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Chen W, Luan J, Xu H, Chen J, Xu R, Sun G, Li X. Ultrasonography findings of pediatric head and neck lymphatic malformations: A 10-year experience of 140 surgical cases. JOURNAL OF CLINICAL ULTRASOUND : JCU 2024. [PMID: 39189701 DOI: 10.1002/jcu.23787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 07/15/2024] [Accepted: 07/29/2024] [Indexed: 08/28/2024]
Abstract
OBJECTIVE To discuss the usefulness of ultrasonography (US) in the diagnosis and management of pediatric head and neck lymphatic malformations (HNLMs). METHODS We conducted a retrospective analysis of 140 children who were referred to our hospital for the treatment of HNLMs. RESULTS The median age at presentation was 12 months (1 day-171 months; 66.4% under 2 years old; 35.7% neonatus). The majority clinical presentations were asymptomatic mass (65.7%, 92/140) and cosmetic deformity (25.7%, 36/140). HNLMs involved the neck accounting for 65.7% (92/140), especially posterior cervical trigone (22.1%, 31/140), and submandibular (20.0%, 28/140). The US diagnostic accuracy was 91.4% (128/140). Their boundary with the surrounding tissues was usually clear (87.9%, 123/140), whereas the shape was mostly irregular (97.1%, 136/140). Based on surgical findings, there were 67 pure HNLMs and 73 intracystic hemorrhage. Between the two groups, there were statistical differences in capsule contents (χ2 = 7.8299, p = 0.0051), flocculent echo floating (χ2 = 21.2964, p < 0.0001), overlying skin (χ2 = 9.0498, p = 0.0026), and palpation (χ2 = 13.4058, p = 0.0003). CONCLUSIONS US typically reveals the lesion with clear boundary, irregular morphology, anechoic contents, no blood flow signal, and echoic intracapsular septum with blood flow signal. In contrast, bluish appearance, tensional palpation, and capsule contents with low/mixed echo or flocculent echo floating may indicate intracystic hemorrhage.
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Affiliation(s)
- Wei Chen
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Otolaryngology-Head and Neck Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Jia Luan
- Outpatient Department Huashan Worldwide Medical Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Hongming Xu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiarui Chen
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Rong Xu
- Department of Radiology, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guangbin Sun
- Department of Otolaryngology-Head and Neck Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaoyan Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, Shanghai, China
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2
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Tofanelli L, Napolitano M, Baraldini V, Moneghini L. Venous malformations in children: comparison between magnetic resonance imaging and histopathological findings. Pediatr Radiol 2024; 54:1497-1506. [PMID: 38963573 DOI: 10.1007/s00247-024-05977-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024]
Abstract
BACKGROUND Among low-flow vascular malformations, venous malformations are relatively frequent. The pathological patterns vary in severity and are generally characterized by dilated vessels and low-flow blood that over time can organize into phleboliths. Sometimes small capillary and/or lymphatic vessels may be associated, micro- and/or macro-shunts may form alone or in different combinations, and finally adipose tissue may be interposed between the malformed vessels. Magnetic resonance imaging (MRI) is a crucial examination for confirming venous malformations because it can accurately identify different features of the lesions. OBJECTIVE The aim of our study was to compare MRI and histopathological findings of venous malformations in children to assess the possibilities and limitations of MRI. MATERIALS AND METHODS In a retrospective study, two observers independently evaluated the contrast-enhanced MRI of 26 children with venous malformations. Several radiological parameters were considered and compared with histopathological findings. The agreement between the interobserver radiological evaluation and between histopathological and radiological diagnosis was verified using Cohen's kappa. RESULTS MRI interobserver agreement was excellent for micro-shunts and good for the remaining findings. The radiological-pathological agreement was perfect for the presence/absence of phleboliths and of macro-shunts and almost perfect for the presence of intralesional adipose tissue, lymphatic component, and micro-shunts. CONCLUSION MRI in venous malformations can detect the presence of phleboliths, adipose tissue, and lymphatic components with excellent accuracy and good to excellent interobserver agreement. Furthermore, MR angiography can detect micro-shunts in simple and combined venous malformations with substantial agreement with histopathological findings.
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Affiliation(s)
- L Tofanelli
- Department of Radiology, Santi Paolo e Carlo Hospital Medical School, University of Milan, Milan, Italy
| | - M Napolitano
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Milan, Italy
| | - V Baraldini
- Center for Pediatric Vascular Malformations-Pediatric Surgery Unit V. Buzzi Children's Hospital, Milan, Italy
| | - L Moneghini
- Unit of Human Pathology, Department of Health Sciences, Santi Paolo e Carlo Hospital Medical School, University of Milan, Via Di Rudinì 8, 20148, Milan, Italy.
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3
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Klein WM, Papaioannou G. Magnetic resonance imaging of fetal vascular malformations. Pediatr Radiol 2024:10.1007/s00247-024-05983-9. [PMID: 38980353 DOI: 10.1007/s00247-024-05983-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/17/2024] [Accepted: 06/22/2024] [Indexed: 07/10/2024]
Abstract
Vascular anomalies develop during fetal life and can be detected on prenatal ultrasonography and fetal magnetic resonance imaging. Diagnosis of lymphatic, venous, and arteriovenous malformations, as well as congenital hemangiomas and other congenital vascular tumors, may be challenging. The benign vascular anomalies may be difficult to differentiate from malignancies with a similar appearance. In this manuscript, we present a succinct overview of the congenital vascular anomalies that may present in fetal or neonatal life.
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Affiliation(s)
- Willemijn M Klein
- Department of Medical Imaging, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands.
- Expertise Center for Hemangiomas and Congenital Vascular Malformations Nijmegen (Hecovan), Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Georgia Papaioannou
- Paediatric Radiology Department, Mitera Maternity and Children's Hospital, Athens, Greece
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4
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Hartman E, Balkin DM, See AP. A Review of the Current State and Future Directions for Management of Scalp and Facial Vascular Malformations. J Korean Neurosurg Soc 2024; 67:315-325. [PMID: 38720545 PMCID: PMC11079557 DOI: 10.3340/jkns.2024.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/06/2024] [Accepted: 04/16/2024] [Indexed: 05/12/2024] Open
Abstract
Vascular malformations are structural abnormalities that are thought to result from errors in vasculogenesis and angiogenesis during embryogenesis. Vascular malformations of the scalp present unique management challenges due to aesthetic and functional implications. This review examines the pathophysiology, clinical presentation, and management techniques for six common types of vascular malformations of the face and scalp : infantile hemangioma, capillary malformations, venous malformations, lymphatic malformations, arteriovenous malformations, and arteriovenous fistulas. These lesions range from common to rare, and have very different natural histories and management paradigms. There has been increasing understanding of the molecular pathways that are altered in association with these vascular lesions and these molecular targets may represent novel strategies of treating lesions that have historically been approached from a structural perspective only.
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Affiliation(s)
- Emma Hartman
- Department of Neurosurgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Daniel M. Balkin
- Department of Plastic & Oral Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Alfred Pokmeng See
- Department of Neurosurgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
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5
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Chaouch E, Aydin S, Cristina Anca D. Unusually Hypervascularized Liver Lesion. J Belg Soc Radiol 2024; 108:45. [PMID: 38680725 PMCID: PMC11049680 DOI: 10.5334/jbsr.3576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/07/2024] [Indexed: 05/01/2024] Open
Abstract
Teaching point: Microcystic lymphangioma is a rare but benign lesion that should be differentiated from a neoplasm.
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6
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Shelar SS, Dhande R, Parihar P, Shetty ND, Khandelwal S. A Comprehensive Review of Sonographic Assessment of Peripheral Slow-Flow Vascular Malformations. Cureus 2024; 16:e54099. [PMID: 38487131 PMCID: PMC10938085 DOI: 10.7759/cureus.54099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/12/2024] [Indexed: 03/17/2024] Open
Abstract
This comprehensive review explores the role of sonographic assessment in diagnosing and characterizing peripheral slow-flow vascular malformations (PSFVM). The review begins with an introduction providing the background and significance of PSFVM, defining these vascular anomalies, and emphasizing the importance of sonography in their diagnosis. The objectives focus on a thorough examination of existing literature, assessing the effectiveness of sonography in delineating morphological and hemodynamic features crucial for accurate classification. The summary of key findings highlights the diagnostic accuracy of sonography while acknowledging its limitations. Implications for clinical practice emphasize the practical utility of sonography in early diagnosis and preoperative planning, suggesting integration into multimodal approaches. The conclusion underscores the need for standardized criteria, ongoing education, and future research, positioning sonography as a valuable tool in the comprehensive management of PSFVM.
