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Foster M, Roy A, Kumar G. Large birth mark and unilateral swelling of the lower extremity in a young teenager. BMJ Case Rep 2024; 17:e258892. [PMID: 38702071 PMCID: PMC11085769 DOI: 10.1136/bcr-2023-258892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2024] Open
Abstract
We describe an early adolescent male who was diagnosed with vascular malformation associated with unilateral limb overgrowth based on the clinical findings of a persistent port-wine stain since birth and gradually progressing right lower limb oedema since early childhood. Clinicians should keep in mind to clinically evaluate such malformations in detail, as well as contemplate genetic testing in patients presenting with a large port-wine stain at birth, particularly if well demarcated and lateral in a lower extremity.
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Affiliation(s)
- Michael Foster
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Aparna Roy
- Paediatrics, Case Western Reserve University Hospital, Cleveland, Ohio, USA
| | - Gurinder Kumar
- Paediatrics, Case Western Reserve University Hospital, Cleveland, Ohio, USA
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Mohamed A, Chin YF, Farah M, Mahmalji W. Vesical Haemangioma in Klippel-Trenaunay-Weber Syndrome: A Clinical Case Report. Cureus 2023; 15:e49952. [PMID: 38179354 PMCID: PMC10765560 DOI: 10.7759/cureus.49952] [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] [Accepted: 12/05/2023] [Indexed: 01/06/2024] Open
Abstract
Klippel-Trenaunay-Weber (KTW) syndrome, a rare vascular disorder, often presents with cutaneous capillary malformations and soft tissue hypertrophy. However, urinary tract involvement in the form of vesical haemangiomas is a seldom-encountered clinical condition. We present a case of a 37-year-old male with KTW syndrome who exhibited recurrent gross haematuria, prompting clinical evaluation. Initial diagnostic assessments revealed erythematous changes in the bladder, consistent with haemangiomas. Despite an initial biopsy and diathermy, the patient's symptoms recurred, leading to a subsequent management strategy involving laser fulguration. This case underscores the significance of recognizing cutaneous haemangiomas as potential indicators of urinary tract involvement in KTW syndrome and highlights the challenges in managing vesical haemangiomas, where a multidisciplinary approach is essential for optimal care.
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Affiliation(s)
| | - Yew Fung Chin
- Urology, Wye Valley NHS Trust, Hereford, GBR
- General Surgery, Royal Shrewsbury Hospital, Shrewsbury, GBR
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Gică N, Dumitru A, Panaitescu AM, Gică C, Peltecu G, Ciobanu AM, Bălănescu L. Prenatal Ultrasound Diagnosis of Klippel-Trenaunay Syndrome. Diagnostics (Basel) 2023; 13:3400. [PMID: 37998536 PMCID: PMC10670238 DOI: 10.3390/diagnostics13223400] [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: 09/10/2023] [Revised: 10/11/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
Klippel-Trenaunay syndrome (KTS) is a very rare vascular malformation syndrome also referred to as a capillary-lymphatic-venous malformation with unknown aetiology. The aim of our paper is to highlight interesting images, regarding a rare case of foetal Klippel-Trenaunay syndrome diagnosed prenatally in our department and confirmed postnatally with a favourable evolution during the gestation and neonatal periods. This case was diagnosed at 26 weeks gestation and characterised through ultrasound by the presence of superficial multiple cystic structures of different sizes spreading over the left leg with hemihypertrophy and reduced mobility. The cystic lesions were spreading to the left buttock and the pelvic area. The right leg and upper limbs had normal appearance with good mobility. There were no signs of hyperdynamic circulation or foetal anaemia, but mild polyhydramnios was associated. The ultrasound findings were confirmed postnatally, the left leg presented multiple cystic lesions and port wine stains, and there was hypertrophy and fixed position, with favourable evolution at 6 months of life, when the size of the lesions began to decrease and the mobility of the leg improved.
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Affiliation(s)
- Nicolae Gică
- Obstetrics and Gynecology Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.G.); (C.G.); (G.P.); (A.M.C.)
