Radiology Case Reports最新文献

{"title":"Indirect sciatic nerve transection from gunshot induced comminuted femoral fracture","authors":"Laura E. Garton MD ,&nbsp;Logan P. Haug MD ,&nbsp;Keith T. Aziz MD ,&nbsp;Rupert O. Stanborough MD ,&nbsp;Daniel E. Wessell MD, PhD","doi":"10.1016/j.radcr.2026.01.056","DOIUrl":"10.1016/j.radcr.2026.01.056","url":null,"abstract":"<div><div>Sciatic nerve transection is a severe peripheral nerve injury associated with profound motor and sensory deficits, often resulting in long-term disability if not promptly addressed. We report a case of persistent motor loss after a ballistic injury in a 31-year-old female, initially attributed to the concussive effect of the ballistic and later found to be the consequence of a bony fragment transection. One year after the initial trauma, radiographs at our institution demonstrated a displaced, posteriorly directed sharp bony fragment at the level of the distal femoral diaphysis. MRI revealed features consistent with a traumatic neuroma in discontinuity with fusiform enlargement of the terminal stump proximal to the bone fragment and an intraneural cyst of the stump distal to the fragment. This case underscores the importance of dedicated nerve imaging in temporal proximity to injury as early identification and surgical intervention is critical to maximize functional outcomes in complex ballistic nerve injuries.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 5","pages":"Pages 1846-1850"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neuroradiologic appearance of intracranial vascular lesions associated with multiple lymphangioendotheliomatosis with thrombocytopenia","authors":"Lamson D. Tran ,&nbsp;Oswaldo A. Guevara Tirado MD ,&nbsp;Vivienne Pham ,&nbsp;Afshan Z. Ara ,&nbsp;Stephen F. Kralik MD","doi":"10.1016/j.radcr.2026.01.050","DOIUrl":"10.1016/j.radcr.2026.01.050","url":null,"abstract":"<div><div>Multifocal lymphangioendotheliomatosis with thrombocytopenia (MLT) is a rare congenital vascular disorder characterized by a multitude of lesions involving the skin and gastrointestinal tract with associated thrombocytopenia. Due to the rarity of this disorder, the incidence of intracranial involvement is unknown and only 6 cases have been described in the literature to date. Here we present a case of MLT with a series of neuroimaging studies across several years of the patient’s life showcasing the natural history of the intracranial vascular lesions associated with MLT. The features presented in this case report highlight the importance of CNS imaging in patients with MLT in both emergent and nonemergent settings.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 5","pages":"Pages 1861-1866"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146193259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute hemoperitoneum due to a ruptured hemorrhagic ovarian cyst in a 19-year-old female","authors":"Fadwa Jaheddine,&nbsp;Zaynab Iraqi Houssaini,&nbsp;Chaymaa Chemachi,&nbsp;Omar El Aoufir,&nbsp;Laila Jroundi,&nbsp;Ola Messaoud","doi":"10.1016/j.radcr.2025.06.060","DOIUrl":"10.1016/j.radcr.2025.06.060","url":null,"abstract":"<div><div>Ruptured hemorrhagic ovarian cyst is a potentially life-threatening condition that can lead to significant hemoperitoneum and hypovolemic shock. Imaging plays a crucial role in rapid diagnosis and guiding management. We report the case of a 19-year-old female who presented to the emergency department with acute pain in the lower left quadrant. Ultrasonography and computed tomography revealed a left hemorrhagic cyst with associated moderate hemoperitoneum. The patient underwent laparoscopic cyst wall removal and evacuation of hemoperitoneum, with subsequent uneventful recovery. This case highlights the importance of early imaging and the sentinel clot sign in guiding timely surgical intervention.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 5","pages":"Pages 1773-1776"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A rare case of plexiform neurofibroma","authors":"Eppy Buchori AK MD,&nbsp;Ilham Ansari Marzuki Lubis MD,&nbsp;Radinda Amalia Nur Hayati MD","doi":"10.1016/j.radcr.2025.12.021","DOIUrl":"10.1016/j.radcr.2025.12.021","url":null,"abstract":"<div><div>Plexiform neurofibroma is a rare benign peripheral nerve sheath tumor that occurs almost exclusively in patients with neurofibromatosis type I (NF1). This report presents a 10-year-old patient with multiple enlarging masses on the left and posterior neck for 4 years, accompanied by pain and restricted neck movement. Radiographic evaluation revealed a soft tissue mass without bony abnormalities, while Magnetic Resonance Imaging (MRI) demonstrated multiple confluent, ill-defined, infiltrative lesions involving bilateral cervical regions and extending into the anterior mediastinum. The lesions showed hypointense signals on T1-weighted and hyperintense target sign appearances on T2-weighted images, with encasement of neurovascular structures and spinal cord compression. Histopathological findings confirmed the diagnosis of plexiform neurofibroma without evidence of malignancy. This case emphasizes the diagnostic value of MRI in delineating lesion extent and neurogenic origin, as well as the importance of histopathology in confirming the benign nature of the tumor and excluding malignant transformation.