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Affiliation(s)
- Sheetal S Shelar
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Rajasbala Dhande
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pratap Parihar
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Neha D Shetty
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Shreya Khandelwal
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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7
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Abstract
Neck masses are frequent in the pediatric population and are usually divided into congenital, inflammatory, and neoplastic. Many of these lesions are cystic and are often benign. Solid masses and vascular lesions are relatively less common, and the imaging appearances can be similar. This article reviews the clinical presentation and imaging patterns of pediatric solid and vascular neck masses.
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Affiliation(s)
- Mark D Mamlouk
- Department of Radiology, The Permanente Medical Group, Kaiser Permanente Medical Center, 700 Lawrence Expy, Santa Clara, CA 95051, USA; Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, L371, San Francisco, CA 94143, USA.
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8
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Biswas A, Wong OY, Aygun B, Gore S, Mankad K. Extraocular Orbital and Peri-Orbital Masses. Neuroimaging Clin N Am 2023; 33:643-659. [PMID: 37741663 DOI: 10.1016/j.nic.2023.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
In this article, we will describe relevant anatomy and imaging findings of extraocular and orbital rim pathologic conditions. We will highlight important clinical and imaging pearls that help in differentiating these lesions from one another, and provide a few practical tips for challenging cases.
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Affiliation(s)
- Asthik Biswas
- Department of Neuroradiology, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London WC1N 3JH, UK.
| | - Oi Yean Wong
- Department of Neuroradiology, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London WC1N 3JH, UK
| | - Berna Aygun
- Department of Neuroradiology, UK Kings College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK
| | - Sri Gore
- Department of Ophthalmology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Kshitij Mankad
- Department of Neuroradiology, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London WC1N 3JH, UK; UCL GOS Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
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9
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Ota Y, Lee E, Sella E, Agarwal P. Vascular Malformations and Tumors: A Review of Classification and Imaging Features for Cardiothoracic Radiologists. Radiol Cardiothorac Imaging 2023; 5:e220328. [PMID: 37693195 PMCID: PMC10483253 DOI: 10.1148/ryct.220328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 05/02/2023] [Accepted: 05/17/2023] [Indexed: 09/12/2023]
Abstract
The International Society for the Study of Vascular Anomalies (ISSVA) classification is a comprehensive histology-based scheme that was updated in 2018. It is important for cardiothoracic imagers to understand this classification to ensure that accurate terminology is used and that archaic terms are avoided when vascular lesions are described. Knowledge of the various malformations (including common conditions, such as venous malformation, arteriovenous fistula, and arteriovenous malformation) and vascular tumors allows for timely diagnosis and appropriate management. This review describes various vascular anomalies, in accordance with ISSVA classification and terminology; highlights key imaging features associated with each; and discusses the role of different imaging modalities. Keywords: Pulmonary, Soft Tissues/Skin, Vascular, Arteriovenous Malformation © RSNA, 2023.
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Affiliation(s)
- Yoshiaki Ota
- From the Division of Cardiothoracic Radiology, Department of
Radiology, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI
48109
| | - Elizabeth Lee
- From the Division of Cardiothoracic Radiology, Department of
Radiology, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI
48109
| | - Edith Sella
- From the Division of Cardiothoracic Radiology, Department of
Radiology, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI
48109
| | - Prachi Agarwal
- From the Division of Cardiothoracic Radiology, Department of
Radiology, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI
48109
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10
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Slack JC, Putra J, Callahan MJ, Church AJ, Teot LA, Eng W, Perez-Atayde AR. Splenic Lymphatic Malformation With Papillary Endothelial Proliferation: A Rare Histologic Variant or a Unique Entity? Am J Surg Pathol 2023; Publish Ahead of Print:00000478-990000000-00184. [PMID: 37334821 DOI: 10.1097/pas.0000000000002070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Lymphatic malformations (LMs) are congenital anomalies of the lymphatic system due to abnormalities that occur during the development of the lymphovascular system. Also known as lymphangiomas, they are usually multifocal, affect multiple organ systems, and are seen in a variety of developmental or overgrowth syndromes. Splenic lymphangiomas are uncommon and usually occur in the context of multiorgan lymphangiomatosis. Within the spleen, 7 prior cases have been reported of LMs with unusual papillary endothelial proliferations (PEPs), which can mimic more aggressive splenic lymphovascular tumors. It is not currently known if splenic LM-PEP represents a unique entity, or is simply an unusual, site-specific, morphologic variant of LM. To address this question, we conducted a retrospective, single-institutional review of this rare entity and systematically evaluated its clinical, histologic, radiologic, electron microscopical, and molecular features. In all 3 splenic LM-PEPs, the clinical course was benign, imaging demonstrated subcapsular lesions with characteristic "spoke-and-wheel" appearance, histology showed distinctive PEPs within lymphatic microcysts, immunohistochemistry confirmed a lymphatic endothelial phenotype and electron microscopy demonstrated lesional endothelial cells, rich in mitochondria and intermediate filaments with prominent cytoplasmic lumina and vacuoles and lacking Weibel-Palade granules. Occasional lymphothelial cells were situated within the cytoplasm of another lesional cell, appearing to be engulfed. Next-generation sequencing identified a PIK3CA mutation in 1 patient, while in 2 others no molecular alterations were identified. We conclude with a summary of all prior published cases and discuss key diagnostic elements that distinguish this benign entity from its more aggressive mimickers.
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Affiliation(s)
| | | | | | | | | | - Whitney Eng
- Department of Pediatric Hematology/Oncology, Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA
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11
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Beqo BP, Gasparella P, Flucher C, Tschauner S, Brcic I, Haxhija EQ. Subcutaneous Granuloma Annulare vs. Subcutaneous Vascular Malformations in Children: A Diagnostic Challenge. CHILDREN (BASEL, SWITZERLAND) 2023; 10:children10020362. [PMID: 36832491 PMCID: PMC9955411 DOI: 10.3390/children10020362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/01/2023] [Accepted: 02/04/2023] [Indexed: 02/16/2023]
Abstract
OBJECTIVES There are various subcutaneous lesions in children and often there is difficulty in obtaining an accurate diagnosis by non-invasive diagnostic procedures. Subcutaneous granuloma annulare (SGA) is a rare granulomatous disease that, even after imaging, is often mistaken for a low-flow subcutaneous vascular malformation (SVM). This study aimed to accurately identify clinical and imaging clues to distinguish SGA from low-flow SVM. METHODS We retrospectively analyzed complete hospital records of all children with a confirmed diagnosis of SGA and low-flow SVM who underwent MR imaging at our institution from January 2001 to December 2020. Their disease history, clinical and imaging findings, management, and outcome were evaluated. RESULTS Among 57 patients with granuloma annulare, we identified 12 patients (nine girls) with a confirmed SGA diagnosis who underwent a preoperative MRI. Their median age was 3.25 years (range 2-5 years). Of 455 patients diagnosed with vascular malformations, 90 had malformations limited to the subcutaneous area. Among them only 47 patients with low-flow SVM were included in the study and further analyzed. Our SGA cohort had a female predilection (75%) and a short history of lump appearance of 1.5 months. SGA lesions were immobile and firm. Before MRI, patients underwent initial evaluation by ultrasound (100%) and X-ray (50%). Surgical tissue sampling was performed in all SGA patients to establish a diagnosis. All 47 patients with low-flow SVM were diagnosed correctly by MRI. A total of 45 patients (96%) underwent surgical resection of the SVM. A careful retrospective review of imaging findings of patients with SGA and SVM showed that SGA present as homogenous lesions in the shape of an epifascial cap with a typical broad fascial base extending towards the subdermal tissue in the middle of the lesion. In contrast, SVMs always present with variable-sized multicystic or tubular areas. CONCLUSIONS Our study shows clear clinical and imaging differences between low-flow SVMs and SGA. SGA presents characteristically in the shape of a homogenous "epifascial cap," which distinguishes these lesions from multicystic heterogenous SVMs.
