What We Treat
A Leading Center for Comprehensive Vascular Malformation Management


Our Center
Advanced, Multidisciplinary Treatments for Vascular Conditions
When faced with a vascular anomaly—whether in a child or adult—patients and families often struggle to find experienced, coordinated care. These conditions are rare, frequently misunderstood, and require nuanced expertise across multiple specialties. At the Vascular Anomalies and Malformations Program (TVCG CARES), we provide comprehensive diagnostic evaluations and advanced treatments for the full spectrum of vascular malformations and anomalies.
Our team offers a multidisciplinary approach tailored to each patient’s condition. Treatment plans are developed collaboratively and reviewed regularly to ensure the most effective, least invasive care possible.
As one of the few programs in the country to offer this level of expertise in an outpatient setting, TVCG CARES is uniquely positioned to treat pediatric and adult patients with hemangiomas, slow- and high-flow malformations, and congenital mixed syndromes. Patients travel from across New England, the U.S., and abroad to access our specialized care.
Contact us to schedule a consultation and learn more about how our expert team can support the best possible outcome.
Our team offers a multidisciplinary approach tailored to each patient’s condition. Treatment plans are developed collaboratively and reviewed regularly to ensure the most effective, least invasive care possible.
As one of the few programs in the country to offer this level of expertise in an outpatient setting, TVCG CARES is uniquely positioned to treat pediatric and adult patients with hemangiomas, slow- and high-flow malformations, and congenital mixed syndromes. Patients travel from across New England, the U.S., and abroad to access our specialized care.
Contact us to schedule a consultation and learn more about how our expert team can support the best possible outcome.
CONDITIONS TREATED
Precision Care for a Full Range of Vascular Malformations
Hemangiomas
Infantile Hemangiomas
The most common type of hemangioma, infantile hemangiomas, typically appears within the first few weeks of life and may grow rapidly during infancy. While many are harmless and fade over time, others require medical attention due to their size, location, or complications. Our team offers expert evaluation and individualized treatment plans to ensure the best outcomes during this critical stage of development.
Congenital Hemangiomas
Present at birth, congenital hemangiomas differ from infantile types in both appearance and behavior. These vascular tumors may either involute rapidly (RICH), not at all (NICH), or partially. Because they can be mistaken for other vascular anomalies, accurate diagnosis is essential. Our team provides expert assessment and tailored care to manage these complex lesions with precision and compassion.
Kaposiform Hemangioendothelioma / Tufted Angioma
These rare, locally aggressive vascular tumors typically appear in infancy or early childhood. Often associated with pain, swelling, or coagulopathy such as the Kasabach-Merritt phenomenon, they require prompt, specialized care. Our multidisciplinary team is experienced in diagnosing and managing these complex cases using medical therapy, interventional procedures, and coordinated follow-up.
Vascular Malformations
Capillary Malformations (Port-Wine Stains)
Capillary malformations, commonly known as port-wine stains, are flat, pink to red patches on the skin caused by dilated capillaries. While often present at birth, they can darken or thicken over time and may be associated with underlying conditions.
At TVCG CARES International, we evaluate each case with precision to determine the best course of treatment. With Dr. Nassiri’s expertise in vascular anomalies, patients receive personalized care that goes far beyond cosmetic concerns, addressing appearance and potential complications with advanced insight.
At TVCG CARES International, we evaluate each case with precision to determine the best course of treatment. With Dr. Nassiri’s expertise in vascular anomalies, patients receive personalized care that goes far beyond cosmetic concerns, addressing appearance and potential complications with advanced insight.
Slow-Flow Venous Malformations
Slow-flow venous malformations are abnormally formed veins that can cause pain, swelling, or a bluish appearance under the skin. Often present from birth and prone to progressive growth, these malformations can affect function and quality of life.
At TVCG CARES International, Dr. Nassiri brings global expertise and a nuanced understanding of these complex conditions, offering advanced diagnostic imaging, minimally invasive procedures, and tailored care plans designed to restore comfort, function, and peace of mind.
