KTWS (Klippel-Trenaunay-Weber syndrome): A systematic presentation of a rare disease.

BACKGROUND: Klippel-Trenaunay-Weber syndrome (KTWS) is a rare disease with a wide range of manifestations. KTWS is characterized by a clinical triad of varicosities of the extremities, cutaneous vascular malformations, and hypertrophy of soft tissues and long bones. The diagnosis is made clinically supplemented with magnetic resonance imaging and computed tomography. AIM: Hereby we aim to highlight the significance of the possible life-threatening first-time presentations associated with the GI system in previously undiagnosed KTWS patients. PATIENT: We report the case of a 47-year-old male with KTWS, who presented with various symptoms such as rectorrhagia since childhood, digestive problems and abnormal lateral vascular malformations of the left buttock which extended all the way to the leg, vascular malformations of the left fourth and fifth toes as well as soft tissue swelling of the left foot. There was no evidence of other clinical presentations. The patient was hospitalized with severe rectorrhagia and a hemoglobin level of 3/9. Physical examination revealed a blood pressure of 85/55 and pulse rate of 115. Ruptured aneurysm of the superior mesenteric artery was found on angiography and subsequently treated with embolization. Dermatologic evaluation showed pitting edema of the left leg and foot and multiple vascular lesions. Thus a diagnosis of KTWS was established. Pulsed dye laser therapy and compression bandage was performed for the patient. The patient's follow-up was done 3 months after discharge for which the patient was again consulted by a dermatologist and gastroenterologist. Lymphedema of the left leg had improved to a great extend so treatment with compression bandage was continued. Colonoscopy was repeated for the patient to evaluate and control possible active sources of bleeding, due to potential life-threating complications. RESULTS: According to previous findings, there have been few case reports of KTWS presenting with gastrointestinal manifestations, fewer of which have covered acute life-threatening bleedings associated with this system.

Recurrent hematuria involving urinary system with Klippel-Trenaunay syndrome: A case report.

RATIONALE: Klippel-Trenaunay syndrome (KTS) is a rare congenital venous malformation, it had been found to be caused by mutations of the phosphatidylinositol 4, 5-diphosphate 3-kinase catalytic subunit alpha (PIK3CA) gene. Currently KTS is defined as a triad of skin wine pigmented spots, varicose veins and malformations of the lower extremities, and hypertrophy of bone and soft tissue, involving urinary system up to 6% to 30%. When the urinary system is involved, KTS is often presented as painless massive gross hematuria. PATIENT CONCERNS: This article describes a woman who was hospitalized with painless massive gross hematuria. Physical examination revealed significant hypertrophy of the right lower limb with varicose veins, port-wine stains in the skin, and right perineal hemangiomatous changes with swelling. The patient was admitted to hospital 4 times for repeated hematuria and infection. DIAGNOSES: By physical examination, CT urography, ureteroscopy and cystoscopy, the patient was diagnosed to have Klippel-Trenaunay syndrome, involving the urinary system. INTERVENTIONS: The patient hematuria improved after multiple indwelling D-J tubes and anti-inflammatory treatment. OUTCOMES: The final symptoms of hematuria improved significantly, follow-up so far has not recurred. LESSONS: This case presents the possibility of painless gross hematuria with KTS. Most of patients can be improved by conservative treatment. Cystoscopic laser therapy is the preferred treatment for poor bleeding control. Cystectomy and nephrectomy should be considered when life-threatening.

Multiple Lymphaticovenular Anastomoses for Chyluria in Klippel-Trenaunay Syndrome.

ABSTRACT: Klippel-Trenaunay syndrome (KTS) is characterized by port-wine stains, mixed vascular malformations, and soft tissue and bone hypertrophy. Klippel-Trenaunay syndrome is occasionally complicated by chyluria, for which there is no effective treatment currently. We report a case of KTS complicated by intractable chyluria and hematuria due to a lymphatic-ureteral fistula. The patient was successfully treated with multiple lymphaticovenular anastomoses (LVAs).A 66-year-old woman with an enlarged left lower extremity since childhood was diagnosed with KTS. At 60 years of age, she developed chyluria (urine albumin, 2224 µg/mL) and hematuria. Lymphoscintigraphy showed a lymphatic-ureteral fistula near the ureterovesical junction. Conservative treatment was ineffective. She also developed left lower extremity lymphedema, which gradually worsened. Leg cellulitis and purulent pericarditis developed because of hypoalbuminemia (minimum serum albumin level, 1.3 g/dL).We performed 14 LVAs in 2 surgeries to reduce lymphatic fluid flow through the lymphatic-ureteral fistula. The chyluria and hematuria resolved soon after the second operation, and the urine albumin level decreased (3 µg/mL). After 28 months, she had no chyluria or hematuria recurrence and her serum albumin level improved (3.9 g/dL). Multiple LVAs can definitively treat chyluria caused by a lymphatic-ureteral fistula in patients with KTS.