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Affiliation(s)
- Besiana P. Beqo
- Department of Paediatric and Adolescent Surgery, Medical University of Graz, A-8036 Graz, Austria
- Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Paolo Gasparella
- Department of Paediatric and Adolescent Surgery, Medical University of Graz, A-8036 Graz, Austria
- VASCERN VASCA European Reference Centre, Bichat-Claude Bernard Hospital, 75018 Paris, France
| | - Christina Flucher
- Department of Paediatric and Adolescent Surgery, Medical University of Graz, A-8036 Graz, Austria
- VASCERN VASCA European Reference Centre, Bichat-Claude Bernard Hospital, 75018 Paris, France
| | - Sebastian Tschauner
- Division of Paediatric Radiology, Department of Radiology, Medical University of Graz, A-8036 Graz, Austria
| | - Iva Brcic
- Institute of Pathology, Medical University of Graz, A-8036 Graz, Austria
| | - Emir Q. Haxhija
- Department of Paediatric and Adolescent Surgery, Medical University of Graz, A-8036 Graz, Austria
- Institute of Pathology, Medical University of Graz, A-8036 Graz, Austria
- Correspondence: ; Tel.: +43-(0)316-38513762; Fax: +43-(0)316-38513775
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12
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Sharma S, Rayamajhi A, Shrestha JM. A lymphatic malformation with a “Lympholith” and encasing neurovascular structures in the arm of a 2‐year‐old child: A case report. Clin Case Rep 2022; 10:e6608. [DOI: 10.1002/ccr3.6608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 09/27/2022] [Accepted: 11/02/2022] [Indexed: 11/21/2022] Open
Affiliation(s)
- Samit Sharma
- Department of Plastic Surgery and Burns Tribhuvan University Teaching Hospital Kathmandu Nepal
| | - Aadesh Rayamajhi
- Institute of Medicine, Maharajgunj Medical Campus Tribhuvan University Kathmandu Nepal
| | - Jayan Man Shrestha
- Department of Plastic Surgery and Burns Tribhuvan University Teaching Hospital Kathmandu Nepal
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13
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Pahl KS, Pabon-Ramos WM, Jeng MR. How we approach localized vascular anomalies. Pediatr Blood Cancer 2022; 69 Suppl 3:e29321. [PMID: 36070210 DOI: 10.1002/pbc.29321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 01/19/2023]
Abstract
Vascular anomalies are a group of disorders divided into two distinct subtypes: vascular tumors and vascular malformations. Vascular tumors are proliferative in nature, while malformations are nonproliferative. Simple, localized vascular malformations refer to a group of malformations that are localized to a single area of involvement. These simple malformations include capillary, lymphatic, venous, and arteriovenous malformations. The pediatric hematologists and oncologists are becoming increasingly involved in the diagnosis and management of these disorders. This review presents four cases as a means to discuss the diagnosis, clinical and imaging features, and management strategies of simple, localized vascular malformations.
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Affiliation(s)
- Kristy S Pahl
- Department of Pediatrics, Duke University Medical Center, Durham, North Carolina, USA
| | - Waleska M Pabon-Ramos
- Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Michael R Jeng
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
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14
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Panayiotou A, De La Hoz Polo M, Tang V, Haque S. Spectrum of anatomical variants, normal findings and pathology in and around the paediatric sternum. Pediatr Radiol 2022; 52:1175-1186. [PMID: 35142891 DOI: 10.1007/s00247-021-05268-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/18/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
Abnormalities of the sternum and adjacent structures are an uncommon presentation in the paediatric population and can have a variety of benign and malignant causes, including normal and developmental variants of the chest wall. Although there is overlap with adults, many sternal abnormalities are unique to the paediatric population. Following clinical examination, radiography is usually the first type of imaging used; however, it is limited and often ultrasound and cross-sectional imaging are needed for further assessment. An understanding of the normal anatomy is important; however, this can be challenging due to the varied appearances of age-related changes of the sternum. The purpose of this article is to familiarize the general paediatric radiologist with the expected anatomy and imaging findings of the developing sternum, anatomical variants and pathology of the sternum and adjacent structures encountered in this group of patients.
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Affiliation(s)
- Andreas Panayiotou
- Department of Radiology, Kings College Hospital, Denmark Hill, London, SE5 9RS, UK.
| | | | - Vivian Tang
- Department of Radiology, Royal Manchester Children's Hospital, Manchester, UK
| | - Saira Haque
- Department of Radiology, Kings College Hospital, Denmark Hill, London, SE5 9RS, UK
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15
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D’Arco F, Ugga L. Pearls, Pitfalls, and Mimics in Pediatric Head and Neck Imaging. Neuroimaging Clin N Am 2022; 32:433-445. [DOI: 10.1016/j.nic.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Mehta N, Dudani P, Agarwal S, Gupta S, Sahni K. Venous malformation mimicking epidermoid cyst at the peri-ocular location in adults. Indian J Dermatol Venereol Leprol 2022; 88:399-401. [PMID: 35434983 DOI: 10.25259/ijdvl_918_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 01/01/2022] [Indexed: 11/04/2022]
Affiliation(s)
- Nikhil Mehta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, Ansari Nagar, Delhi, India
| | - Pankhuri Dudani
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, Ansari Nagar, Delhi, India
| | - Shipra Agarwal
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, Delhi, India
| | - Somesh Gupta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, Ansari Nagar, Delhi, India
| | - Kanika Sahni
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, Ansari Nagar, Delhi, India
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17
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Neonatal vascular anomalies manifesting as soft-tissue masses. Pediatr Radiol 2022; 52:786-801. [PMID: 34374837 DOI: 10.1007/s00247-021-05149-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/25/2021] [Accepted: 06/28/2021] [Indexed: 01/19/2023]
Abstract
The broad and heterogeneous spectrum of vascular anomalies ranges from an innocuous localized cutaneous discoloration to complex, extensive and life-threatening diagnoses. While many of these lesions are present at birth, smaller and deeper lesions might be clinically occult for months or years. Certain vascular anomalies commonly manifest in the prenatal or neonatal period and often have suggestive clinical and imaging features that can aid the radiologist in making a correct diagnosis. The characteristics of such lesions presenting very early in life, particularly those manifesting as soft-tissue masses, are the focus of this review.
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18
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Lymphatic Anomalies in Children: Update on Imaging Diagnosis, Genetics and Treatment. AJR Am J Roentgenol 2022; 218:1089-1101. [PMID: 35043669 DOI: 10.2214/ajr.21.27200] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Lymphatic anomalies comprise a spectrum of disorders ranging from common localized microcystic and macrocystic lymphatic malformations (LMs) to rare complex lymphatic anomalies, including generalized lymphatic anomaly, Kaposiform lymphangiomatosis, central conducting lymphatic anomaly, and Gorham-Stout disease. Imaging diagnosis of cystic LMs is generally straightforward, but complex lymphatic anomalies, particularly those with multi-organ involvement or diffuse disease, may be more challenging to diagnose. Complex lymphatic anomalies are rare but associated with high morbidity. Imaging plays an important role in their diagnosis, and radiologists may be the first clinicians to suggest the diagnosis. Furthermore, radiologists are regularly involved in management given the frequent need for image-guided interventions. For these reasons, it is crucial for radiologists to be familiar with the spectrum of entities comprising complex lymphatic anomalies and their typical imaging findings. In this article, we review the imaging findings of lymphatic anomalies, including LMs and complex lymphatic anomalies. We discuss characteristic imaging findings, multimodality imaging techniques used for evaluation, pearls and pitfalls in diagnosis, and potential complications. We also review recently discovered genetic changes underlying lymphatic anomaly development and the advent of new molecularly targeted therapies.
