Radiology Case Reports最新文献_第7页

Polysplenia syndrome with semi-annular pancreas, midgut malrotation and interrupted inferior vena cava: A rare adult case report 多脾综合征伴半环状胰腺、中肠旋转不良及下腔静脉中断：一例罕见的成人病例报告

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-15 DOI: 10.1016/j.radcr.2025.12.033

Saber Abdellah Bassel MD, Mohamed Abdellaoui MD, Meriem Edderai MD, Rachida Saouab MD, Hassan Ennouali MD, Jamal El Fenni MD, Ouijdane Zamani MD

{"title":"Polysplenia syndrome with semi-annular pancreas, midgut malrotation and interrupted inferior vena cava: A rare adult case report","authors":"Saber Abdellah Bassel MD, Mohamed Abdellaoui MD, Meriem Edderai MD, Rachida Saouab MD, Hassan Ennouali MD, Jamal El Fenni MD, Ouijdane Zamani MD","doi":"10.1016/j.radcr.2025.12.033","DOIUrl":"10.1016/j.radcr.2025.12.033","url":null,"abstract":"<div><div>Polysplenia syndrome is a rare congenital anomaly within the heterotaxy spectrum. It is typically diagnosed in childhood due to associated cardiac malformations, whereas detection in adults without cardiovascular involvement is uncommon. We report a 50-year-old woman presenting with recurrent abdominal pain and vomiting. Contrast-enhanced CT demonstrated multiple splenic nodules consistent with polysplenia, a semi-annular pancreas partially encircling the duodenum, midgut malrotation, and absence of the intrahepatic segment of the inferior vena cava (IVC) with azygos/hemiazygos continuation. This constellation of anomalies is unusual in adults and clinically significant. Pancreatic and intestinal malformations may predispose to abdominal symptoms, while vascular variants such as interrupted IVC have important implications for surgical and interventional procedures. CT plays a pivotal role in characterising these abnormalities and guiding safe management. Adult presentation of polysplenia syndrome without cardiac involvement is rare. Awareness of associated gastrointestinal and vascular anomalies is crucial to avoid misdiagnosis and intraoperative complications.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1456-1460"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981673","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}

引用次数: 0

A case of telangiectatic osteosarcoma arising from the frontal bone 起源于额骨的毛细血管扩张性骨肉瘤1例

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.radcr.2025.12.010

Akihiko Hayakawa MD , Yukari Wakabayashi MD, PhD , Masanori Ishida MD, PhD , Elly Arizono MD , Maki Tanigawa MD, PhD , Toshitaka Nagao MD, PhD , Jun Nishida MD, PhD , Kazuhiro Saito MD, PhD

{"title":"A case of telangiectatic osteosarcoma arising from the frontal bone","authors":"Akihiko Hayakawa MD , Yukari Wakabayashi MD, PhD , Masanori Ishida MD, PhD , Elly Arizono MD , Maki Tanigawa MD, PhD , Toshitaka Nagao MD, PhD , Jun Nishida MD, PhD , Kazuhiro Saito MD, PhD","doi":"10.1016/j.radcr.2025.12.010","DOIUrl":"10.1016/j.radcr.2025.12.010","url":null,"abstract":"<div><div>Osteosarcoma of the calvarium is extremely rare, specifically of the telangiectatic subtype, which has few reported cases. Herein, we report a case of telangiectatic osteosarcoma occurring in the frontal bone of a 33-year-old man without notable family or medical history. The patient presented with a painless mass in the frontal region, and computed tomography (CT) imaging and magnetic resonance imaging (MRI) revealed a tumor destructively involving the inner and outer tables of the skull. On T1- and T2-weighted magnetic resonance imaging (MRI) images, the tumor exhibited an isointense signal similar to brain parenchyma with multiple hemorrhagic cavities internally. Furthermore, the solid component of the tumor enhanced intensely on enhanced T1-weighted image; moreover, biopsy revealed giant cells. Thus, based on imaging and biopsy findings, a preoperative diagnosis of aneurysmal bone cyst was initially suspected. However, pathological examination of the entire tumor after resection revealed atypical mitosis. Results of immunohistochemical tests revealed no H3G34W mutation, and molecular genetic analyses revealed no USP6 gene rearrangement, leading to a final diagnosis of telangiectatic osteosarcoma.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1422-1428"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981677","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}

引用次数: 0

Hemipelvis malrotation deformity leading to instability: The need for careful preoperative radiographic evaluation in total hip arthroplasty 半骨盆旋转不良畸形导致不稳定：全髋关节置换术术前需要仔细的x线评估