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital Bucharest, 020021 Bucharest, Romania;
| | - Andreea Dumitru
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital Bucharest, 020021 Bucharest, Romania;
| | - Anca Maria Panaitescu
- Obstetrics and Gynecology Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.G.); (C.G.); (G.P.); (A.M.C.)
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital Bucharest, 020021 Bucharest, Romania;
| | - Corina Gică
- Obstetrics and Gynecology Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.G.); (C.G.); (G.P.); (A.M.C.)
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital Bucharest, 020021 Bucharest, Romania;
| | - Gheorghe Peltecu
- Obstetrics and Gynecology Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.G.); (C.G.); (G.P.); (A.M.C.)
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital Bucharest, 020021 Bucharest, Romania;
| | - Anca Marina Ciobanu
- Obstetrics and Gynecology Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.G.); (C.G.); (G.P.); (A.M.C.)
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital Bucharest, 020021 Bucharest, Romania;
| | - Laura Bălănescu
- Department of Pediatric Surgery and Anaesthesia and Intensive Care, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
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Patel NC, Hussain S, Fuad U, Spurrier E. Novel Management of a Femoral Fracture in Klippel-Trenaunay Syndrome. Cureus 2022; 14:e26652. [PMID: 35949790 PMCID: PMC9357259 DOI: 10.7759/cureus.26652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2022] [Indexed: 11/29/2022] Open
Abstract
Klippel-Trenaunay syndrome (KTS) is a rare congenital disorder with a clinical triad of capillary malformations, vascular abnormalities, and bone/soft tissue hypertrophy. This is the first case of closed femoral shaft fracture in a patient with KTS managed by flexible intramedullary nails. A 34-year-old patient sustained a right femoral mid-shaft spiral fracture after slipping on the grass. Due to a very narrow femur and large venous malformations, nail or plate fixation was impossible. Surgery was conducted using flexible intramedullary (TENS) nails with good reduction but significant bleeding which was controlled with tranexamic acid and CELOX. The patient required 4 units of red blood cells, 3 units of fresh frozen plasma, and 900 mL of cell saver intraoperatively with a further 2 units of RBC post-op. Fracture union was achieved 14 months after the initial fracture with additional pulsed ultrasound therapy. Bleeding from vascular malformations during surgery makes operative management challenging in KTS patients. Previous studies have reported a variety of management strategies to achieve fracture fixation and union including IM nailing, plate fixation, and external fixators, but encountered significant bleeding of up to 10 units and 15 units, respectively. Ultrasound therapy has been utilized as a useful adjunct in lower limb fracture with delayed therapy. Management of fractures in patients affected by KTS is extremely challenging despite extensive workup and planning to evaluate the optimal fixation method and explore strategies to reduce the risk of intra-operative bleeding. Management strategies should be tailored to the patient with close follow-up to assess fracture union.
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Cucinella G, Di Buono G, Geraci G, Ricupati F, Gullo G, Maienza E, Romano G, Bonventre G, Amato G, Romano G, Buscemi S, Agrusa A. Uterine Involvement in Klippel–Trenaunay Syndrome: A Rare But Relevant Event. Review of the Literature. Front Surg 2022; 9:893320. [PMID: 35647021 PMCID: PMC9133495 DOI: 10.3389/fsurg.2022.893320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/18/2022] [Indexed: 01/19/2023] Open
Abstract
Introduction Klippel–Trenaunay syndrome (KTS) is a rare vascular congenital disorder characterized by the classical triad of port-wine stains, abnormal growth of soft tissues and bones, and vascular malformations. The involvement of the genitourinary tract and of the uterus in particular is extremely infrequent but relevant for possible consequences. Methods We performed an extensive review of the literature using the Pubmed, Scopus and ISI web of knowledge database to identify all cases of KTS with uterine involvement. The search was done using the MeSH term “Klippel–Trenaunay syndrome” AND “uterine” OR “uterus.” We considered publications only in the English language with no limits of time. We selected a total of 11 records of KTS with uterine involvement, including those affecting pregnant women. Results Klippel–Trenaunay syndrome was described for the first time in the year 1900 in two patients with hemangiomatous lesions of the skin associated with varicose veins and asymmetric soft tissue and bone hypertrophy. Uterine involvement is a rare condition and can cause severe menorrhagia. Diagnosis is based on physical signs and symptoms. CT scans and MRI are first-choice test procedures to evaluate both the extension of the lesion and the infiltration of deeper tissues before treatment. The management of Klippel–Trenaunay syndrome should be personalized using careful diagnosis, prevention and treatment of complications. Conclusion Klippel–Trenaunay syndrome is a rare vascular malformation with a wide variability of manifestations. There are no univocal and clear guidelines that suggest the most adequate monitoring of the possible complications of the disease. Treatment is generally conservative, but in case of recurrent bleeding, surgery may be needed.