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19
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Lee S, Ko SY, Park WJ. Macrocystic lymphatic malformation of the chest wall and axilla: A case report in a 45-year-old man. Radiol Case Rep 2022; 17:152-155. [PMID: 34820040 PMCID: PMC8601962 DOI: 10.1016/j.radcr.2021.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 10/02/2021] [Indexed: 11/16/2022] Open
Abstract
Lymphatic malformations (LMs) are rare, with more than 90% occurring during childhood. Most LMs are located in the head, neck and axilla. LMs in chest wall are extremely rare, particularly in adults. This report describes a 45-year-old man with a large macrocystic LM in the right anterior chest wall. Computed tomography showed a ∼15 cm sized, well-defined, homogeneous and hypoattenuated mass without enhancement in the right anterior chest wall. On ultrasonography (US), the mass was circumscribed and anechoic, with internal septations and posterior acoustic enhancement. Following surgical excision, the mass was diagnosed as a macrocystic LM.
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Affiliation(s)
- Sunhyang Lee
- Department of Radiology, Daejin Medical Center Bundang Jesaeng General Hospital, Seongnam, Korea
| | - Su Yeon Ko
- Department of Radiology, Jeju National Universitiy College of Medicine, Jeju, Korea
| | - Woon-Ju Park
- Department of Radiology, Daejin Medical Center Bundang Jesaeng General Hospital, Seongnam, Korea
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20
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Samet JD, Restrepo R, Rajeswaran S, Lee EY, Green JR. Pediatric Vascular Malformations: Imaging Guidelines and Recommendations. Radiol Clin North Am 2021; 60:179-192. [PMID: 34836564 DOI: 10.1016/j.rcl.2021.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Vascular malformations are commonly encountered in the pediatric population. This article reviews the imaging appearances of simple and syndromic vascular malformations in infants and children that radiologists should know and provides imaging guidelines based on an evidence-based approach. Malformations are discussed within the framework of the International Society for the Study of Vascular Anomalies classification system.
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Affiliation(s)
- Jonathan D Samet
- Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 East Chicago Avenue Box 9, Chicago, IL 60611, USA.
| | - Ricardo Restrepo
- Department of Interventional Radiology and Body Imaging, Nicklaus Children's Hospital, 3100 SW 62nd Avenue, Miami, FL 33155, USA
| | - Shankar Rajeswaran
- Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 East Chicago Avenue Box 9, Chicago, IL 60611, USA
| | - Edward Y Lee
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Jared R Green
- Joe DiMaggio Children's Hospital, Envision Radiology associates of Hollywood, 500 N Hiatus Road, Suite 200, Pembroke Pines, FL 33026, USA
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21
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Abdel Razek AAK, Elmokadem AH, Soliman M, Mukherji SK. MR Imaging of Vascular Malformations and Tumors of Head and Neck. Magn Reson Imaging Clin N Am 2021; 30:199-213. [PMID: 34802579 DOI: 10.1016/j.mric.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Soft tissue vascular anomalies show a wide heterogeneity of clinical manifestations and imaging features. MR imaging has an important role in the diagnosis and management of vascular lesions of the head and neck. MR angiography is mandatory in cases of arteriovenous and combined malformations to assess the high-flow nature/component of the lesions and plan therapy. Infantile hemangiomas can be differentiated from congenital hemangiomas by clinical course. Reactive vascular tumors have nonspecific features similar to infantile hemangiomas. Locally malignant and malignant vascular tumors have irregular borders, infiltration of different tissue planes, and lower apparent diffusion coefficient values than benign vascular tumors.
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Affiliation(s)
| | - Ali H Elmokadem
- Department of Diagnostic Radiology, Mansoura University Faculty of Medicine, Elgomhoria Street, Mansoura 35512, Egypt
| | - Mosad Soliman
- Department of Vascular Surgery, Mansoura University Faculty of Medicine, Elgomhoria Street, Mansoura 35512, Egypt
| | - Suresh K Mukherji
- Marian University, Head and Neck Radiology, ProScan Imaging, Carmel, IN, USA.
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22
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Li Y, Mashhood A, Mamlouk MD, Lindan CE, Feldstein VA, Glenn OA. Prenatal Diagnosis of Third and Fourth Branchial Apparatus Anomalies: Case Series and Comparison with Lymphatic Malformation. AJNR Am J Neuroradiol 2021; 42:2094-2100. [PMID: 34620588 DOI: 10.3174/ajnr.a7293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/19/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Third and fourth branchial apparatus anomalies are rare congenital anomalies. The purpose of this study was to investigate imaging features of these lesions on fetal MR imaging in comparison with lymphatic malformations, the major competing differential diagnosis in these cases. MATERIALS AND METHODS A retrospective review of our institutional fetal MR imaging database between 1997 and 2019 resulted in 4 patients with confirmed third and fourth branchial apparatus anomalies and 14 patients with confirmed lymphatic malformations. The imaging features were reviewed by consensus, and the Fisher exact test was used to evaluate statistically significant differences between these 2 populations. RESULTS Four cases of third and fourth branchial apparatus anomalies were imaged at 29 weeks 1 day (range, 23 weeks 1 day to 33 weeks 4 days). All 4 cases demonstrated unilateral, unilocular cysts without reduced diffusion or hemorrhage and a medially directed beaked contour that tapered between the spine and airway at the level of the piriform sinus. Compared with 14 cases of fetal lymphatic malformations imaged at 27 weeks 6 days (range, 21 weeks 3 days to 34 weeks 6 days), third and fourth branchial apparatus cysts were significantly more likely to be unilocular (P < .005) and to have a medially beaked contour (P < .005). The combination of features of unilateral, unilocular, and medially beaked contour was observed only in the fetuses with third and fourth branchial apparatus cysts (P < .001). CONCLUSIONS The presence of a left-sided unilocular cyst with a medially beaked contour tapering at the level of the piriform sinus suggests the diagnosis of third and fourth branchial apparatus anomaly. Accurate diagnosis in the prenatal period allows proper counseling, genetic work-up, and treatment, potentially sparing patients from recurrent infections and associated morbidity.
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Affiliation(s)
- Y Li
- From the Department of Radiology and Biomedical Imaging (Y.L., C.E.L., V.A.F., O.A.G.), Neuroradiology Section, University of California San Francisco, San Francisco, California
| | - A Mashhood
- Palo Alto Veteran Affairs Medical Center (A.M.), Stanford University, Palo Alto, California
| | - M D Mamlouk
- The Permanente Medical Group (M.D.M.), Kaiser Permanente Medical Center Santa Clara, Santa Clara, California
| | - C E Lindan
- From the Department of Radiology and Biomedical Imaging (Y.L., C.E.L., V.A.F., O.A.G.), Neuroradiology Section, University of California San Francisco, San Francisco, California
| | - V A Feldstein
- From the Department of Radiology and Biomedical Imaging (Y.L., C.E.L., V.A.F., O.A.G.), Neuroradiology Section, University of California San Francisco, San Francisco, California
| | - O A Glenn
- From the Department of Radiology and Biomedical Imaging (Y.L., C.E.L., V.A.F., O.A.G.), Neuroradiology Section, University of California San Francisco, San Francisco, California
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23
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Cîrstoveanu C, Bizubac AM, Mustea C, Manolache Ș, Istrate-Bârzan A, Sfrijan D, Marcu V, Iozsa DA, Spătaru RI. Antiproliferative therapy with sirolimus and propranolol for congenital vascular anomalies in newborns (Case reports). Exp Ther Med 2021; 22:1097. [PMID: 34504551 PMCID: PMC8383751 DOI: 10.3892/etm.2021.10531] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/30/2021] [Indexed: 11/20/2022] Open
Abstract
We present a series of four newborns diagnosed with complicated congenital vascular anomalies, with different localization: Congenital lymphatic malformation (CLM) on the left hemithorax extending on the left upper limb; congenital hepatic hemangioma (CHH) with important complications in the first 7 weeks of life; Kaposiform hemangioendothelioma (KHE) of the left lower limb complicated with Kasabach Merritt phenomenon (KMM) and most probable diffuse capillary malformation with overgrowth (DCMO). All patients were treated with combined antiproliferative therapy with sirolimus and propranolol. The initial dose of sirolimus was 0.45-0.5 mg/m2 with doses adjusted according to plasmatic levels. Therapeutic intervals of sirolimus were considered at plasmatic levels of 7-12 ng/ml. Our aim was to use the lowest therapeutic dose in order to avoid possible side effects. Propranolol was initiated in doses of 0.5-1.0 mg/kg/day and was increased up to 3.0 mg/kg/day depending on tolerability. Following two months, every patient showed a marked reduction in the size of the mass, improvement in overall appearance or even calcification in the liver vascular tumor. No patient showed life threatening side effects to the treatment. Hypertriglyceridemia was the only side effect noted in all patients. This is in accordance with several international studies, which try to demonstrate the importance of sirolimus in neonatal vascular malformations in monotherapy or combined with different drugs.