The Prospective Natural History Study of Patients with Intractable Venous Malformation and Klippel-Trenaunay Syndrome to Guide Designing a Proof-of-Concept Clinical Trial for Novel Therapeutic Intervention.

Background: The natural history of venous malformation (VM) and Klippel-Trenaunay Syndrome (KTS) has not been quantitatively studied. To obtain benchmarks to guide designing clinical trials to assess safety and efficacy of novel drug candidates, the clinical course of the patients was followed for 6 months. Methods and Results: This is a multicenter prospective observational study evaluating the change rate in lesion volume from baseline with magnetic resonance images, as the primary endpoint. In addition, disease severities, performance status (PS), pain visual analog scale (VAS) score, quality of life (QoL), infections, and coagulation markers were also evaluated. Thirty-four patients (VM = 17, KTS = 17, 1-53 of age; median 15.9 years) with measurable lesion volume were analyzed. There was no statistically significant difference in the lesion volume between baseline and day 180, and the mean change rate (standard deviation) was 1.06 (0.28). There were no baseline characteristics that affected the change in lesion volume over 6 months. However, there were patients who showed more than 20% volume change and it was suggested that the lesion volume was largely impacted by local infection. There were no statistically significant changes in pain VAS score, severity, PS, QoL score, D-dimer, and platelet count over 6 months within all patients analyzed. Conclusion: The results showed the representative natural course of VM and KTS for a 6-month period with objective change of lesion volume and other factors, suggesting that it is scientifically reasonable to conduct a Phase 2 proof-of-concept study without a placebo arm, using the results of this study as the control. Clinical Trial Registration: NCT04285723, NCT04589650.

Conservative management of knee arthropathy in a patient with Klippel Trenaunay syndrome / Manejo conservador da artropatia do joelho em paciente com síndrome de Klippel-Trenaunay

Abstract Klippel-Trenaunay syndrome (KTS) is a rare vascular malformation characterized by capillary malformation, venous malformations, and soft tissue or bone hypertrophy that affect the extremities in most cases. Knee or hip arthropathy are common associated conditions and cause serious disability. We present the case of a patient with a diagnosis of KTS and severe knee arthropathy. A 34-year-old man with KTS was referred to our hospital with severe knee arthropathy, with the joint fixed in a 90° position. CT Angiography and MRI of the left leg showed important varicose development of the superficial venous system with intraarticular vessels. After discussion of the case by a multidisciplinary committee, the patient was enrolled on a physiotherapy program and had achieved significant improvements in movement and quality of life at 12-month follow-up. Treatment of KTS is primarily conservative and a multidisciplinary approach is necessary.

Resumo A síndrome de Klippel-Trenaunay (SKT) é uma malformação vascular rara caracterizada por malformação capilar, malformações venosas e hipertrofia de tecidos moles ou ósseos que afetam as extremidades na maioria dos casos. A artropatia do joelho ou do quadril é uma condição comumente associada e causa sérias deficiências. Apresentamos o caso de um paciente com diagnóstico de SKT e artropatia grave do joelho. Um homem de 34 anos com SKT foi encaminhado ao nosso hospital com artropatia grave do joelho com articulação fixa na posição de 90 °. A angiotomografia e a ressonância magnética da perna esquerda mostraram importante desenvolvimento varicoso do sistema venoso superficial com vasos intra-articulares. Após o caso ser discutido em um comitê multidisciplinar, o paciente foi incluído em um programa de fisioterapia, obtendo uma melhora significativa nos movimentos e na qualidade de vida após 12 meses de acompanhamento. O tratamento da SKT é principalmente conservador e exige uma abordagem multidisciplinar.

