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Ann Clin Transl Neurol 2020 Jul 2. Epub 2020 Jul 2.

Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou, 510080, China.

Patients with combined phenotypes of Sturge-Weber syndrome and Klippel-Trenaunay syndrome have been reported, though the underlying genetic spectrum in these individuals remains to be elucidated. We reported the patient presenting with Klippel-Trenaunay and Sturge-Weber overlap syndrome in mainland China. Histopathologic study confirmed the hemangioma of vein and capillary. Read More

Respirol Case Rep 2020 Aug 25;8(6):e00613. Epub 2020 Jun 25.

Department of Pulmonary Medicine, Thoracic Center St. Luke's International Hospital Tokyo 104-8560 Japan.

Here, we report a case of haemangioma on middle mediastinum accompanied by unilateral pleural effusion, which was initially suspected to be lung cancer and pleurisy. During annual check-up, chest radiography of a 30-year-old female showed homogeneous opacity in the left lower pulmonary field. Excision was performed, and the mass was pathologically diagnosed as benign mediastinal vascular tumour with exudative pleural effusion. Read More

Arch Soc Esp Oftalmol 2020 Jun 26. Epub 2020 Jun 26.

Departamento de Retina y Vítreo, Fundación Hospital Nuestra Señora de la Luz, IAP, Ciudad de México, México.

A series is presented of 16 cases of retinal capillary haemangioma from consecutive patients at an ophthalmology teaching hospital in Mexico City. There were 7 primary haemangioblastomas, and 9 due to von Hippel-Lindau disease. All cases associated with this disease already had systemic manifestations, such as cerebellar, medullary and renal tumours. Read More

Gen Dent 2020 Jul-Aug;68(4):28-31

The conventional method of managing intraoral soft tissue overgrowth involves surgical excision using a scalpel under local anesthesia. These procedures are often associated with excessive bleeding that leads to complications. Now, minimally invasive methods such as laser excision are available for the management of intraoral soft tissue lesions. Read More

Ophthalmologe 2020 Jun 23. Epub 2020 Jun 23.

Augenzentrum am St. Franziskus-Hospital, Hohenzollernring 74, 48145, Münster, Deutschland.

In a 38-year-old female patient, who had been treated for acute visual impairment and suspected optic neuritis with no organic evidence in the right eye, an exophytically growing juxtapapillary retinal capillary hemangioma was found. The benign tumor is a rare but important differential diagnosis in cases of papilledema and macular exudation. The treatment is difficult; various therapeutic concepts are discussed. Read More

No Shinkei Geka 2020 Jun;48(6):541-546

Department of Neurosurgery, Japanese Red Cross Fukuoka Hospital.

Radiation necrosis with massive hemorrhage is a rare complication of radiotherapy. We report the case of a male patient who had undergone radiotherapy therapy 18 years earlier and presently underwent gamma knife radiosurgery for a metastatic brain tumor in his right occipital lobe. The patient showed aberrant behavior with left homonymous hemianopsia and a gradual deterioration of cognitive function after radiotherapy. Read More

Oncol Lett 2020 Jul 21;20(1):209-214. Epub 2020 Apr 21.

Department of Spine Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.

Spinal epidural angiolipomas (SALs) and spinal intradural extramedullary capillary hemangiomas (SIECHs) are both types of rare benign tumor, and their pathogeneses appear to be associated. The present report is, to the best of our knowledge, the first case of spinal angiolipoma and intradural extramedullary capillary hemangioma occurring at the same spinal level. A 54 year-old male patient experienced two operations within four months due to the occurrence of SAL and one SIECH at the T3 level presenting with sudden paraplegia. Read More

Retin Cases Brief Rep 2020 Jun 10. Epub 2020 Jun 10.

University Hospitals Eye Institute, Case Western Reserve University Cleveland, Ohio.

Purpose: To report a case of von Hippel-Lindau (VHL) syndrome in a monocular patient with progressive vision loss due to Juxtapapillary Capillary Retinal Angioma and epiretinal membrane (ERM).