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Affiliation(s)
- Gaspare Cucinella
- Obstetrics and Gynecology, “Villa Sofia Cervello” Hospital, University of Palermo, Palermo, Italy
| | - Giuseppe Di Buono
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
- Correspondence: Giuseppe Di Buono
| | - Girolamo Geraci
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Federica Ricupati
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giuseppe Gullo
- Obstetrics and Gynecology, “Villa Sofia Cervello” Hospital, University of Palermo, Palermo, Italy
| | - Elisa Maienza
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giorgio Romano
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giulia Bonventre
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giuseppe Amato
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giorgio Romano
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Salvatore Buscemi
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Antonino Agrusa
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
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Ivanitskaya O, Andreeva E, Odegova N. Prenatal diagnosis of Klippel-Trenaunay syndrome: Series of four cases and review of the literature. ULTRASOUND : JOURNAL OF THE BRITISH MEDICAL ULTRASOUND SOCIETY 2020; 28:91-102. [PMID: 32528545 DOI: 10.1177/1742271x19880327] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 09/08/2019] [Indexed: 01/19/2023]
Abstract
Klippel-Trenaunay syndrome is a rare disease with a classic triad of port wine stains, varicose veins, and bony and soft tissue hypertrophy of an extremity. The quality of life in these patients is significantly affected, making the prenatal diagnosis of Klippel-Trenaunay syndrome important. We present four prenatally diagnosed cases of this anomaly with a unique case of ectrodactyly of the hand in foetus with Klippel-Trenaunay syndrome. Such a combination has not been previously reported prenatally. A review of the literature for similar cases is also presented.
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Affiliation(s)
- Olga Ivanitskaya
- Medical Genetic Department, Moscow Regional Research Institute of Obstetrics and Gynecology, Moscow, Russian Federation
| | - Elena Andreeva
- Medical Genetic Department, Moscow Regional Research Institute of Obstetrics and Gynecology, Moscow, Russian Federation
| | - Natalia Odegova
- Medical Genetic Department, Moscow Regional Research Institute of Obstetrics and Gynecology, Moscow, Russian Federation
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Zhimei CBS, Shuai ZP, Ping WBS, Hong ZBS, Zhijing WBS, Shi ZBS. Use of Ultrasound and Digital Subtraction Angiography for Arteriovenous Malformations in a Patient with Klippel-Trenaunay-Weber Syndrome. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY 2020. [DOI: 10.37015/audt.2020.200009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Nguyen HL, Bonadurer GF, Tollefson MM. Vascular Malformations and Health-Related Quality of Life: A Systematic Review and Meta-analysis. JAMA Dermatol 2019; 154:661-669. [PMID: 29562060 DOI: 10.1001/jamadermatol.2018.0002] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Importance Patients with vascular malformations (VAMs) and vascular overgrowth syndromes have lower health-related quality of life (HRQoL) attributable to social stigmatization, poor mental health, severity, and pain. However, the factors that contribute to this decreased HRQoL are not clear. Objective To perform a systematic review and meta-analysis of studies that used validated HRQoL instruments to compare the HRQoL of persons with VAMs with the US general population. Data Sources A comprehensive search was performed in MEDLINE, Embase, PsycINFO, CINAHL, and Scopus from 1946 to March 31, 2017, with the consultation of an experienced librarian. Study Selection All VAM studies with validated HRQoL instruments published in the English language were included. Case reports, review articles, non-English-language publications, and studies about the development of new HRQoL instruments were not included. Data Extraction and Synthesis Two reviewers assessed studies' eligibility and the risk of bias and performed data extraction. The meta-analysis was performed using the random-effects model. Comparisons of means were performed using the unpaired, 2-sample t test. Main Outcomes and Measures The outcome was HRQoL. Results Eleven studies met the inclusion criteria for a total of 692 patients with VAMs. Six studies (320 patients) were included in the meta-analysis, whereas 5 studies were included in the qualitative analysis (372 patients). Those with VAMs had lower 36-Item Short-Form Health Survey scores in bodily pain (mean difference, -11.87; 95% CI, -21.45 to -2.29; I2 = 92%; P = .02) and mental health (mean difference, -6.04; 95% CI, -11.55 to -0.52; I2 = 83%; P = .03) compared with the US general population. Conclusions and Relevance Patients with VAMs had increased pain and psychosocial distress compared with the US general population. Pain and psychological morbidity are associated with poorer HRQoL and may serve as indicators for quality of life.
