interval stability, and a lack of clinical symptoms, favoring physiologic enhancement of the vestibular ganglia (Scarpa's ganglia) rather than vestibular schwannomas. Recognition of these distinguishing features also helped avoid associating the IAC findings with the known NF2 mutation, which was determined to be somatic. While germline NF2 mutations (NF2-SWN) often lead to meningiomas and vestibular schwannomas, somatic NF2 mutations are common in sporadic meningiomas and should not suggest NF2-SWN. This case highlights the need to correlate small enhancing IAC foci with morphology on CISS MRI, symmetry, longitudinal stability, and NF2 pathology to avoid misdiagnosis of enhancing Scarpa's ganglia as vestibular schwannomas, as misdiagnosis can lead to increased patient anxiety and unnecessary follow-ups.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"1815413"},"PeriodicalIF":0.0,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13138210/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147843613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Prashant Kumar Gupta, Evan Botterman, Sara Morgan, Aarti Gupta
{"title":"Isolated Lymphatic Injury Mimicking Bladder Rupture in a Young Male Following Blunt Trauma: A Case Report.","authors":"Prashant Kumar Gupta, Evan Botterman, Sara Morgan, Aarti Gupta","doi":"10.1155/crra/4340538","DOIUrl":"https://doi.org/10.1155/crra/4340538","url":null,"abstract":"<p><p>Blunt abdominal trauma can be difficult to evaluate, especially when an unusual injury mimics a far more common one. We present a case of a 17-year-old boy who was struck in the abdomen by bicycle handlebars. His initial imaging suggested a possible bladder rupture because of the presence of both intraperitoneal and extraperitoneal fluid. A retrograde CT cystogram, however, ruled out any bladder injury. Because of his worsening condition, he underwent an urgent laparoscopy followed by exploratory laparotomy, which revealed a large volume of milky-white free fluid, suggestive of chyle, within the abdomen. Laboratory analysis of the aspirated fluid showed a high triglyceride level of 1,079 mg/dL, confirming the chylous nature of the fluid. There was an enlarged and engorged cisterna chyli in the retroperitoneum suggesting lymphatic injury. Treatment involved applying fibrin sealant in the region of the cisterna chyli, placing a peritoneal drain, and keeping a diet based on medium-chain triglycerides. The patient recovered well without any recurrence of chylous ascites. This case highlights the need to consider rare lymphatic injuries causing posttraumatic chylous ascites when evaluating blunt abdominal trauma with diffuse abdominal fluid collection, particularly when common injuries have been ruled out but the patient's clinical status continues to worsen.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"4340538"},"PeriodicalIF":0.0,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13113415/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A Rumhumha, R Minty, A Lupuwana, A Ranchod, W Nkosi, M Ramantsi
{"title":"Caught Between the Brain and a Hard Place: A Case of a Cervicomedullary AVM.","authors":"A Rumhumha, R Minty, A Lupuwana, A Ranchod, W Nkosi, M Ramantsi","doi":"10.1155/crra/2571688","DOIUrl":"https://doi.org/10.1155/crra/2571688","url":null,"abstract":"<p><p>Posterior fossa arteriovenous malformations (AVMs) are uncommon lesions that carry significant risk due to their proximity to the brainstem. We present the case of an 18-year-old female who suffered a sudden severe headache and was found to have a subarachnoid haemorrhage caused by a cervicomedullary junction AVM of the juvenile Type IIa subtype. Multimodality imaging with noncontrast CT, MRI and digital subtraction angiography (DSA) confirmed a posterior fossa AVM centred at the cervicomedullary junction. The patient was managed conservatively with strict blood pressure control and analgesia; Gamma Knife radiosurgery was considered but deferred given the diffuse nidus and the lesion's location adjacent to the medulla. This case illustrates the diagnostic and therapeutic challenges of posterior fossa AVMs in young patients and highlights the crucial role of multimodality imaging in guiding management decisions.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"2571688"},"PeriodicalIF":0.0,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13084252/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147723964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Identification and Removal of a Fractured Portacath.","authors":"Azri Johari, David Ding, Deepak Jain","doi":"10.1155/crra/6411769","DOIUrl":"https://doi.org/10.1155/crra/6411769","url":null,"abstract":"<p><p>A 31-year-old woman with metastatic breast cancer was referred for chest radiography after portacath malfunction. Imaging identified an incomplete catheter fracture at the internal jugular vein that subsequently progressed to complete fracture during removal. Lodged in the superior vena cava, the fractured fragment was retrieved using a loop snare via femoral vein access under fluoroscopic guidance. Postretrieval imaging confirmed no residual fragments, and the patient had an uneventful recovery. Though rare, portacath fractures have associated life-threatening complications such as vessel perforation, embolisation, cardiac tamponade and death. This case underscores the importance of early identification of portacath fractures and demonstrates interventional radiology techniques as a safe and precise method for their removal.