Patient: We describe a 37-year-old white male patient with von Hippel-Lindau (VHL) syndrome who presented for retinal evaluation. The right eye was blind with NLP vision. Read More

Arch Dis Child Fetal Neonatal Ed 2020 Jun 10. Epub 2020 Jun 10.

Department of Dermatology, Galway University Hospital, Galway, Ireland.

J Oral Maxillofac Pathol 2020 Jan-Apr;24(1):76-80. Epub 2020 May 8.

Department of Oral Pathology and Microbiology, Bareilly International University, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India.

Context: Focal fibrous hyperplasia, peripheral ossifying fibroma, pyogenic granuloma, peripheral giant cell granuloma, giant cell fibroma and focal reactive overgrowth (FROGs) are one of the foremost numerous benign soft-tissue growths in the oral cavity. Chronic irritation or trauma is with identified as the causative aspect. It may develop up to few centimeters in diameter, pedunculated or sessile and may arise on the gingiva or buccal mucosa. Read More

Am J Surg Pathol 2020 Jun 2. Epub 2020 Jun 2.

Department of Pathology, Robert J. Tomsich Pathology & Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH.

Intravascular lobular capillary hemangioma (ILCH), or intravascular pyogenic granuloma, is relatively rare and likely underrecognized. We reviewed all ILCH cases from our institution confirmed pathologically from 2006 to 2019. Immunostains for smooth muscle actin and Wilms tumor 1 were performed on all cases and prior immunohistochemical stains were reviewed. Read More

Pediatr Radiol 2020 Jun 3. Epub 2020 Jun 3.

Department of Radiology, Boston Children's Hospital, 300 Longwood Ave., Boston, MA, 02115, USA.

Splenic masses present a diagnostic challenge to radiologists and clinicians alike, with a relative paucity of data correlating radiologic findings to pathological diagnosis in the pediatric population. To illustrate splenic mass imaging findings and approximate lesion prevalence, we retrospectively reviewed all splenectomies and splenic biopsies for splenic masses at a single academic pediatric hospital over a 10-year period in patients 18 years and younger. A total of 31 splenic masses were analyzed. Read More

Singapore Med J 2020 Mar;61(3):122-128

Department of Pathology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR.

Intramuscular haemangiomas are benign soft tissue tumours that are more frequently seen in children and young adults. As they may be difficult to diagnose clinically, imaging has an important role in the detection, diagnosis and preoperative planning of these lesions. Haemangiomas of the extremities may be classified into capillary, cavernous, venous and mixed types, with or without an arteriovenous shunt, depending on the predominant vascular channels. Read More

Respir Med Case Rep 2020 11;30:101073. Epub 2020 May 11.

Division of Otolaryngology - Head and Neck Surgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.

Background: Lobular capillary hemangiomas (LCH) are acquired benign vascular lesions of the skin and mucous membranes mostly affecting the head and neck region. Involvement of the nasal cavity is extremely rare and can manifest as epistaxis and nasal obstruction.

Case Series: In this case series, we present five cases of intranasal LCH. Read More

Ophthalmol Retina 2020 05;4(5):544

Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal; Faculdade de Medicina, Universidade de Coimbra (FMUC), Coimbra, Portugal; Association for Biomedical Research and Innovation in Light and Imaging (AIBILI), Coimbra, Portugal.

Clin Implant Dent Relat Res 2020 Jun 7;22(3):366-372. Epub 2020 May 7.

Oral Pathology Master Programme, Oral and Maxillofacial Pathology Unit, Dental Clinic Service, Department of Stomatology II, University of the Basque Country (UPV/EHU), Leioa, Spain.

Background: Peri-implantitis is the inflammatory process, which most commonly affects the therapy with dental implants. However, there are other reactive and neoplastic entities, mainly benign but also malignant, which also take place in the peri-implant mucosa. There is little information about the histopathological analysis of these peri-implant inflammatory diseases. Read More

Pathol Int 2020 May 5. Epub 2020 May 5.