Inverse klippel-trenaunay syndrome / Síndrome de klippel-trenaunay inverso

ABSTRACT Objective: To report a rare case of inverse Kipplel-Trenaunay. Case description: A 16-year-old girl with a grayish-depressed plaque on her left thigh. Angioresonance showed a vascular malformation affecting the skin and subcutaneous tissue. Comments: Inverse Klippel-Trenaunay is a Klippel-Trenaunay syndrome variation in which there are capillary and venous malformations associated to hypotrophy or shortening of the affected limb. Modifications on the limb's length or width result from alterations in bones, muscles, or subcutaneous tissues. It has few described cases. Further clinical and molecular studies must be performed for a proper understanding.

RESUMO Objetivo: Relatar um caso raro de Klippel-Trenaunay inverso. Descrição do caso: Menina de 16 anos com placa deprimida acinzentada na coxa esquerda, evidenciando-se, por meio de angioressonância, uma malformação vascular, acometendo a pele e tecidos subcutâneos. Comentários: Klippel-Trenaunay inverso é uma variante da síndrome de Klippel-Trenaunay em que há malformação capilar e venosa associada à hipotrofia ou encurtamento do membro afetado. Pode envolver acometimento ósseo, muscular ou subcutâneo, modificando o comprimento ou a circunferência do membro. Há poucos casos descritos, e mais estudos clínicos e moleculares precisam ser realizados para seu correto entendimento.

Síndrome de Klippel Trenaunay Weber y embarazo / Klippel Trenaunay Weber Syndrome and Pregnancy

RESUMEN Introducción: El síndrome de Klippel Trenaunay Weber es una enfermedad vascular congénita, de causas desconocidas, caracterizada por hemangiomas planos, crecimiento excesivo de huesos y tejido blando, y venas varicosas. Cuando se asocia al embarazo incrementa la morbilidad y mortalidad materna y fetal. Objetivo: Describir dos casos clínicos de gestantes con este síndrome las cuales fueron atendidas en el Hospital Ginecobstétrico Docente "Ramón González Coro" en La Habana, Cuba. Métodos: Estudio descriptivo, retrospectivo, de dos casos mediante técnica de recolección de información, análisis de la historia clínica y búsqueda de literatura actualizada. El mismo se efectuó conforme a las reglamentaciones y principios éticos existentes para la investigación en humanos. No fue necesario que las pacientes ofrecieran su consentimiento informado. Presentación de casos: Los dos casos presentados fueron gestantes adolescentes a las cuales se les dio seguimiento en consulta multidisciplinaria y se les realizó cesárea a las 38 semanas, la primera por riesgo de sangrado por las varicosidades pelvianas y la segunda por indicación neurológica. Se obtuvieron en ambos casos recién nacidos femeninos, de 2620 y 3200 gramos respectivamente y en buenas condiciones. Conclusiones: Debe realizarse una correcta anamnesis durante los controles prenatales para identificar los factores de riesgo que se relacionan con esta entidad que es poco frecuente, pero está relacionada con una gran morbilidad. Es indispensable la actuación en equipo y la evaluación integral de estos casos por un grupo especializado de angiólogos, ginecobstetras, anestesistas, cirujanos, clínicos, y de otras especialidades, para lograr un resultado óptimo(AU)

ABSTRACT Introduction: Klippel Trenaunay Weber syndrome is a congenital vascular disease, of unknown causes, characterized by flat hemangiomas, overgrowth of bones and soft tissue, and varicose veins. When associated with pregnancy, it increases maternal and fetal morbidity and mortality. Objective: To describe two clinical cases of pregnant women with this syndrome, which were treated at the Ramón González Coro Gynecobstetric Teaching Hospital in Havana, Cuba. Methods: A descriptive, retrospective study of two cases using the information collection technique, analysis of the medical history, and search for updated literature. It was carried out in accordance with existing regulations and ethical principles for human research. Patients were not required to offer their informed consent. Case reports: The two cases presented were pregnant adolescents who were followed up in a multidisciplinary consultation and underwent caesarean section at 38 weeks, the first due to risk of bleeding as result of pelvic varicosities and the second due to neurological indication. In both cases, female newborns, 2620 and 3200 grams respectively, were obtained in good conditions. Conclusions: Correct anamnesis must be carried out during prenatal controls to identify the risk factors that are related to this entity, which is rare, but is related to high morbidity. Team action and comprehensive evaluation of these cases, by a specialized group of angiologists, gynecologists, anesthetists, surgeons, clinicians, and other specialties, are essential to achieve an optimal result(AU)