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"6411769"},"PeriodicalIF":0.0,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13087506/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147723968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transient Aortic Vasospasm Case Report-The \"Triple Adrenal\" Sign.","authors":"Adam Katz, Alexa DeMaio, Peter Frech, Dell P Dunn","doi":"10.1155/crra/8910069","DOIUrl":"https://doi.org/10.1155/crra/8910069","url":null,"abstract":"<p><p>Arterial vasospasm is a clinically significant entity that can lead to significant morbidity and, in some cases, even mortality. Although vasospasm most commonly occurs in coronary and cerebral arteries, it can occur in any vessel, including the aorta. This case report describes a favorable clinical outcome following prompt recognition and management and introduces a memorable imaging sign-the \"triple adrenal\"-to aid identification. To reduce adverse outcomes, radiologists should be aware of aortic vasospasm and the agents and conditions that precipitate it. Given its rarity, aortic vasospasm may be challenging to diagnose. As with any ischemic event, reducing time to reperfusion is critical in preventing irreparable damage.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"8910069"},"PeriodicalIF":0.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13075477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147692687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Congenital Toxoplasmosis With Atypical Neuroimaging: Hydrocephalus and Bilateral Chorioretinitis Without Intracranial Calcifications.","authors":"Saubhagya Dhakal, Pradeep Raj Regmi, Prajwal Dhakal, Binaya Adhikari, Shashi Shekhar Shingh, Basanta Sharma Paudel","doi":"10.1155/crra/3021918","DOIUrl":"https://doi.org/10.1155/crra/3021918","url":null,"abstract":"<p><p>We report a rare case of congenital toxoplasmosis in a 2-month-old female infant from rural Nepal, born to a primigravida mother without prenatal care. The infant presented with progressive lethargy, feeding difficulties, intermittent fever, and progressive macrocephaly. Neuroimaging revealed obstructive hydrocephalus and multiple cerebral ring-enhancing lesions without intracranial calcifications. Ophthalmologic examination demonstrated bilateral chorioretinitis. Serologic testing confirmed congenital toxoplasmosis. Despite initiation of standard therapy with pyrimethamine, sulfadiazine, and folinic acid, the infant experienced clinical deterioration prior to planned neurosurgical intervention. This case highlights the clinical and radiologic variability of congenital toxoplasmosis, the diagnostic challenges in resource-limited settings, and the importance of recognizing atypical imaging patterns to guide timely management.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"3021918"},"PeriodicalIF":0.0,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13051784/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147634538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
George Hanna, Panagiotis Gavathas, Jerome Hanna, Mina Mousa
{"title":"Subacute Combined Degeneration Secondary to Nitrous Oxide Toxicity.","authors":"George Hanna, Panagiotis Gavathas, Jerome Hanna, Mina Mousa","doi":"10.1155/crra/9512509","DOIUrl":"https://doi.org/10.1155/crra/9512509","url":null,"abstract":"<p><p>Subacute combined degeneration (SCD) of the spinal cord is a neurological condition caused by vitamin B12 deficiency and is most associated with cases of malabsorption, nitrous oxide exposure, or pernicious anemia. The lateral corticospinal tracts and dorsal columns are classically affected, leading to neurologic symptoms including gait disturbance, sensory deficits, and weakness. We report the case of a 35-year-old man who presented with paraesthesia and weakness of the upper and lower extremities bilaterally, along with urinary incontinence. Examination revealed a long segment of signal abnormality and enhancement involving the cervical and thoracic spinal cord, predominantly along the bilateral dorsal column. Upon further investigation, the patient reported a chronic history of recreational nitrous oxide abuse resulting in vitamin B12 deficiency inevitably leading to the development of SCD of the spinal cord.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"9512509"},"PeriodicalIF":0.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12974326/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147436327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unilateral Pulmonary Artery Agenesis in an Adult: A Case Report and Review of Literature.","authors":"Madhuranjan J, Arun Karthick R","doi":"10.1155/crra/1565940","DOIUrl":"https://doi.org/10.1155/crra/1565940","url":null,"abstract":"<p><strong>Background: </strong>Unilateral pulmonary artery agenesis (UPAA) is a rare congenital anomaly that may remain undiagnosed until adulthood, when patients present with exertional dyspnoea, recurrent respiratory infections, hemoptysis, or pulmonary hypertension.