Department of Diagnostic Pathology, NTT Medical Center Tokyo, Tokyo, Japan.

Solitary pulmonary capillary hemangiomas (SPCHs) are recently recognized, rare benign lesions that form solitary nodules owing to capillary proliferation. These lesions are usually detected incidentally as small ground-glass nodules (GGNs) on computed tomography (CT), and progressively enlarge over time. The radiological distinction from peripheral lung cancers is particularly challenging. Read More

Ear Nose Throat J 2020 Apr 30:145561320922736. Epub 2020 Apr 30.

Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea.

Ann Dermatol Venereol 2020 Apr 24. Epub 2020 Apr 24.

Département de dermatologie, hôpital Saint-Éloi, CHRU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France; Université Montpellier, 163, rue Auguste-Broussonnet, 34090 Montpellier, France; Inserm 1058, 60, rue de Navacelles, 34394 Montpellier cedex 5, France.

Dysraphism refers to neural tube closure abnormalities and midline closure abnormalities of the skin, paravertebral muscles, vertebrae and meninges. Cranial dysraphism (CD) and occult spinal dysraphism (OSD) may be discovered via evocative skin signs present at birth or appearing later in childhood or even in adulthood. This review describes the various types of skin signs associated with CD and OSD. Read More

Histol Histopathol 2020 Apr 24:18222. Epub 2020 Apr 24.

Department of Cell Biology and Histology, School of Medicine, Campus of International Excellence "Campus Mare Nostrum", IMIB-Arrixaca, University of Murcia, Murcia, Spain.

Intussusceptive angiogenesis (IA) is currently considered an important alternative and complementary form of sprouting angiogenesis (SA). Conversely, intussusceptive lymphangiogenesis (IL) is in an initial phase of study. We compare their morphofunctional characteristics, since many can be shared by both processes. Read More

World J Gastroenterol 2020 Apr;26(14):1674-1682

Department of Gastrointestinal Surgery, Weihai Central Hospital, Weihai 264200, Shandong Province, China.

Background: Gastrointestinal hemangiomas are rare benign tumors. According to the size of the affected vessels, hemangiomas are histologically classified into cavernous, capillary, or mixed-type tumors, with the cavernous type being the most common and racemose hemangiomas being very rare in the clinic. Melena of uncertain origin and anemia are the main clinical manifestations, and other presentations are rare. Read More

NMC Case Rep J 2020 Apr 24;7(2):43-46. Epub 2020 Mar 24.

Department of Neurosurgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Toyama, Japan.

We report a very rare case of intracranial capillary hemangioma. This 15-year-old girl complained of pulsating headache in the temple area that aggravated with change of body positions. This headache usually lasted for 5 min and resolved without any treatment. Read More

Diagn Pathol 2020 Mar 23;15(1):26. Epub 2020 Mar 23.

Department of Diagnostic Pathology, Kyoto University Hospital, Sakyo-ku, Kyoto, 606-8507, Japan.

Background: Insulin-like growth factor-2 messenger RNA-binding protein 3 (IGF2BP3 or IMP3) is an oncofetal protein that is expressed in various cancer types, and its expression is often associated with poor prognosis. IGF2BP3 expression has not been fully settled in vascular lesions.

Methods: We evaluated the expression of IGF2BP3 in malignant (angiosarcoma and epithelioid hemangioendothelioma [EHE]) and benign (hemangioma, granulation tissue cappilaries, and pyogenic granuloma) vascular lesions using immunohistochemistry. Read More

Histopathology 2020 Apr 12. Epub 2020 Apr 12.

Paris Descartes University, Sorbonne Paris Cité, 75005, Paris, France.