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Affiliation(s)
- Henry L Nguyen
- Department of Dermatology, Mayo Clinic, Rochester, Minnesota
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Ishikawa K, Yamamoto Y, Funayama E, Furukawa H, Sasaki S. Wound-Healing Problems Associated with Combined Vascular Malformations in Klippel-Trenaunay Syndrome. Adv Wound Care (New Rochelle) 2019; 8:246-255. [PMID: 31832274 DOI: 10.1089/wound.2018.0835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 09/18/2018] [Indexed: 01/19/2023] Open
Abstract
Significance: In Klippel-Trenaunay syndrome (KTS), management of a wound in the affected limb can be difficult because of the underlying vascular malformations present. This review describes the characteristics of KTS with wound complications in light of the genetic and molecular mechanisms of the disease. Recent Advances: KTS is a slow-flow combined vascular malformation characterized by the triad of capillary malformation, venous malformation with or without lymphatic malformation, and limb overgrowth. KTS is encompassed within the phosphatidylinositol-4,5-bisphosphate3-kinase catalytic subunit alpha (PIK3CA)-related overgrowth spectrum (PROS), having recently been linked to activating mutations in the PIK3CA gene. This clearly has implications for both molecular diagnosis and potential treatment strategies for the disease. Critical Issues: KTS should be distinguished from Parkes Weber syndrome, a fast-flow-type combined vascular malformation with limb overgrowth. Individualized management is needed for KTS and should be focused on the treatment of symptoms. Future Directions: Targeted therapies that inhibit the phosphoinositide 3-kinase signaling pathway are a potential treatment option for PROS.
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Affiliation(s)
- Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Furukawa
- Department of Plastic and Reconstructive Surgery, Aichi Medical University, Nagakute, Japan
| | - Satoru Sasaki
- Department of Plastic and Reconstructive Surgery, Center for Vascular Anomalies, Tonan Hospital, Sapporo, Japan
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Wen L, Zhang Y, Zhang L, Liu X, Wang P, Shen S, Hu C, Guo L, Jiang W, Sroka R, Wang X. Application of different noninvasive diagnostic techniques used in HMME-PDT in the treatment of port wine stains. Photodiagnosis Photodyn Ther 2019; 25:369-375. [PMID: 30625397 DOI: 10.1016/j.pdpdt.2019.01.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/27/2018] [Accepted: 01/04/2019] [Indexed: 01/21/2023]
Abstract
BACKGROUND Hematoporphyrin monomethyl ether photodynamic therapy (HMME-PDT) is an effective method for treating port wine stains (PWS). However, methods to evaluate the treatment of HMME-PDT for PWS effectively and objectively are lacking. OBJECTIVE This study aimed to describe the different noninvasive diagnostic techniques used in the evaluation of treatment response to HMME-PDT for PWS. METHODS Thirty-one lesions of 22 patients with PWS were treated with HMME-PDT. Four noninvasive diagnostic techniques including VISIA-CR™ system, dermoscopy, high-frequency ultrasound (HFUS), and laser speckle contrast imaging (LSCI) were used to obtain standard radiographic data on skin color, skin thickness, blood vessel morphology, blood vessel distribution, and blood perfusion from lesions and surrounding normal skin before and after HMME-PDT. RESULTS The standard image pattern of VISIA-CR™ system showed color change in the lesions of PWS after HMME-PDT. RBX red image of VISIA-CR™ system showed that erythema was highly aggregated even in invisible lesions at baseline but decreased after HMME-PDT. The erythema index reduced value d was related to the efficacy rating (γ = 0.631, P < 0.05). Dermoscopy showed that the number of spot-like and irregular linear vessels increased, which was correlated with the increase in clinical