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Affiliation(s)
- Cătălin Cîrstoveanu
- Neonatal Intensive Care Unit, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania.,Department of Pediatrics, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Ana Mihaela Bizubac
- Neonatal Intensive Care Unit, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania.,Department of Pediatrics, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Cristina Mustea
- Neonatal Intensive Care Unit, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
| | - Ștefan Manolache
- Neonatal Intensive Care Unit, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
| | - Alexandra Istrate-Bârzan
- Neonatal Intensive Care Unit, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
| | - Doinița Sfrijan
- Department of Pediatrics, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania.,Oncology Department, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
| | - Veronica Marcu
- Radiology Department, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
| | - Dan-Alexandru Iozsa
- Pediatric Surgery Department, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania.,Department of Pediatric Surgery and Orthopedics, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Radu-Iulian Spătaru
- Pediatric Surgery Department, 'Marie S. Curie' Emergency Clinical Hospital for Children, 077120 Bucharest, Romania.,Department of Pediatric Surgery and Orthopedics, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
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24
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Larson AS, Brinjikji W, Anderson KR, Tollefson M, Michelle Silvera V, Guerin JB. Imaging of benign cervicofacial vascular anomalies and associated syndromes. Interv Neuroradiol 2021; 28:364-374. [PMID: 34397285 DOI: 10.1177/15910199211034989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Cervicofacial vascular anomalies can result in morbidity, pain, and cosmetic concerns in affected individuals. Each anomaly has its own unique natural history, treatment, and associations with underlying genetic syndromes. For optimal patient care, it is important for the neuroradiologist to accurately recognize and characterize these entities to ensure appropriate treatment and management. In this review, we discuss the general characteristics, classifications, and imaging features associated with the most common vascular anomalies such as hemangiomas, arteriovenous malformations and fistulas, capillary malformations, venous malformations, and lymphatic malformations in the context of associated syndromes. Additionally, we discuss novel imaging techniques that aid in identifying these vascular anomalies.
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Affiliation(s)
| | - Waleed Brinjikji
- Department of Radiology, 6915Mayo Clinic, USA.,Department of Neurosurgery, 6915Mayo Clinic, USA
| | | | - Megha Tollefson
- Department of Dermatology, 6915Mayo Clinic, USA.,Department of Pediatric & Adolescent Medicine, 6915Mayo Clinic, USA
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25
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Biko DM, Lichtenberger JP, Rapp JB, Khwaja A, Huppmann AR, Chung EM. Mediastinal Masses in Children: Radiologic-Pathologic Correlation. Radiographics 2021; 41:1186-1207. [PMID: 34086496 DOI: 10.1148/rg.2021200180] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Most pediatric masses in the chest are located in the mediastinum. These masses are often initially detected incidentally on chest radiographs in asymptomatic children, although some patients may present with respiratory symptoms. At chest radiography, the mediastinum has been anatomically divided into anterior, middle, and posterior compartments. However, with the International Thymic Malignancy Interest Group classification scheme, which is based on cross-sectional imaging findings, the mediastinum is divided into prevascular, visceral, and paravertebral compartments. In the prevascular compartment, tumors of thymic origin, lymphomas, germ cell tumors, and vascular tumors are encountered. In the visceral compartment, lymphadenopathy and masses related to the foregut are seen. In the paravertebral compartment, neurogenic tumors are most common. Using the anatomic location in combination with knowledge of the imaging and pathologic features of pediatric mediastinal masses aids in accurate diagnosis of these masses to guide treatment and management decisions. An invited commentary by Lee and Winant is available online. ©RSNA, 2021.
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Affiliation(s)
- David M Biko
- From the Pediatric Radiology Section (D.M.B., E.M.C.) and Thoracic Radiology Section (J.P.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (D.M.B., J.B.R., A.K.); Department of Radiology, George Washington University, Washington, DC (J.P.L.); Department of Biomedical Sciences, University of South Carolina School of Medicine, Greenville, SC (A.R.H.); and Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio (E.M.C)
| | - John P Lichtenberger
- From the Pediatric Radiology Section (D.M.B., E.M.C.) and Thoracic Radiology Section (J.P.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (D.M.B., J.B.R., A.K.); Department of Radiology, George Washington University, Washington, DC (J.P.L.); Department of Biomedical Sciences, University of South Carolina School of Medicine, Greenville, SC (A.R.H.); and Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio (E.M.C)
| | - Jordan B Rapp
- From the Pediatric Radiology Section (D.M.B., E.M.C.) and Thoracic Radiology Section (J.P.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (D.M.B., J.B.R., A.K.); Department of Radiology, George Washington University, Washington, DC (J.P.L.); Department of Biomedical Sciences, University of South Carolina School of Medicine, Greenville, SC (A.R.H.); and Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio (E.M.C)
| | - Asef Khwaja
- From the Pediatric Radiology Section (D.M.B., E.M.C.) and Thoracic Radiology Section (J.P.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (D.M.B., J.B.R., A.K.); Department of Radiology, George Washington University, Washington, DC (J.P.L.); Department of Biomedical Sciences, University of South Carolina School of Medicine, Greenville, SC (A.R.H.); and Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio (E.M.C)
| | - Alison R Huppmann
- From the Pediatric Radiology Section (D.M.B., E.M.C.) and Thoracic Radiology Section (J.P.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (D.M.B., J.B.R., A.K.); Department of Radiology, George Washington University, Washington, DC (J.P.L.); Department of Biomedical Sciences, University of South Carolina School of Medicine, Greenville, SC (A.R.H.); and Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio (E.M.C)
| | - Ellen M Chung
- From the Pediatric Radiology Section (D.M.B., E.M.C.) and Thoracic Radiology Section (J.P.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (D.M.B., J.B.R., A.K.); Department of Radiology, George Washington University, Washington, DC (J.P.L.); Department of Biomedical Sciences, University of South Carolina School of Medicine, Greenville, SC (A.R.H.); and Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio (E.M.C)
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26
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Heeger AP, Ackman JB. Added Value of Magnetic Resonance Imaging for the Evaluation of Mediastinal Lesions. Radiol Clin North Am 2021; 59:251-277. [PMID: 33551086 DOI: 10.1016/j.rcl.2020.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The high soft tissue contrast and tissue characterization properties of magnetic resonance imaging allow further characterization of indeterminate mediastinal lesions on chest radiography and computed tomography, increasing diagnostic specificity, preventing unnecessary intervention, and guiding intervention or surgery when needed. The combination of its higher soft tissue contrast and ability to image dynamically during free breathing, without ionizing radiation exposure, allows more thorough and readily appreciable assessment of a lesion's invasiveness and assessment of phrenic nerve involvement, with significant implications for prognostic clinical staging and surgical management.
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Affiliation(s)
- Allen P Heeger
- Department of Radiology, Division of Thoracic Imaging and Intervention, Harvard Medical School, Massachusetts General Hospital, Founders House 202, 55 Fruit Street, Boston, MA 02114, USA
| | - Jeanne B Ackman
- Department of Radiology, Division of Thoracic Imaging and Intervention, Harvard Medical School, Massachusetts General Hospital, Founders House 202, 55 Fruit Street, Boston, MA 02114, USA.