Aim: Congenital hemangiomas (CHs) can be subdivided into rapidly involuting, noninvoluting, and partially involuting subtypes (RICHs, NICHs and PICHs, respectively). During the first few days of life, RICHs may be associated with transient but sometimes marked thrombocytopenia. Given the rarity of CHs, the subtypes' histologic aspects and clinicopathological correlations have not been extensively characterized. Read More

Radiol Clin North Am 2020 May;58(3):603-618

Department of Radiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA. Electronic address:

Venous malformations and hemangiomas of the skeletal muscle are separate entities with different clinical presentation, histology, and imaging findings. Recent advances in the field of vascular anomalies and current efforts in the unification of terminology by the International Society for the Study of Vascular Anomalies are pivotal in understanding and differentiating intramuscular venous malformations and intramuscular capillary-type hemangioma. Fibroadipose vascular anomaly is another recently defined vascular anomaly affecting the skeletal muscle, with a distinct clinical presentation, histology, and imaging appearance. Read More

Acta Neurochir (Wien) 2020 Apr 2. Epub 2020 Apr 2.

Department of Neurosurgery, Odense University Hospital, Sdr. Boulevard 29, DK-5000, Odense, Denmark.

A lobular capillary hemangioma, previously known as a pyogenic granuloma, is a benign vascular lesion of the skin or mucous membrane. We report a case of capillary hemangioma of lobular subtype in the calvarium of a 28-year-old pregnant woman which presented as a sore and rapidly growing bulge over the left fronto-parietal region. Magnetic resonance imaging of the brain and skull showed an expansive tumor with brain displacement, skull erosion, and scalp infiltration. Read More

Korean J Ophthalmol 2020 Apr;34(2):133-142

Department of Ophthalmology, Chungnam National University College of Medicine, Daejeon, Korea.

Purpose: We report the clinical outcomes of retinal capillary hemangioma (RCH) after the application of various treatments.

Methods: We performed a retrospective chart analysis of eight eyes treated for RCH between August 2009 and January 2018. During the follow-up period, the status and progression of the RCHs were checked by fundus photography, fluorescein angiography, and optical coherence tomography, and additional treatments were applied when necessary. Read More

Biomater Sci 2020 Apr;8(8):2129-2142

Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.

Hemangioma, one of the most common angiogenic diseases in infants and children, is characterized by the abnormal and aggressive proliferation of vascular endothelial cells. Advanced therapeutic strategies like RNA interference can inhibit the expression of target proteins at the translational level, but they are rarely used in hemangioma treatment owing to the lack of safe carriers. In this study, we showed for the first time that RNAi technology targeting HIF-1α (hypoxia-inducible factor-1 alpha) could benefit hemangioma therapy effectively. Read More

Cureus 2020 Feb 24;12(2):e7091. Epub 2020 Feb 24.

Surgery, Flagler Hospital, St. Augustine, USA.

Malignant hidradenocarcinoma is a very rare and highly aggressive primary skin neoplasm that arises in the eccrine sweat glands. Diagnosis is typically made with histopathological evaluation after excisional biopsy. Reports of this tumor are scarce in the literature, thus making its characterization and management particularly challenging. Read More

Indian Pediatr 2020 Jun 12;57(6):512-514. Epub 2020 Mar 12.

Department of eyeSmart EMR and AEye, LV Prasad Eye Institute, Hyderabad, Telangana, India.

Objective: To describe eye tumors in Indian children (age £ 21 years) presenting to a multi-tier ophthalmology hospital network in India.

Methods: Hospital-record review.

Results: During the 3-year study period (November, 2015-October, 2018), 2911 children were diagnosed with 3003 eye tumors. Read More

Can J Neurol Sci 2020 Mar 26:1-2. Epub 2020 Mar 26.

Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada.

Sci Rep 2020 Mar 19;10(1):4987. Epub 2020 Mar 19.

Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, Tenerife, Spain.

In lobular capillary hemangioma (LCH), misnamed pyogenic granuloma, only sprouting angiogenesis (SA) has been considered. We assess the occurrence of intussusceptive angiogenesis (IA) in LCH and whether IA determines the specific and other focal patterns in the lesion. For this purpose, we study specimens of 120 cases of LCH, using semithin sections (in 10), immunohistochemistry, and confocal microscopy (in 20). Read More

Ear Nose Throat J 2020 02 4;99(2):NP21-NP22. Epub 2019 Feb 4.

Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan.

J Fr Ophtalmol 2020 Apr 25;43(4):e139-e141. Epub 2020 Feb 25.

Department of Ophthalmology Complejo Hospitalario de Navarra, Irunlarrea 3, 31008 Pamplona, Spain. Electronic address:

World J Clin Cases 2020 Feb;8(3):624-629

Department of Periodontology, School and Hospital of Stomatology, Shandong University, Shandong Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan 250012, Shandong Province, China.

Background: Oncologic immunotherapy is attracting attention as an effective strategy for cancer treatment. Currently, there are two kinds of inhibitors: Anti-PD-1 antibodies and anti-PD-L1 antibodies. These inhibitors have shown significant implications in improving the outcomes of certain cancer types in recent years. Read More

J Prim Care Community Health 2020 Jan-Dec;11:2150132720907430

University of Nigeria Teaching Hospital, Enugu, Nigeria.

Vision screening in infants is an important part of the medical care of children as some eye abnormalities, if not treated in the first few months or years of life, can lead to irreversible vision loss. The objective of this cross-sectional, descriptive study was to identify ocular anomalies among infants attending immunization clinics in Nigeria and refer promptly and appropriately. Infants were screened across 6 immunization clinics. Read More

J Ophthalmic Vis Res 2020 Jan-Mar;15(1):78-94. Epub 2020 Feb 2.

Ophthalmic Epidemiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Retinal hemangioblastoma (also referred to as retinal capillary hemangioma) is a benign lesion originating from the endothelial and glial components of the neurosensory retina and optic nerve head. Historically known as a manifestation of the von Hippel-Lindau (VHL) disease, it can be seen as an isolated finding or in association with some rare ocular conditions. In addition to characteristic ophthalmoscopic features, results of numerous ancillary tests including angiography, ultrasound, optical coherence tomography, and genetic tests may support the diagnosis and differentiate it from similar conditions. Read More

Mod Pathol 2020 Feb 24. Epub 2020 Feb 24.

Department of Dermatopathology, St John's Institute of Dermatology, St Thomas's Hospital, Westminster Bridge Road, London, SE1 7EH, UK.

Pure intravascular growth of epithelioid hemangioma (EH) is exceptional. Herein, we report a series of 21 intravascular EHs, representing a potential serious diagnostic pitfall by mimicking malignant vascular neoplsms with epithelioid morphology. The tumors developed in 12 males and 4 females, aged from 11 to 71 years (mean age 40. Read More

Ophthalmic Surg Lasers Imaging Retina 2020 02;51(2):109-115

Background And Objective: To describe a case series of three patients in one family with Von Hippel-Lindau (VHL) disease who presented with vitreoretinal neovascularization and resulting tractional retinal detachments (TRDs). This vitreoretinal phenotype of VHL may benefit from early surgical intervention.

Patients And Methods: Descriptive case series of three patients in one family with VHL disease. Read More

PLoS One 2020 20;15(2):e0229213. Epub 2020 Feb 20.

Department of Ophthalmology, Harvard Medical School, Boston, MA, United States of America.

Purpose: Von Hippel-Lindau (VHL) disease is a hereditary disorder that can lead to ophthalmic manifestations, including retinal capillary hemangioma (RCH). The diagnosis of RCH is often guided by wide-field fluorescein angiography. In some cases, optical coherence tomography angiography (OCT-A) serves as a non-invasive alternative to FA. Read More

J Ultrasound 2020 Feb 20. Epub 2020 Feb 20.

Sport Sciences Faculty, Castilla La Mancha University-SPAIN, Ciudad Real, Spain.

Klippel-Trenaunay syndrome (KTS) is a rare congenital disorder with an incidence of 1 in 100,000. It is characterized by a triad of capillary malformations (hemangiomas) or port-wine stains, venous varicosities, and bony- or soft-tissue hypertrophy. The capillary malformation is usually confined to a single extremity, usually a lower limb. Read More

Clin Neuropathol 2020 May/Jun;39(3):135-138

Background: Capillary hemangiomas of the skin and soft tissue are a common entity, while capillary hemangiomas of the central nervous system are an extremely rare pathology. There are less than 20 published cases of intradural lesions involving the cauda equina.