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-15 DOI: 10.1016/j.radcr.2025.12.045

Ioannis S. Vasios MD, Konstantinos G. Makiev MD, Paraskevas Georgoulas MD, Antigoni Gkoudina MD, Efthymios Iliopoulos MD, PhD, Konstantinos Tilkeridis MD, PhD

{"title":"Hemipelvis malrotation deformity leading to instability: The need for careful preoperative radiographic evaluation in total hip arthroplasty","authors":"Ioannis S. Vasios MD, Konstantinos G. Makiev MD, Paraskevas Georgoulas MD, Antigoni Gkoudina MD, Efthymios Iliopoulos MD, PhD, Konstantinos Tilkeridis MD, PhD","doi":"10.1016/j.radcr.2025.12.045","DOIUrl":"10.1016/j.radcr.2025.12.045","url":null,"abstract":"<div><div>Postoperative instability remains one of the main causes of early revision after total hip arthroplasty (THA), often occurring within the first 5 years. While factors such as implant design, surgical technique, and spinopelvic alignment have been widely studied, hemipelvis malrotation—a subtle, often unrecognized unilateral pelvic deformity—has received limited attention. This condition can lead to apparent implant malposition despite adherence to standard surgical protocols. A review of current literature suggests that hemipelvis malrotation may significantly influence postoperative hip stability, yet it is frequently missed on standard anteroposterior (AP) pelvic radiographs. A clinical case is presented in which a patient experienced recurrent anterior dislocation after primary THA, even though the acetabular and femoral components appeared well positioned on routine imaging. Further evaluation with advanced imaging revealed a pronounced unilateral hemipelvis malrotation that had altered the true functional orientation of the acetabulum. Revision surgery incorporating correction of this underlying deformity successfully restored joint stability and resolved the patient’s symptoms. This case highlights the limitations of traditional 2-dimensional imaging and underscores the need for a more comprehensive, multiplanar, and dynamic preoperative assessment. Recognizing hemipelvis malrotation as a distinct contributor to THA instability may improve surgical planning and reduce the risk of dislocation and early revision. Collaboration between orthopedic surgeons and radiologists is essential to identify subtle pelvic asymmetries that can compromise component alignment and long-term functional outcomes.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1437-1443"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981678","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}

引用次数: 0

A rare renal neoplasm: Case report of mucinous tubular and spindle cell carcinoma 罕见肾肿瘤：粘液管状及梭形细胞癌1例

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-02-06 DOI: 10.1016/j.radcr.2026.01.023

Salma El Aouadi MD, Soukaina Allioui MD, Soukaina Bahha MD, Ouiam Taibi MD, Fatima Zahra Laamrani PhD, Youssef Omor PhD, Rachida Latib PhD, Sanae Amalik PhD

引用次数: 0

Ultrasound-guided guidewire maneuver to resolve peritoneal drainage catheter obstruction in an infant: A case report 超声引导导丝术治疗婴儿腹膜引流管梗阻1例。

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-31 DOI: 10.1016/j.radcr.2026.01.027

Riu Homma MD , Watanabe Toshihiko MD , Toru Futami MD , Bin Yamaoka MD , Keiichi Motoyama MD

{"title":"Ultrasound-guided guidewire maneuver to resolve peritoneal drainage catheter obstruction in an infant: A case report","authors":"Riu Homma MD , Watanabe Toshihiko MD , Toru Futami MD , Bin Yamaoka MD , Keiichi Motoyama MD","doi":"10.1016/j.radcr.2026.01.027","DOIUrl":"10.1016/j.radcr.2026.01.027","url":null,"abstract":"<div><div>Peritoneal drainage failure is a rare but important complication in pediatric patients, and identifying its underlying cause is crucial for safe and timely management. We report a 7-month-old female infant with trisomy 13 and tetralogy of Fallot who developed respiratory failure secondary to ascites and underwent peritoneal drainage under ultrasound guidance. When drainage subsequently failed, ultrasound revealed a membranous soft-tissue structure—suspected omentum—protruding through a catheter side hole. Conventional maneuvers, including saline flushing and positional changes, were ineffective. Under real-time ultrasound visualization, a guidewire was gently advanced, restoring the membrane to its original position and re-establishing drainage. The catheter was safely removed later the same day without complications. This case illustrates the value of ultrasound for real-time diagnosis and management of catheter obstruction and suggests that a guidewire-based approach may serve as a practical and safe option when standard techniques fail.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1650-1653"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146167747","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}