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27
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MRI for Response Assessment of Extensive Lymphatic Malformations in Children Treated With Sirolimus. AJR Am J Roentgenol 2021; 217:741-752. [PMID: 33405944 DOI: 10.2214/ajr.20.24378] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND. Extensive lymphatic malformations (LMs) may cause substantial morbidity. The mammalian target of rapamycin (mTOR) inhibitor sirolimus shows promise for treating vascular anomalies, although response assessment is not standardized. OBJECTIVE. The purpose of this study was to retrospectively characterize changes seen on MRI of children with extensive LMs treated with sirolimus. METHODS. Twenty-five children treated with sirolimus for extensive LMs were included. Baseline MRI was defined as the MRI examination performed closest to therapy initiation; follow-up MRI was defined as the most recent MRI examination performed while the patient was receiving therapy. Two pediatric radiologists independently determined MRI lesion volume by tracing lesion contours on all slices (normalized to patient body surface area expressed in square meters) and determined signal by placing an ROI on the dominant portion of the lesions (normalized to CSF signal) on baseline and follow-up T2-weighted MRI sequences. Interreader agreement was determined, and values were averaged for further analysis. Volume and signal changes were compared with patient, lesion, and treatment characteristics. RESULTS. The mean (± SD) interval between initiation of sirolimus treatment and follow-up MRI was 22.1 ± 13.8 months. The mean lesion volume index on baseline and follow-up MRI was 728 ± 970 and 345 ± 501 mL/m2, respectively (p < .001). Ninety-two percent of children showed a decrease in lesion volume index that was greater than 10% (mean volume change, -46.4% ± 28.2%). Volume change was inversely correlated with age (r = -0.466; p = .02). The mean volume change was -64.7% ± 25.4% in children younger than 2 years old versus -32.0% ± 21.6% in children 2 years old or older (p = .008). The mean volume change was -58.1% ± 24.0% for craniocervical lesions versus -35.5% ± 28.2% for lesions involving the trunk and/or extremities (p = .03). Mean lesion signal ratio on baseline and follow-up MRI was 0.81 ± 0.29 and 0.59 ± 0.26, respectively (p < .001). Mean signal ratio change was -23.8% ± 22.7%. Volume and signal changes were moderately correlated (r = 0.469; p = .02). Volume and signal changes were not associated with sex, lesion subtype, serum concentration of sirolimus, or the interval between sirolimus initiation and follow-up MRI (p > .05). Interreader agreement for volume index change was excellent (intraclass correlation coefficient, 0.983), and that for signal ratio change was moderate to good (intraclass correlation coefficient, 0.764). CONCLUSION. Sirolimus treatment of extensive LMs in children is associated with significant reductions in volume and signal on T2-weighted MRI. The decrease in volume is greater in younger children and craniocervical lesions. CLINICAL IMPACT. The results may facilitate development of standardized MRI-based criteria for assessing the response of vascular malformations to pharmacotherapy.
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28
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Ultrasound Evaluation of Pediatric Slow-Flow Vascular Malformations: Practical Diagnostic Reporting to Guide Interventional Management. AJR Am J Roentgenol 2020; 216:494-506. [PMID: 33356433 DOI: 10.2214/ajr.20.23338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE. This article reviews the ultrasound characteristics of pediatric slow-flow vascular malformations and underscores findings that significantly impact diagnosis and treatment. Key imaging features are discussed including lesion size, malformation location, morphology, and mimics. CONCLUSION. Ultrasound findings affect the management of slow-flow vascular malformations and should be emphasized in lesion diagnosis. Superficial, focal lesions with well-defined margins are ideal for ultrasound evaluation.
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29
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Mehrotra S, van Schaijik B, Boyes K, Bockett N, Brasch HD, Davis PF, Itinteang T, Tan ST. Expression of Cathepsins B, D, and G in Microcystic Lymphatic Malformation. Lymphat Res Biol 2020; 19:347-354. [PMID: 33337924 DOI: 10.1089/lrb.2020.0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background: This study investigated the expression and localization of cathepsins B, D, and G in relationship to the embryonic stem cell (ESC)-like population we have previously identified in microcystic lymphatic malformation (mLM). Methods and Results: Immunohistochemical staining demonstrated expression of cathepsins B, D, and G in cervicofacial mLM tissue samples from 11 patients. Immunofluorescence staining of two representative mLM samples showed localization of cathepsins B and D to the OCT4+ and the c-MYC+ cells on the endothelium of lesional vessels and the stroma, while cathepsin G was localized to the OCT4+/tryptase+ cells within the stroma. Transcript expression of cathepsins B, D, and G was confirmed using reverse transcription quantitative polymerase chain reaction (RT-qPCR; n = 5). Western blotting (n = 3) performed on the mLM tissue samples revealed protein expression of cathepsins B and D, which were demonstrated to be enzymatically active using enzymatic activity assays. Conclusion: This study demonstrated expression of cathepsins B and D by the ESC-like cells on the endothelium of lesional vessels and the stroma, while cathepsin G was localized to the OCT4+ phenotypic mast cells within the stroma of mLM.
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Affiliation(s)
| | | | - Kendra Boyes
- Gillies McIndoe Research Institute, Wellington, New Zealand
| | | | - Helen D Brasch
- Gillies McIndoe Research Institute, Wellington, New Zealand
| | - Paul F Davis
- Gillies McIndoe Research Institute, Wellington, New Zealand
| | | | - Swee T Tan
- Gillies McIndoe Research Institute, Wellington, New Zealand.,Wellington Regional Plastic, Maxillofacial and Burns Unit, Hutt Hospital, Wellington, New Zealand.,Department of Surgery, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, Victoria, Australia
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30
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Kim HW, Yoo SY, Oh S, Jeon TY, Kim JH. Ultrasonography of Pediatric Superficial Soft Tissue Tumors and Tumor-Like Lesions. Korean J Radiol 2020; 21:341-355. [PMID: 32090527 PMCID: PMC7039727 DOI: 10.3348/kjr.2019.0343] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 10/29/2019] [Indexed: 01/29/2023] Open
Abstract
Ultrasonography (US) is usually the first imaging examination performed to evaluate palpable or visible superficial soft tissue lesions that are common in children. Although clinical assessments, such as age at presentation, clinical course, and overlying skin discoloration, are important for the differentiation of pediatric soft tissue lesions, US allows a specific diagnosis of some typical benign lesions and helps in guiding further investigation since it provides detailed information about the lesion location, characterization including solid versus cystic, vascularity, and compressibility. Therefore, sufficient knowledge of the normal anatomy, proper ultrasonographic techniques, and the imaging findings of common and uncommon soft tissue lesions in children are crucial for accurate assessment and management of patients. In this article, we review the techniques and imaging findings focusing on the ultrasonographic features of a variety of superficial soft tissue lesions detected in children.
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Affiliation(s)
- Hae Won Kim
- Department of Radiology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea.,Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - So Young Yoo
- Department of Radiology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea.
| | - Saelin Oh
- Department of Radiology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea.,Department of Radiology, Korea University Medical Center, Seoul, Korea
| | - Tae Yeon Jeon
- Department of Radiology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Ji Hye Kim
- Department of Radiology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
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31
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Szhafir I, Teplisky D, Lambert G, Affranchino N, Weller S, Imizcoz FL, Corbetta JP, Sierre S. The Impact of Adjuvant Sirolimus Therapy in the Surgical Management of Scrotal Slow-Flow Vascular Malformations. Urology 2020; 147:270-274. [PMID: 32920033 DOI: 10.1016/j.urology.2020.08.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/26/2020] [Accepted: 08/30/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To describe the effects of oral sirolimus administered before and after surgical resection of slow-flow vascular malformations of the scrotum in pediatric patients. METHODS Retrospective review of 3 patients presenting with complex lymphatic-venous malformations of the scrotum who received adjuvant oral sirolimus 3 months before and 3 months after surgical resection. Demographic data, clinical course, imaging findings, and management strategies were reviewed for each patient. RESULTS In each of the 3 patients, there was a significant volume reduction of the lesion within the 3 months after initial dose of sirolimus. Scarce lymphatic leakage during and after surgery was reported, associated with an adequate wound healing. Two years after the last postsurgical dose of sirolimus, all patients remain asymptomatic without any lymphatic leakage or lesion recurrence. CONCLUSION Combined lymphatic-venous vascular malformations of the male genitalia are rare but associated with high morbidity and challenging treatment options. Pre- and postsurgical adjuvant treatment with oral sirolimus seems to be a promising therapeutic option that provides reduction of the lesion size before surgery and improvement of postsurgical recovery and wound healing.
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Affiliation(s)
- Ioná Szhafir
- Department of Interventional Radiology, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina
| | - Darío Teplisky
- Department of Interventional Radiology, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina
| | - Gonzalo Lambert
- Department of Interventional Radiology, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina
| | - Nicolás Affranchino
- Department of Clinical Pediatrics, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina
| | - Santiago Weller
- Department of Urology, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina
| | | | - Juan Pablo Corbetta
- Department of Urology, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina
| | - Sergio Sierre
- Department of Interventional Radiology, Hospital de Pediatría Prof. J. P. Garrahan, Buenos Aires, Argentina.