Case Presentation: Herein, we describe a young patient with a capillary hemangioma of the cauda equina that underwent successful surgical resection. Read More

Dermatol Online J 2019 Dec 15;25(12). Epub 2019 Dec 15.

Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, CA.

Verrucous venous malformation, also known as verrucous hemangioma, is a superficial vascular malformation with a variable degree of hyperkeratosis that is composed of capillaries and veins in the dermis and sometimes subcutaneous tissue. We describe a 53-year-old man who presented with a large hyperkeratotic plaque of the left dorsal and plantar foot. Biopsy revealed verrucous acanthosis of the epidermis and a proliferation of thin-walled vessels in the dermis. Read More

BMC Ophthalmol 2020 Feb 4;20(1):46. Epub 2020 Feb 4.

Ophthalmology department, Mohamed Taher Maamouri hospital, Faculty of Medicine Tunis El Manar, 03 Rue Abou Zid El Hilali, 2010, Manouba, Tunisia.

Background: To report the results of multimodal imaging in a case of a congenital retinal macrovessel associated with a retinal cavernous hemangioma.

Case Presentation: A 52-year-old female patient presented with progressive vision loss in the right eye. BCVA was 8/20 in the right eye and 18/20 in the left eye. Read More

Vestn Oftalmol 2019 ;135(6):108-116

Research Institute of Eye Diseases, 11A Rossolimo St., Moscow, Russian Federation, 119021.

Encephalotrigeminal angiomatosis (Sturge-Weber syndrome) is a congenital sporadic disease characterized by angiomatosis of meningeal vessels, facial and eye capillaries. The article presents a clinical case of comorbidity between monolateral skin angioma, ipsilateral conjunctival and choroidal angiomas without intraocular pressure elevation. The case is unusual due to asynchronous manifestation of the clinical signs of Sturge-Weber syndrome. Read More

Medicine (Baltimore) 2020 Jan;99(4):e18693

First Department of Pathology, Faculty of Medicine, University of Fukui, Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Japan.

Rationale: Although capillary hemangiomas, common lesions involving the proliferation of small capillary vessels and a single layer of endothelial cells, can arise in any organ, they are rarely reported in the greater or lesser omentum. Here in, we report a case of capillary hemangioma arising from the lesser omentum in an adult with interesting diagnostic imaging findings, including changes in tumor size over time on computed tomography (CT), that was resected using laparoscopic surgery. To our knowledge, this is the first English report to describe a capillary hemangioma arising from the lesser omentum. Read More

Am J Ther 2020 Jan 21. Epub 2020 Jan 21.

Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Nanjing, China.

Case Rep Radiol 2019 28;2019:7568098. Epub 2019 Dec 28.

Department of Radiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.

Capillary hemangioma is a rare entity among testicular tumors. We demonstrate the case of an 18-year-old patient with palpatoric and sonographic conspicuous left testicle and negative serum tumor markers (-fetoprotein, -human chorionic gonadotropin, and lactate dehydrogenase). Ultrasound (US) imaging represented an isoechogenic lesion with high vascularization in both power Doppler and microflow imaging with central feeding artery. Read More

J Comput Assist Tomogr 2020 Jan/Feb;44(1):70-74

From the Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China.

Purpose: The aim of this study was to determine the valuable magnetic resonance imaging (MRI) features of sinonasal metastatic clear-cell renal cell carcinoma (cc-RCC), especially focusing on its dynamic-enhanced characteristics.

Methods: The conventional and dynamic-enhanced MRI findings of 8 patients with histopathologically confirmed sinonasal metastatic cc-RCC were reviewed by 2 radiologists. The control group of 8 patients with capillary hemangioma underwent the same MRI protocol. Read More