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1474-1477"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cholesterol granuloma forming the solid components within an endometrioma showing intense FDG uptake, mimicking malignancy: A case report","authors":"Go Nakai MD, PhD ,&nbsp;Hiroki Matsutani MD, PhD ,&nbsp;Takashi Yamada MD, PhD ,&nbsp;Tomohito Tanaka MD, PhD ,&nbsp;Kazuhiro Yamamoto MD, PhD ,&nbsp;Keigo Osuga MD, PhD","doi":"10.1016/j.radcr.2025.12.055","DOIUrl":"10.1016/j.radcr.2025.12.055","url":null,"abstract":"<div><div>A mural solid component (SC) within an endometrioma (ovarian endometriotic cyst), demonstrating internal vascularity or increased fluorodeoxyglucose (FDG) uptake on positron emission tomography (PET), is considered a characteristic finding suggestive of malignant transformation. We report a rare case of an endometrioma containing a solid component with intense FDG uptake that was pathologically diagnosed as a cholesterol granuloma. A 68-year-old woman was incidentally found to have bilateral ovarian cysts on transvaginal ultrasonography. MRI revealed the left ovary contained a cyst measuring 46 × 36 × 30 mm, showing high signal intensity (SI) on T1-weighted images (T1WIs), which was not suppressed on fat-suppressed T1WIs, and low SI on T2-weighted images (T2WIs) suggesting an endometrioma. Inside this cyst, SC was noted, showing low SI on both T1WIs and T2WIs and partial high signal on diffusion-weighted images. FDG-PET/CT demonstrated intense FDG uptake in the SC (standardized uptake value max = 13.0), with no evidence of distant metastasis. Based on these findings, a malignant tumor arising from left ovarian endometrioma was suspected. However, postoperative histopathological examination revealed that the SC within the background of the endometrioma consisted of granulomatous tissue with hemosiderin deposition surrounding cholesterol crystals, leading to a diagnosis of an endometrioma with a cholesterol granuloma. Characteristic SIs of SC on MRI may be caused by hemosiderin deposition inside it and the resulting susceptibility artifacts. These findings may aid in distinguishing cholesterol granuloma from malignant tumors, although further case accumulation is needed.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1495-1499"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The large bilateral gemination of permanent maxillary central incisors: A rare developmental dental anomaly case report","authors":"Bita Heydarzadeh DDS,&nbsp;Saba Khorram DDS,&nbsp;Fereshteh Hayatimotlagh DDS","doi":"10.1016/j.radcr.2026.01.015","DOIUrl":"10.1016/j.radcr.2026.01.015","url":null,"abstract":"<div><div>Bilateral gemination of permanent maxillary central incisors is a rare developmental dental anomaly, with a prevalence of approximately 0.04% in permanent dentition. This case report describes a 12-year-old boy presenting with enlarged central incisors, featuring incisal notches and causing palatal displacement of adjacent lateral incisors due to space encroachment. Cone-beam computed tomography (CBCT) revealed 2 distinct root canals with divergent apices in the right incisor and a single bean-shaped canal in the left, with no periapical pathology. These findings highlight CBCT’s critical role in mapping complex pulpal anatomy for accurate diagnosis. The condition predisposes teeth to plaque retention, increasing risks of caries and gingival inflammation. Management requires a multidisciplinary approach, including conservative enameloplasty, restorative procedures, or orthodontic intervention to address aesthetic and functional challenges. Further research is needed to refine treatment protocols and explore the etiology of such anomalies.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1712-1715"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case of adenoid cystic carcinoma of the larynx: Diagnostic challenges, surgical management, and long-term surveillance","authors":"Azeddine Lachkar MD ,&nbsp;Saad Bouchlarhem MD ,&nbsp;Achraf Amine Sbai MD ,&nbsp;Drissia Benfadil MD","doi":"10.1016/j.radcr.2026.01.021","DOIUrl":"10.1016/j.radcr.2026.01.021","url":null,"abstract":"<div><div>Adenoid cystic carcinoma of the larynx is an uncommon malignant neoplasm, accounting for less than 1% of all laryngeal cancers. It arises from minor salivary glands, predominantly located in the subglottic region. ACC is characterized by slow but aggressive growth, with a notable propensity for perineural invasion and distant hematogenous dissemination, particularly to the lungs, which occurs in approximately 35%-50% of cases. Clinical presentation depends on tumor localization and may include dyspnea, dysphonia, dysphagia, and otalgia. Diagnosis is based on clinical and endoscopic examination, supplemented by imaging modalities such as MRI and CT scans, and confirmed by histopathological evaluation, which typically reveals a cribriform growth pattern. Immunohistochemical analysis frequently shows strong positivity for c-kit (CD117) and CK7, with negative expression for thyroid-specific markers (TTF-1, thyroglobulin), excluding a thyroid origin. The standard therapeutic approach involves wide surgical excision, most often via total laryngectomy, with selective neck dissection performed in cases with clinical or radiological evidence of lymph node involvement, although nodal metastases remain uncommon. Postoperative radiotherapy is generally indicated due to the tumor’s relative