Síndrome de Klippel-Trénaunay: manifestaciones cutáneas / Klippel-Trénaunay syndrome: cutaneous manifestations

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Síndrome de Klippel-Trenaunay en un recién nacido / Klippel-Trenaunay Syndrome in a newborn

Se describe el caso clínico de un recién nacido, asistido en el Hospital General Docente Dr Juan Bruno Zayas Alfonso de Santiago de Cuba, sin antecedentes patológicos maternos ni familiares, quien presentaba macrocefalia, asimetría de los miembros inferiores, marcada hipertrofia en el miembro inferior izquierdo y macrodactilia, así como angiomas cutáneos en el área inferior del tronco, en el abdomen, la región glútea y las piernas. Luego de una evaluación detallada por parte de un equipo multidisciplinario, que se basó en el cuadro clínico y el estudio radiográfico, se diagnosticó el síndrome de Klippel-Trenaunay. El paciente ha mantenido una evolución favorable hasta el momento actual y se continúa un estricto seguimiento médico.

The case report of a newborn, assisted in Dr Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba is described, without maternal or family pathological history who presented macrocephalic asymmetry of the lower members, marked hypertrophy in the left low member and macrodactilia, as well as cutaneous angiomas in the lower area of the trunk, abdomen, buttocks region and legs. After a detailed evaluation by a multidisciplinary team which was based on the clinical pattern and radiographical study, the Klippel-Trenaunay syndrome was diagnosed. The patient has maintained a favorable clinical course up to now and a strict medical follow-up is carried out.

Síndrome de Klippel-Trenaunay en un recién nacido / Klippel-Trenaunay Syndrome in a newborn

Se describe el caso clínico de un recién nacido, asistido en el Hospital General Docente Dr Juan Bruno Zayas Alfonso de Santiago de Cuba, sin antecedentes patológicos maternos ni familiares, quien presentaba macrocefalia, asimetría de los miembros inferiores, marcada hipertrofia en el miembro inferior izquierdo y macrodactilia, así como angiomas cutáneos en el área inferior del tronco, en el abdomen, la región glútea y las piernas. Luego de una evaluación detallada por parte de un equipo multidisciplinario, que se basó en el cuadro clínico y el estudio radiográfico, se diagnosticó el síndrome de Klippel-Trenaunay. El paciente ha mantenido una evolución favorable hasta el momento actual y se continúa un estricto seguimiento médico(AU)

The case report of a newborn, assisted in Dr Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba is described, without maternal or family pathological history who presented macrocephalic asymmetry of the lower members, marked hypertrophy in the left low member and macrodactilia, as well as cutaneous angiomas in the lower area of the trunk, abdomen, buttocks region and legs. After a detailed evaluation by a multidisciplinary team which was based on the clinical pattern and radiographical study, the Klippel-Trenaunay syndrome was diagnosed. The patient has maintained a favorable clinical course up to now and a strict medical follow-up is carried out(AU)

Syndrome de Klippel-Trenaunay du noir africain : particularités cliniques et thérapeutiques à propos d'un cas

Les auteurs rapportent un cas d'un syndrome de Klippel­Trenaunayrévélé par des malformations variqueuses systématisées et une ostéodystrophie avec un reflux ostial important du membre inférieur droit au CHU de Bouaké. La chirurgie classique a consisté à un éveinage étendu associé à une crossectomie droite. L'examen histologique des lacis veineux était favorable à l'existence d'un angiome. Les suites opératoires ont été simples. Après un recul de 14 mois, le patient présente une myalgie intermittente survenant à l'effort de marche. Cette observation pose le problème de l'évolution postopératoire des varices congénitales

Síndrome de Klippel Trenaunay Weber. Consideraciones sobre un caso clínico / Klippel-Trenaunay-Weber syndrome. Considerations on a clinical case

RESUMEN Se presenta el caso de gestante de 26 años de edad, afecta del síndrome Klippel Trenaunay Weber congénito, con su primer embarazo el cual concluyó a las 39 semanas, mediante cesárea, obteniéndose recién nacido de 3450 gramos, buen Apgar al nacer, con evolución satisfactoria para el binomio madre-hijo. Se revisó bibliografía universal sobre esta patología, resaltándose los riesgos potenciales para la madre y su producto. Aún cuando la frecuencia de aparición de esta entidad es rara, resulta importante su conocimiento para los profesionales que laboran, tanto en la atención primaria de salud, como en la atención secundaria (AU).