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32
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Cronan J, Gill AE, Shah JH, Hawkins CM. The Role of Interventional Radiologists in the Treatment of Congenital Lymphatic Malformations. Semin Intervent Radiol 2020; 37:285-294. [PMID: 32773954 DOI: 10.1055/s-0040-1713446] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Lymphatic malformations are low-flow vascular malformations that are typically apparent in the pediatric population and can cause significant functional limitations and effects on quality of life. While surgical resection has historically been the mainstay of therapy, percutaneous sclerotherapy has garnered increasing popularity due to its efficacy and low complication rates. The role of interventional radiology in the multidisciplinary management of these often complex malformations requires thorough understanding of the disease process. This article will review the pathophysiology, clinical presentation, imaging workup, and management options of lymphatic malformations. Special attention will be devoted to available sclerosants, the mammalian target of rapamycin inhibitor sirolimus, and complex lymphatic anomalies.
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Affiliation(s)
- Julie Cronan
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Anne E Gill
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.,Division of Pediatric Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Jay H Shah
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.,Division of Pediatric Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - C Matthew Hawkins
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.,Division of Pediatric Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
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Abstract
Recent advances in imaging have allowed a better understanding of imaging features and classification of vascular anomalies. This article focuses on imaging of vascular malformations; describes the updated classification system and clinical and imaging characteristics of the different subtypes; and discusses the associated syndromes, differential diagnosis, and available treatment options, including the role of imaging in management.
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34
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Spectrum of Imaging Manifestations of Vascular Malformations and Tumors Beyond Childhood: What General Radiologists Need to Know. Radiol Clin North Am 2020; 58:583-601. [PMID: 32276705 DOI: 10.1016/j.rcl.2020.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Vascular anomalies encompass a collection of diagnoses that differ greatly in terms of clinical presentation, natural history, imaging findings, and management. The purpose of this article is to review diagnostic imaging findings of vascular malformations and vascular tumors, excluding the central nervous system, that occur beyond childhood. A widely accepted classification system created by the International Society for the Study of Vascular Anomalies provides a framework for this review, focusing on the entities most likely to be encountered by general radiologists, although several rare but clinically important entities are also reviewed.
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35
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Guo L, Wu C, Li X, Song D, Sun J, Zhang Y. Simulated Angiography Using a Bleomycin Mixture for Sclerotherapy of Lymphatic Malformations. Front Pediatr 2020; 8:563517. [PMID: 33102408 PMCID: PMC7546802 DOI: 10.3389/fped.2020.563517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/19/2020] [Indexed: 11/13/2022] Open
Abstract
Objective: Repeat sclerotherapy of lymphatic malformations (LMs) is challenging. Accordingly, the aim of the present article is to describe a simulated angiography technique-a new method of bleomycin infusion for the treatment of LMs to achieve better outcome(s) in fewer sessions. Materials and Methods: A retrospective analysis of information housed in a prospectively collected LM database was performed. Patients with LM, revealed on imaging examination and treated using a simulated angiography technique with a bleomycin mixture, were included in the study. Visual evaluation and imaging examinations were performed to evaluate clinical improvement. Results: A total of 151 patients (82 male, 69 female; mean age, 28.29 months [range 1 month-12 years]) with LMs were included in this study. Excellent visual and radiological resolution was observed in 77% (117/151) of lesions, 17% (26/151) had significant improvement, and 8 patients exhibited a slight response. The number of procedures per patient varied from 1 to 5, and the average number of treatment sessions for LM was 1.34. Side effects included skin erythema at the injection site, local swelling, mild tenderness, and fever, which were controlled by oral antipyretics. No serious side effects were observed. Conclusions: Simulated angiography using a bleomycin mixture for sclerotherapy of LMs in children was feasible and demonstrated good effect with little trauma and less time per treatment.
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Affiliation(s)
- Lei Guo
- Department of Vascular Anomalies and Interventional Radiology, Qilu Children's Hospital of Shandong University, Jinan, China
| | - Changhua Wu
- Department of Vascular Anomalies and Interventional Radiology, Qilu Children's Hospital of Shandong University, Jinan, China
| | - Xiaoyan Li
- Department of Ultrasound, Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Dan Song
- Department of Vascular Anomalies and Interventional Radiology, Qilu Children's Hospital of Shandong University, Jinan, China
| | - Jiali Sun
- Department of Vascular Anomalies and Interventional Radiology, Qilu Children's Hospital of Shandong University, Jinan, China
| | - Yunkui Zhang
- Department of Vascular Anomalies and Interventional Radiology, Qilu Children's Hospital of Shandong University, Jinan, China
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36
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Mamlouk MD, Danial C, McCullough WP. Vascular anomaly imaging mimics and differential diagnoses. Pediatr Radiol 2019; 49:1088-1103. [PMID: 31152211 DOI: 10.1007/s00247-019-04418-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/04/2019] [Accepted: 04/22/2019] [Indexed: 11/27/2022]
Abstract
Vascular anomalies can be correctly diagnosed in the majority of instances using the combination of clinical history, physical examination and imaging. In certain cases, the clinical work-up may be inconclusive or unavailable to the radiologist, and the imaging findings can be nonspecific, yielding more than one possible diagnosis. In this pictorial essay, we discuss diagnoses that can mimic vascular anomalies and highlight key differentiating imaging features.
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Affiliation(s)
- Mark D Mamlouk
- Department of Radiology, The Permanente Medical Group,, Kaiser Permanente Medical Center Santa Clara, 700 Lawrence Expy, Santa Clara, CA, 95051, USA.
- Department of Radiology and Biomedical Imaging,, University of California, San Francisco, CA, USA.
| | - Christina Danial
- Department of Dermatology,, Stanford University, Redwood City, CA, USA
| | - William P McCullough
- Department of Radiology, The Permanente Medical Group,, Kaiser Permanente Medical Center Santa Clara, 700 Lawrence Expy, Santa Clara, CA, 95051, USA
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37
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Sahu SA, Goyal A, Marwah S, Dave A, Moumita De, Gupta D. Reply - Management of vascular anomalies: Review of institutional management algorithm. Indian J Plast Surg 2018; 51:255-257. [PMID: 30505105 PMCID: PMC6219356 DOI: 10.4103/ijps.ijps_73_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Shamendra Anand Sahu
- Department of Radio Diagnosis, All India Institute of Medical Sciences, New Delhi, India
| | - Ankur Goyal
- Department of Plastic, Reconstructive and Burn Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Shruti Marwah
- Department of Plastic, Reconstructive and Burn Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Aniket Dave
- Department of Plastic, Reconstructive and Burn Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Moumita De
- Department of Plastic, Reconstructive and Burn Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Deepti Gupta
- Department of Plastic, Reconstructive and Burn Surgery, All India Institute of Medical Sciences, New Delhi, India
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38
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Magnetic resonance imaging of the pediatric mediastinum. Pediatr Radiol 2018; 48:1209-1222. [PMID: 30078043 DOI: 10.1007/s00247-018-4112-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/26/2017] [Accepted: 03/11/2018] [Indexed: 12/28/2022]
Abstract
The mediastinum, the central anatomical space of the thorax, is divided by anatomical landmarks but not by physical boundaries. The mediastinum is a conduit, a space through which cranial nerves, important nerve branches, the sympathetic chain, vascular structures, and visceral structures, the trachea and esophagus pass. This arrangement allows contiguous extension or communication of disease along facial planes and through potential spaces to and from the head and neck or cervical spine, to and from the superior mediastinum, between superior and inferior mediastinal levels, and between inferior mediastinal spaces into the intra- and retroperitoneal spaces. Magnetic resonance imaging (MRI) of the mediastinum in children poses technical challenges, in particular cardiac and respiratory motion, and diagnostic challenges, including a broad range of tissue types and possible diagnoses. In this paper we review mediastinal anatomy, MRI sequences and protocol choices and include a short discussion of features and MRI findings of some of the congenital and acquired pathologies that are most often encountered in the pediatric mediastinum.