radioresistance and its tendency for perineural spread. Chemotherapy plays a limited role, reserved for advanced or metastatic disease. Given the high risk of late recurrences and distant metastases, long-term follow-up is essential, despite a reported 5-year overall survival rate of approximately 70%. We report the case of a 58-year-old female patient with no history of tobacco or alcohol use, but with a 25-year occupational exposure to irritant vapors in the chemical industry. She presented with progressively worsening dysphonia over approximately 10 months, followed by the onset of laryngeal dyspnea. A comprehensive clinical evaluation, supported by laboratory testing and imaging studies, led to the diagnosis of adenoid cystic carcinoma of the larynx. This exceedingly rare tumor may present with nonspecific symptoms and mimic other head and neck disorders, particularly thyroid-related pathologies. Therefore, a high index of clinical suspicion is essential to avoid diagnostic delays. Early diagnosis and prompt management are critical, and treatment should be based on a multidisciplinary and individualized approach to optimize oncological outcomes while preserving laryngeal function and the patient's quality of life.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1750-1755"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Origin of the right vertebral artery from the right common carotid artery in the setting of an aberrant right subclavian artery: Case and retrospective review to determine frequency","authors":"David Becker-Weidman MD,&nbsp;Arthur Parsee MD,&nbsp;Abraham Ahmed MD","doi":"10.1016/j.radcr.2026.01.002","DOIUrl":"10.1016/j.radcr.2026.01.002","url":null,"abstract":"<div><div>Anomalies of the vertebral arteries are rare. The second most common vertebral artery anomaly is the right vertebral artery arising from the right common carotid artery in the setting of an aberrant right subclavian artery (ARSA). We present a case of this rare anomaly and determine the relative frequency with which the right vertebral artery arises from the right subclavian artery vs the right common carotid artery in the setting of an ARSA by retrospectively reviewing over 500 patients with an ARSA and a contrast-enhanced CT. We found that in the setting of an ARSA the right vertebral artery arises from the right subclavian artery in 84% of patients and from the right common carotid artery in 16% of patients.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1756-1761"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Right ventricular outflow tract aneurysm as an incidental finding in a patient with acute pericarditis: A case report","authors":"Seyed Reza Tabibian MD ,&nbsp;Faezeh Tabesh MD ,&nbsp;Farshad Riahi MD","doi":"10.1016/j.radcr.2025.12.048","DOIUrl":"10.1016/j.radcr.2025.12.048","url":null,"abstract":"<div><div>Right ventricular outflow tract (RVOT) aneurysms are rare, often linked to congenital defects or surgery, and their incidental detection during acute pericarditis is unreported. This case highlights the diagnostic role of imaging in atypical presentations. A 32-year-old male presented with a 2-week history of sharp, pleuritic chest pain worsened by inspiration and coughing, partially relieved by nonsteroidal anti-inflammatory drugs (NSAIDs). He had a 10 pack-year smoking history but no prior cardiac disease. Physical examination was unremarkable. Laboratory tests showed mildly elevated C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). Electrocardiography (ECG) was normal, but transthoracic echocardiography revealed a left ventricular ejection fraction (LVEF) of 40%, right ventricular enlargement, and moderate pericardial effusion. Multidetector computed tomography (MDCT) with pulmonary thromboembolism (PTE) protocol excluded PTE but incidentally identified RVOT aneurysm. Conservative management with aspirin and colchicine led to symptom resolution; at 6-month follow-up, the patient was asymptomatic with stable imaging. This incidental finding underscores MDCT’s utility in detecting coexisting structural anomalies in patients presenting with pericarditis. Conservative management is appropriate for asymptomatic cases without obstruction.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1622-1625"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unilateral common carotid artery agenesis: Case report of a rare incidental finding","authors":"Aparna Medarametla BS,&nbsp;Abel Tsehay Abebe MD,&nbsp;Mohamed Tantawi MD,&nbsp;Alaha Al Taweel MD","doi":"10.1016/j.radcr.2026.01.011","DOIUrl":"10.1016/j.radcr.2026.01.011","url":null,"abstract":"<div><div>This case report follows a 60-year-old female with a history of hypertension, diabetes, and Factor V Leiden mutation with multiple prior deep vein thromboses (DVT) in the lower extremities who presented with right eye vision loss. Computed tomography angiogram (CTA) of the neck showed a 4 vessel arch anatomy with an absence of the left common carotid artery and separate origins of the left internal and external carotid arteries directly arising from the arch, which was an incidental finding. This case contributes to the sparse existing literature and highlights the extremely rare occurrence of complete carotid artery agenesis and its clinical implications.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1598-1601"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}