ABSTRACT The case of a 26-years-old woman is presented. She presented the Klippel-Trenaunay-Weber syndrome in her first pregnancy finished at the 39th week through caesarian section; the newborn was 3450 grams, with good Apgar at birth: the mother-child binomial had a satisfactory evolution. The universal bibliography on this disease was reviewed, highlighting the potential risk for mother and child. Even when the frequency of this entity is rare, it is important its knowledge for the professionals working in the primary health care as much as in the secondary health care (AU).

Síndrome de Klippel Trenaunay Weber. Consideraciones sobre un caso clínico / Klippel-Trenaunay-Weber syndrome. Considerations on a clinical case

RESUMEN Se presenta el caso de gestante de 26 años de edad, afecta del síndrome Klippel Trenaunay Weber congénito, con su primer embarazo el cual concluyó a las 39 semanas, mediante cesárea, obteniéndose recién nacido de 3450 gramos, buen Apgar al nacer, con evolución satisfactoria para el binomio madre-hijo. Se revisó bibliografía universal sobre esta patología, resaltándose los riesgos potenciales para la madre y su producto. Aún cuando la frecuencia de aparición de esta entidad es rara, resulta importante su conocimiento para los profesionales que laboran, tanto en la atención primaria de salud, como en la atención secundaria (AU).

ABSTRACT The case of a 26-years-old woman is presented. She presented the Klippel-Trenaunay-Weber syndrome in her first pregnancy finished at the 39th week through caesarian section; the newborn was 3450 grams, with good Apgar at birth: the mother-child binomial had a satisfactory evolution. The universal bibliography on this disease was reviewed, highlighting the potential risk for mother and child. Even when the frequency of this entity is rare, it is important its knowledge for the professionals working in the primary health care as much as in the secondary health care. (AU)

Síndrome de Klippel Trenaunay / Klippel-Trenaunay Syndrome

El Síndrome de Klippel Trenaunay es una malformación vascular congénita caracterizada por una triada de manifestaciones clínicas que comprende una malformación vascular venular, linfática y venosa, junto con hipertrofia esquelética y aumento de tejidos blandos de uno o más miembros. De etiología desconocida, patogénicamente se cree que se produce una alteración en el desarrollo del mesodermo en el feto, que afecta a las líneas angioblástica, linfoblástica y osteoblástica. Se presenta el caso de un paciente femenino de 5 años de edad quien presenta una malformación vascular, diagnosticada inicialmente como hemangioma vascular y posteriormente se asoció a Síndrome de Klippel Trenaunay. El objetivo de la presentación de este caso es generar conocimiento sobre las características clínicas del síndrome de Klippel Trenaunay para un diagnóstico y tratamiento oportuno(AU)

Klippel-Trenaunay-Weber congenital vascular malformation characterized by a triad of clinical manifestations comprising a venular, venous and lymphatic vascular malformation, with hypertrophy increased skeletal and soft tissue of one or more members. Of unknown etiology, it is believed to pathogenically an alteration occurs in mesoderm development in the fetus, which affects angioblastic , and osteoblastic lymphoblastoid lines. Is presentedthe case of a 5 year old that has a vascular malformation, initially diagnosed as vascular hemangioma and later was associated with Klippel- Trenaunay-Weber. Objective: To generate knowledge about the clinical features of KlippelTrenaunay Syndrome for diagnosis and treatment(AU)

Síndrome de Klippel Trenaunay / Klippel-Trenaunay Syndrome

El Síndrome de Klippel Trenaunay es una malformación vascular congénita caracterizada por una triada de manifestaciones clínicas que comprende una malformación vascular venular, linfática y venosa, junto con hipertrofia esquelética y aumento de tejidos blandos de uno o más miembros. De etiología desconocida, patogénicamente se cree que se produce una alteración en el desarrollo del mesodermo en el feto, que afecta a las líneas angioblástica, linfoblástica y osteoblástica. Se presenta el caso de un paciente femenino de 5 años de edad quien presenta una malformación vascular, diagnosticada inicialmente como hemangioma vascular y posteriormente se asoció a Síndrome de Klippel Trenaunay. El objetivo de la presentación de este caso es generar conocimiento sobre las características clínicas del síndrome de Klippel Trenaunay para un diagnóstico y tratamiento oportuno(AU)