</p><p><strong>Case presentation: </strong>A 55-year-old female presented with exertional dyspnoea and hypoxemia. Clinical evaluation and echocardiography revealed pulmonary arterial hypertension, cor pulmonale with preserved left ventricular systolic function.</p><p><strong>Imaging findings: </strong>Chest radiography demonstrated cardiomegaly with prominent but otherwise normal hilar shadows. Computed tomography pulmonary angiography revealed complete absence of the right pulmonary artery, with the right lung supplied by extensive systemic collaterals. Diffuse mosaic attenuation was noted, reflecting chronic hypoperfusion.</p><p><strong>Management: </strong>The patient was managed conservatively with oxygen therapy and pulmonary vasodilator therapy, including ambrisentan and tadalafil, resulting in clinical stabilization.</p><p><strong>Conclusion: </strong>Unilateral pulmonary artery agenesis is a rare but important cause of pulmonary hypertension and cor pulmonale in adults. Computed tomography pulmonary angiography plays a pivotal role in diagnosis by accurately delineating vascular anatomy and collateral circulation, enabling appropriate management and prevention of complications.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"1565940"},"PeriodicalIF":0.0,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12951536/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147349115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ampuriire Nyakubaho, Sematimba Henry, Ssempa Phiona, Ddumba Micheal, Michael G Kawooya
{"title":"Simultaneous Occurrence of Two Renal Artery Variations in a Single Potential Kidney Donor.","authors":"Ampuriire Nyakubaho, Sematimba Henry, Ssempa Phiona, Ddumba Micheal, Michael G Kawooya","doi":"10.1155/crra/1016494","DOIUrl":"10.1155/crra/1016494","url":null,"abstract":"<p><strong>Background: </strong>Renal transplantation success depends on precise preoperative vascular mapping. This case report documents a rare instance of simultaneous dual renal artery variations in a prospective kidney donor.</p><p><strong>Procedure: </strong>A healthy 27-year-old male underwent MDCT renal angiography following standard protocols. The patient fasted for 8 h, received 80 mL of iohexol contrast at 1 mL/kg via a 20-gauge cannula, and was imaged using a 32-slice CT scanner. Scanning was performed from the descending aorta (just above the celiac trunk) to the iliac bifurcation using bolus tracking for optimal arterial enhancement.</p><p><strong>Ct findings: </strong>The CT scan demonstrated complex renal vascular anatomy. The right kidney was supplied by a main renal artery along with two accessory arteries, one originating laterally at L1 and another from the anterior aortic wall at L2. The left kidney exhibited a main renal artery with a single accessory branch arising immediately above its origin.</p><p><strong>Discussion: </strong>The embryological persistence of multiple aortic branches underlies these variations. Recognition of such anomalies is crucial as they may complicate donor nephrectomy through increased risk of intraoperative bleeding, complex vascular reconstructions, and compromised graft perfusion.</p><p><strong>Implications and recommendations: </strong>Routine use of high-resolution MDCT angiography is recommended for comprehensive donor evaluation. Enhanced interdisciplinary collaboration between radiologists and transplant surgeons is essential for tailoring surgical approaches and ensuring optimal outcomes.</p><p><strong>Conclusion: </strong>Detailed preoperative imaging is vital for identifying rare renal vascular anomalies, thereby optimizing surgical planning and promoting donor safety.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"1016494"},"PeriodicalIF":0.0,"publicationDate":"2026-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12811757/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145999258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lymphadenopathy in Concurrent Head and Neck Malignancies.","authors":"Timothy Fitzgerald, Ryan K Rigsby","doi":"10.1155/crra/1544831","DOIUrl":"10.1155/crra/1544831","url":null,"abstract":"<p><p>Second primary malignancies in the head and neck are a major cause of morbidity and mortality and include mucosal epithelial, hematologic, and cutaneous malignancies. Much is known about the imaging features of metastatic cervical lymphadenopathy in a single disease process; however, information on the imaging evaluation of cervical lymph nodes in the setting of multiple concurrent primary cancers is limited. Cancer multiplicity can make imaging evaluation challenging, but accurate interpretation is vital to appropriate workup and treatment. Here, we present four cases of concurrent head and neck malignancies with cervical lymphadenopathy and guidance on how to approach them with attention to lymph node location and morphologic abnormalities.</p>","PeriodicalId":30326,"journal":{"name":"Case Reports in Radiology","volume":"2026 ","pages":"1544831"},"PeriodicalIF":0.0,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12811403/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145999184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}