引用次数: 0

Risk factors and imaging features of a rudimentary horn pregnancy: A case report and literature review 早期角妊娠的危险因素和影像学特征：1例报告和文献复习

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1016/j.radcr.2026.01.013

Robert E. Jones MD , Zade Akras BS , Robin B. Levenson MD , Fátima Reyes MD, FACOG , Caryn R. Dutton MD, MS

{"title":"Risk factors and imaging features of a rudimentary horn pregnancy: A case report and literature review","authors":"Robert E. Jones MD , Zade Akras BS , Robin B. Levenson MD , Fátima Reyes MD, FACOG , Caryn R. Dutton MD, MS","doi":"10.1016/j.radcr.2026.01.013","DOIUrl":"10.1016/j.radcr.2026.01.013","url":null,"abstract":"<div><div>A rudimentary horn is a type of congenital uterine anomaly associated with a unicornuate uterus. Rudimentary horn pregnancies (RHPs) are extremely rare and the majority of cases result in second trimester rupture necessitating emergent laparotomy with associated high maternal morbidity and delivery of a previable fetus. We report the case of a 33-year-old G5P0131 female who presented at 15 weeks and 4 days gestational age with pelvic and back pain and imaging favoring an abdominal pregnancy. The patient underwent an exploratory laparotomy with left salpingectomy and excision of an unruptured extrauterine pregnancy that was confirmed to be an RHP on pathologic examination. Postsurgery review of the imaging demonstrated several features consistent with the diagnosis of an RHP that were not initially identified. Furthermore, the patient’s medical and surgical histories were notable for several risk factors associated with congenital uterine anomalies that should have heightened the clinical suspicion for an RHP. This case emphasizes how increased familiarity with the risk factors and imaging findings associated with rudimentary horns and RHPs may lead to an earlier and more accurate diagnosis, more timely and appropriate treatment, and ultimately a reduction in maternal and fetal morbidity and mortality.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1602-1607"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079154","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}

引用次数: 0

Lesser omental capillary-lymphatic-venous malformation with massive intralesional hemorrhage: A case report 小网膜毛细血管-淋巴-静脉畸形伴病灶内大出血1例

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.radcr.2025.12.058

Haruka Ogata MD, Shun Goto MD, Daiya Morita MD, Sako Tomogane MD, Masumi Nakahashi MD, PhD, Masaya Miyazaki MD, PhD

{"title":"Lesser omental capillary-lymphatic-venous malformation with massive intralesional hemorrhage: A case report","authors":"Haruka Ogata MD, Shun Goto MD, Daiya Morita MD, Sako Tomogane MD, Masumi Nakahashi MD, PhD, Masaya Miyazaki MD, PhD","doi":"10.1016/j.radcr.2025.12.058","DOIUrl":"10.1016/j.radcr.2025.12.058","url":null,"abstract":"<div><div>Lesser omental cystic capillary-lymphatic-venous malformation (CLVM) is a rare benign intra-abdominal vascular anomaly. We report the case of a 50-year-old female patient who was admitted to our hospital with epigastric pain. She was previously diagnosed with abdominal cystic lymphangioma. At the time of her visit to our hospital, abdominal computed tomography (CT) revealed massive intralesional hemorrhage. During tumor resection, the cystic lesion was found to originate from the lesser omentum. Histopathologically, the patient was diagnosed with CLVM instead of lymphangioma, based on the 2018 International Society for the Study of Vascular Anomalies (ISSVA) classification. Hemorrhage within the cyst may alter lesion imaging features, thereby complicating preoperative diagnosis. Preoperatively, we were unable to identify imaging features of vascular components other than the lymphatic component. In our case, the hemorrhage may have been caused by vascular structures pathologically identified within the lesion. Therefore, we speculated that previously reported cases of abdominal lymphangiomas complicated by hemorrhage may harbor combined vascular malformations had they been pathologically reclassified according to the 2018 ISSVA classification system. We report a case of lesser omentum CLVM that subsequently developed into intralesional hemorrhage, with a review of the relevant literature.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1577-1581"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079280","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}

引用次数: 0

Enhanced myometrial vascularity on MRI in a patient with retained products of conception 妊娠产物保留患者的MRI增强子宫肌血管