classification. After HMME-PDT, vascular rupture was observed by dermoscopy. The response rate of lesions with vascular rupture was 100.00% (20/20). Moreover, the response rate of lesions without vascular rupture was 63.64% (7/11). Vascular rupture sign was correlated with better efficacy (P < 0.05). HFUS showed that the dermis of PWS thickened and was arranged loosely with scattered linear hypoechoic signal. After HMME-PDT, the dermal layer of the lesions became thinner with a decreased linear hypoechoic signal. The response rate of the lesions with linear hypoechoic signal was 76.92% (10/13), and that without linear hypoechoic signal was 94.44% (17/18). The lesions without linear hypoechoic signal in the dermis showed better efficacy (P < 0.05). In some lesions, LSCI showed high blood perfusion signal in PWS lesions and blood perfusion reduction after HMME-PDT. CONCLUSION VISIA-CR™ system can be used to observe not only visible but also invisible lesions of PWS. Moreover, lesions fading after HMME-PDT can be described objectively by VISIA-CR™ system. Dermoscopy played an important role in the clinical classification of PWS, including assessing vascular injury after HMME-PDT, guiding the adjustment of therapeutic dose, and selecting the end point of treatment. Both HFUS and LSCI can be used to assist treatment response evaluation of HMME-PDT.
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Affiliation(s)
- Long Wen
- Shanghai Skin Disease Clinical College of Anhui Medical University, Shanghai Skin Disease Hospital, China
| | - Yunfeng Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Linglin Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaojing Liu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Peiru Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuzhan Shen
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chan Hu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lehang Guo
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China
| | - Wencai Jiang
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - Ronald Sroka
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China; Laser-Forschungslabor, LIFE-Center of University Hospital of LMU, Department of Urology, University of LMU, Munich, Germany
| | - Xiuli Wang
- Shanghai Skin Disease Clinical College of Anhui Medical University, Shanghai Skin Disease Hospital, China; Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China.
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Abstract
PURPOSE OF REVIEW This review provides an update of the classification in the classification of vascular anomalies since April 2014 at the International Society for the Study of Vascular Anomalies meeting in Melbourne, Australia. RECENT FINDINGS The reader will become familiar with how to diagnose the major vascular malformations, including capillary, venous, arteriovenous, and lymphatic and combinations thereof. In addition, vascular malformation syndromes, including those with overgrowth, will be clarified. SUMMARY Vascular malformations are common. Capillary malformations are now better understood through an updated classification. Verrucous hemangioma is truly a venulocapillary malformation that extends into the subcutis. PIK3Ca-Related Overgrowth Syndromes encompass Klippel-Trenaunay, Congenital Lipomatous Asymmetric Overgrowth of the Trunk with Lymphatic, Capillary, Venous, and Combined-Type Vascular Malformations, Epidermal Nevi, Scoliosis/Skeletal and Spinal Anomalies, Megalencephaly-Capillary Malformation-Polymicrogyria Syndrome (M-CAP), fibroadipose hyperplasia, and macrodactyly. Yet another syndrome should be highlighted: Capillary Malformation of the Lower Lip, Lymphatic Malformation of the Face and Neck, Asymmetry and Partial/Generalized Overgrowth. Knowledge of the genetic basis of vascular malformations will lead to future treatments.
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