Klippel - Trenaunay -Weber congenital vascular malformation characterized by a triad of clinical manifestations comprising a venular, venous and lymphatic vascular malformation, with hypertrophy increased skeletal and soft tissue of one or more members. Of unknown etiology, it is believed to pathogenically an alteration occurs in mesoderm development in the fetus, which affects angioblastic , and osteoblastic lymphoblastoid lines. Is presentedthe case of a 5 year old that has a vascular malformation, initially diagnosed as vascular hemangioma and later was associated with Klippel- Trenaunay -Weber.Objective: To generate knowledge about the clinical features of KlippelTrenaunay Syndrome for diagnosis and treatment(AU)

Parálisis del nervio mediano secundaria a lipofibrohamartoma en el túnel carpiano / Paralysis of the median nerve due to a lipofibrohamartoma in the carpal tunnel

Introducción. El lipofibrohamartoma es una rara entidad nosológica de etiología desconocida que puede afectar a cualquier nervio periférico, localizándose de forma preeminente en el nervio mediano en el interior del túnel carpiano. El lipofibrohamartoma se asocia con frecuencia a otras alteraciones como la macrodactilia, los síndromes de Proteus y Klippel-Trenaunay-Weber, y la exóstosis múltiple, entre otras. Casos clínicos. Los autores han tratado en 20 años 4 lipofibrohamartomas del nervio mediano, 2 de los cuales tenían parálisis mediana, motivo de este artículo. Estos pacientes se trataron con liberación simple del nervio mediano mediante apertura del ligamento anular del carpo y transposición tendinosa abductora con palmaris longus prolongado con la fascia palmar superficial (técnica de Camitz). En uno de los casos, multioperado previamente, se realizó también un colgajo interóseo posterior para mejorar la calidad de las partes blandas de la cara anterior de la muñeca. Discusión. Se hace una revisión de la literatura sobre el lipofibrohamartoma del nervio mediano desde 1964 hasta 2010. La revisión de la literatura sugiere que el tratamiento más recomendado es la liberación simple del túnel carpiano y se recomienda asociar una transposición tendinosa si hay parálisis del nervio mediano(AU)

Introduction. The lipofibrohamartoma is a rare entity of unknown origin that can affect any peripheral nerves, but mainly being found in the median nerve within the carpal tunnel. The lipofibrohamartoma is frequently associated with other conditions such as macrodactyly, the Proteus and Klippel-Trenaunay-Weber syndromes and multiple exostosis, among others. Clinical cases. Two cases of lipofibrohamartoma in the carpal tunnel with associated median nerve palsy are described in the present article. They were treated by simple decompression of the median nerve by releasing the transverse carpal ligament and a palmaris longus tendon transfer to improve the thumb abduction (Camitz procedure). In one of the cases (a previously multi-operated median nerve entrapment at the carpal tunnel), a posterior interosseous skin flap was employed to improve the quality of the soft tissues on the anterior side of the wrist. Discussion. A review of the literature is also presented on lipofibrohamartoma of the median nerve, covering articles from 1964 to 2010. The literature suggests that the most recommended treatment to manage this condition is simple release of the carpal tunnel, which should be associated with a tendon transfer when a median nerve palsy is noticed(AU)

Klippel-Trenaunay syndrome / Síndrome de Klippel-Trenaunay

Klippel-Trenaunay syndrome (KTS) is a rare congenital, vascular disorder affecting one or more limbs. The syndrome is characterized by capillary malformations, soft tissue or bony hypertrophy and varicose veins or venous malformations. We present a case of this disorder in a twelveyear old boy who had an enlarged right lower limb with varicosities. Investigations revealed extensive superficial and deep venous varices, with dilatation of the right common iliac and external iliac veins. Klippel-Trenaunay syndrome should be suspected in a child presenting with capillary haemangioma and an enlarged limb.

El síndrome de Klippel-Trenaunay (KTS) es un raro trastorno congénito vascular que afecta a una o más extremidades. El síndrome se caracteriza por malformaciones capilares, hipertrofia ósea o del tejido suave, y várices o malformaciones venosas. Presentamos un caso de este trastorno en un muchacho de doce años que tenía una extremidad inferior derecha agrandada con varicocidades. Las investigaciones revelaron varices superficiales y várices venosas profundas, con dilatación de las venas ilíacas comunes derecha y las venas ilíacas externas. El síndrome de Klippel-Trenaunay se debe sospechar en un niño que se presenta con hemangioma capilar y agrandamiento de un miembro.