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39
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Anomalies vasculaires bénignes agressives de l’enfant et de l’adolescent. Bull Cancer 2018; 105:610-625. [DOI: 10.1016/j.bulcan.2018.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 01/15/2018] [Accepted: 01/20/2018] [Indexed: 01/11/2023]
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40
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Abstract
Vascular malformations are classified primarily according to their flow characteristics, slow flow (lymphatic and venous) or fast flow (arteriovenous). They can occur anywhere in the body but have a unique presentation when affecting the female pelvis. With a detailed clinical history and the proper imaging studies, the correct diagnosis can be made and the best treatment can be initiated. Lymphatic and venous malformations are often treated with sclerotherapy while arteriovenous malformations usually require embolization. At times, surgical intervention of vascular malformations or medical management of lymphatic malformations has been implemented in a multidisciplinary approach to patient care. This review presents an overview of vascular malformations of the female pelvis, their clinical course, diagnostic studies, and treatment options.
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Affiliation(s)
- Aparna Annam
- Division of Interventional Radiology, Department of Radiology, University of Colorado, Children's Hospital Colorado, Aurora, Colorado
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41
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Caro-Domínguez P, Navarro OM. Imaging appearances of soft-tissue tumors of the pediatric foot: review of a 15-year experience at a tertiary pediatric hospital. Pediatr Radiol 2017; 47:1555-1571. [PMID: 29075896 DOI: 10.1007/s00247-017-3940-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/24/2017] [Accepted: 06/30/2017] [Indexed: 01/27/2023]
Abstract
Tumors of the foot are rare in children. In this review the authors illustrate radiographic, sonographic and MR imaging findings of foot soft-tissue tumors in children based on all cases presenting at a tertiary pediatric hospital during the 15-year period of 1999-2014. Among these cases there were 155 tumors of the foot - 72 of the bones and 83 of the soft tissues. Vascular malformations, fibromatosis and sarcomas were respectively the most frequent benign, intermediate and malignant soft-tissue tumors. Some tumors showed specific imaging findings. In imaging investigations, ultrasound can be used as the first imaging modality for diagnostic workup of most lesions because it is noninvasive, low-cost and readily available, and can confirm the presence of the mass and evaluate cystic components, especially in young children who would otherwise require sedation for MR imaging. MR imaging is the reference standard technique because of its high tissue contrast, which allows for detection and characterization of soft-tissue and bone abnormalities. MR imaging is useful as the first imaging modality in select cases, including those with high suspicion of malignancy, very large lesions or pre-treatment lesions. Recognition of some typical imaging findings in pediatric soft-tissue foot tumors is helpful to establish diagnosis and facilitate patient management.
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Affiliation(s)
- Pablo Caro-Domínguez
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada.,Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Ave., Toronto, ON, M5G 1X8, Canada.,Department of Diagnostic Imaging, Hospital San Juan de Dios, Health Time Group, Córdoba, Andalucía, Spain
| | - Oscar M Navarro
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada. .,Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Ave., Toronto, ON, M5G 1X8, Canada.
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42
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Mamlouk MD, Nicholson AD, Cooke DL, Hess CP. Tips and tricks to optimize MRI protocols for cutaneous vascular anomalies. Clin Imaging 2017. [DOI: 10.1016/j.clinimag.2017.05.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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43
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Yamaki T, Sasaki Y, Hasegawa Y, Osada A, Konoeda H, Hamahata A, Nozaki M, Sakurai H. Percutaneous ultrasound-guided sclerotherapy with polidocanol microfoam for lymphatic malformations. J Vasc Surg Venous Lymphat Disord 2017; 5:707-714. [DOI: 10.1016/j.jvsv.2017.03.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/28/2017] [Indexed: 01/22/2023]
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44
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Takita H, Takeshita T, Shimono T, Tanaka H, Iguchi H, Hashimoto S, Kuwae Y, Ohsawa M, Miki Y. Cystic lesions of the parotid gland: radiologic-pathologic correlation according to the latest World Health Organization 2017 Classification of Head and Neck Tumours. Jpn J Radiol 2017; 35:629-647. [DOI: 10.1007/s11604-017-0678-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/16/2017] [Indexed: 12/16/2022]
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45
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Johnson CM, Navarro OM. Clinical and sonographic features of pediatric soft-tissue vascular anomalies part 2: vascular malformations. Pediatr Radiol 2017; 47:1196-1208. [PMID: 28779187 DOI: 10.1007/s00247-017-3906-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/19/2017] [Accepted: 05/11/2017] [Indexed: 12/11/2022]
Abstract
Vascular malformations are a heterogeneous group of entities, many of which present in the pediatric age group. Sonography plays a major role in the management of children with these vascular anomalies by providing information that helps in diagnosing them, in assessing lesion extent and complications, and in monitoring response to therapy. The interpretation of sonographic findings requires correlation with clinical findings, some of which can be easily obtained at the time of scanning. This has to be combined with the use of appropriate nomenclature and the most updated classification in order to categorize these patients into the appropriate management pathway. Some vascular malformations are part of combined vascular anomalies or are associated with syndromes that include other disorders, frequently limb overgrowth, and these are now being reclassified based on their underlying genetic mutation. Sonography has limitations in the evaluation of some vascular malformations and in these cases MR imaging might be considered the imaging modality of choice, particularly for lesions that are large, that involve multiple compartments or are associated with other soft-tissue and bone abnormalities. In this article, which is part 2 of a two-part series, the authors review the most relevant clinical and sonographic features of arteriovenous, capillary, venous and lymphatic malformations as well as vascular malformations that are part of more complex conditions or associated with syndromes, including Parkes-Weber syndrome, phosphatase and tensin homologue (PTEN) hamartoma tumor syndromes, Klippel-Trénaunay syndrome, CLOVES (congenital lipomatous overgrowth, vascular malformations, epidermal nevi and skeletal anomalies) syndrome, fibro-adipose vascular anomaly and Proteus syndrome.
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Affiliation(s)
- Craig M Johnson
- Division of Interventional Radiology, Department of Radiology, Nemours Children's Hospital, Orlando, FL, USA
| | - Oscar M Navarro
- Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Ave., Toronto, ON, M5G 1X8, Canada.
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada.
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46
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Gabeff R, Lorette G, Herbreteau D, le Touze A, Goga D, Maruani A. Malformations lymphatiques kystiques superficielles. Ann Dermatol Venereol 2017; 144:389-397. [DOI: 10.1016/j.annder.2017.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 01/03/2017] [Accepted: 01/12/2017] [Indexed: 01/22/2023]
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47
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Oliver ER, Coleman BG, DeBari SE, Victoria T, Looney DM, Horii SC, Moldenhauer JS, Langer JE, Howell LJ, Pawel BR, Adzick NS. Fetal Lymphatic Malformations: More Variable Than We Think? JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2017; 36:1051-1058. [PMID: 28127788 DOI: 10.7863/ultra.16.04071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/08/2016] [Indexed: 06/06/2023]
Abstract
Lymphatic malformations are benign lesions that result from abnormal development of the lymphatic and venous systems. These lesions may be detected during routine prenatal ultrasound screening, and typically demonstrate imaging findings of a multiseptate cystic lesion lacking solid components, vascularity, and calcifications. We report 73 cases of prenatally detected lymphatic malformations and describe greater variability in their prenatal sonographic appearance than previously reported, including purely cystic lesions and mixed cystic and solid lesions with calcifications. Appreciation of this increased variability is important in providing accurate prenatal diagnosis, counseling, and management.
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Affiliation(s)
- Edward R Oliver
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Beverly G Coleman
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Suzanne E DeBari
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Teresa Victoria
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Devon M Looney
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Steven C Horii
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Julie S Moldenhauer
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Jill E Langer
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lori J Howell
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Bruce R Pawel
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Pathology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - N Scott Adzick
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Fetal Diagnosis and Treatment, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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48
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Intraabdominal Lymphatic Malformations: Pearls and Pitfalls of Diagnosis and Differential Diagnoses in Pediatric Patients. AJR Am J Roentgenol 2017; 208:637-649. [DOI: 10.2214/ajr.16.17008] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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49
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50
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Reply to “Imaging Appearance of Lymphatic Malformations”. AJR Am J Roentgenol 2017; 208:W30. [DOI: 10.2214/ajr.16.17128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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