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.radcr.2025.12.041

Derek A. Tsang BS, Erin N. Gomez MD

{"title":"Enhanced myometrial vascularity on MRI in a patient with retained products of conception","authors":"Derek A. Tsang BS, Erin N. Gomez MD","doi":"10.1016/j.radcr.2025.12.041","DOIUrl":"10.1016/j.radcr.2025.12.041","url":null,"abstract":"<div><div>Secondary postpartum hemorrhage (PPH), sometimes referred to as secondary postpregnancy hemorrhage, is a potentially serious complication that arises between 24 hours and 12 weeks after delivery. Retained products of conception (RPOC) and subinvolution of the placental site are common causes, but uterine vascular anomalies such as arteriovenous malformations (AVMs) can present with similar clinical imaging findings, creating diagnostic uncertainty. Enhanced myometrial vascularity (EMV) has recently been recognized as a postpartum vascular finding that may mimic AVMs on ultrasound and magnetic resonance imaging (MRI). Because true congenital AVMs are rare, most AVM-like lesions encountered in the postpartum period likely represent acquired vascular changes or EMV, making accurate diagnosis vital for appropriate and fertility-preserving management. We present the case of a 34-year-old gravida 5 para 3 patient who developed persistent heavy vaginal bleeding following early pregnancy loss. Serial ultrasounds demonstrated a thickened, hypervascular endometrium with extension into the myometrium, raising concern for either RPOC or uterine AVM. Despite declining serum β-hCG levels, her symptoms persisted. MRI performed nearly two months after pregnancy loss revealed intrauterine enhancing material consistent with RPOC and associated EMV, favoring a diagnosis of EMV over AVM. The patient subsequently underwent successful hysteroscopic dilation and curettage, with pathology confirming RPOC and resolution of symptoms. This case highlights the diagnostic challenge and importance of differentiating EMV from uterine AVM in the evaluation of secondary PPH to avoid unnecessary invasive treatments such as embolization or hysterectomy.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1401-1407"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145947941","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}

引用次数: 0

Spontaneous resolution of cervical calcified ligamentum flavum in a 72-year-old woman with cervical myelopathy 72岁宫颈骨髓病女性的宫颈钙化黄韧带自发消退

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.radcr.2025.12.024

Mohamed Sarraj MD , Felix Diehn MD , Charles Mechas MD , Karen Truitt DO , Meera M. Dhodapkar MD, MHS , Paul Scholten MD , Ahmad Nassr MD

引用次数: 0

Psoas metastasis mimicking abscess in untreated muscle-invasive bladder cancer: A diagnostic pitfall 未经治疗的肌肉浸润性膀胱癌的腰肌转移模拟脓肿：一个诊断缺陷

Radiology Case Reports Pub Date : 2026-04-01 Epub Date: 2026-01-24 DOI: 10.1016/j.radcr.2025.12.049

Maachi Youssef MD, Bensaleh Nasseredine MD, Zaki Amine MD, Slaoui Amine MD, Karmouni Tariq MD, Koutani Abdellatif MD, Elkhader Khalid MD

{"title":"Psoas metastasis mimicking abscess in untreated muscle-invasive bladder cancer: A diagnostic pitfall","authors":"Maachi Youssef MD, Bensaleh Nasseredine MD, Zaki Amine MD, Slaoui Amine MD, Karmouni Tariq MD, Koutani Abdellatif MD, Elkhader Khalid MD","doi":"10.1016/j.radcr.2025.12.049","DOIUrl":"10.1016/j.radcr.2025.12.049","url":null,"abstract":"<div><div>Psoas involvement represents a rare clinical entity presenting significant diagnostic challenges due to nonspecific symptomatology. We report a 62-year-old male patient with muscle-invasive bladder carcinoma treated by transurethral resection of bladder tumor (TURBT) who declined radical cystectomy. Six months following initial surgical intervention, he presented with back pain, fever, and progressive clinical deterioration. Laboratory investigations demonstrated marked systemic inflammation. Computed tomography revealed recurrent bladder tumor with a 12-cm left psoas collection, initially interpreted as representing an abscess. Despite percutaneous drainage and broad-spectrum antibiotic therapy, clinical improvement remained limited. Magnetic resonance imaging demonstrated an infiltrative lesion within the psoas musculature, separated from the bladder by a preserved fat plane, consistent with skeletal muscle metastasis rather than direct tumor invasion or infectious abscess. This case illustrates the diagnostic difficulty in distinguishing abscess from malignant infiltration in advanced bladder cancer and emphasizes the critical role of magnetic resonance imaging when conventional treatment modalities fail to achieve expected clinical response.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"21 4","pages":"Pages 1554-1558"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024651","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}

引用次数: 0