At TVCG CARES International, Dr. Nassiri brings global expertise and a nuanced understanding of these complex conditions, offering advanced diagnostic imaging, minimally invasive procedures, and tailored care plans designed to restore comfort, function, and peace of mind.
Slow-Flow Lymphatic Malformations
Slow-flow lymphatic malformations occur when lymphatic vessels, responsible for fluid drainage, develop abnormally. These malformations often present early in life as fluid-filled cysts or swelling that can affect skin and deeper tissues.
At TVCG CARES International, Dr. Nassiri employs advanced imaging and minimally invasive treatments, such as targeted sclerotherapy, to manage symptoms and improve function, always with a focus on personalized, compassionate care.
At TVCG CARES International, Dr. Nassiri employs advanced imaging and minimally invasive treatments, such as targeted sclerotherapy, to manage symptoms and improve function, always with a focus on personalized, compassionate care.
High-Flow Arteriovenous Malformations
High-flow arteriovenous malformations are complex vascular conditions in which abnormal connections between arteries and veins disrupt normal blood flow. If untreated, these malformations can lead to serious complications.
At TVCG CARES International, Dr. Nassiri combines state-of-the-art imaging with expert catheter-based embolization techniques to carefully control and minimize symptoms, providing patients with tailored, cutting-edge care designed to preserve quality of life.
At TVCG CARES International, Dr. Nassiri combines state-of-the-art imaging with expert catheter-based embolization techniques to carefully control and minimize symptoms, providing patients with tailored, cutting-edge care designed to preserve quality of life.
Congenital Mixed Syndromes
Klippel-Trenaunay Syndrome (KTS)
Klippel-Trenaunay Syndrome (KTS) is a rare congenital condition marked by a combination of port-wine stains, abnormal tissue overgrowth, and venous or lymphatic malformations. Symptoms can range from limb asymmetry to chronic pain, recurrent infections, and venous insufficiency. At TVCG CARES International, we take a comprehensive and precise approach, leveraging advanced imaging, minimally invasive embolization, and expert-guided treatment to help patients manage symptoms and improve quality of life.
Parkes-Weber Syndrome
Parkes-Weber Syndrome shares features with Klippel-Trenaunay Syndrome but involves fast-flow arteriovenous malformations instead of slow-flow venous ones. These high-flow connections between arteries and veins can cause limb overgrowth, increased warmth, and visible pulsations, often leading to serious complications over time. At TVCG CARES International, we specialize in precise, catheter-based treatments to target these malformations and minimize long-term risks, ensuring patients receive the focused, expert care they deserve.
Blue Rubber Bleb Nevus Syndrome
Blue Rubber Bleb Nevus Syndrome, also known as Bean Syndrome, is a rare condition marked by multiple venous malformations in the skin, soft tissues, and internal organs, particularly the gastrointestinal tract. These lesions can cause pain, swelling, and potentially serious internal bleeding. At TVCG CARES International, we offer multidisciplinary care that combines endoscopic management, direct embolization, and surgical intervention to address both cosmetic concerns and life-threatening complications with precision and compassion.
CLOVES Syndrome
CLOVES is a mnemonic that refers to Congenital Lipomatous Overgrowth, Vascular malformations, Epidermal nevi, and spine deformities. It is a complex congenital condition involving overgrowth of fatty tissue, vascular and lymphatic malformations, skin lesions, and spinal abnormalities. Most often diagnosed in infancy or early childhood, it requires coordinated, multidisciplinary care. At TVCG CARES International, we bring together vascular experts, surgeons, and specialists across disciplines to evaluate and manage this rare condition, focusing on improving quality of life and reducing long-term complications.
Hereditary Hemorrhagic Telangiectasias (HHT)
HHT or Osler-Weber-Rendu Syndrome is a hereditary disorder characterized by abnormal blood vessel formation, leading to arteriovenous malformations in the skin, lungs, and other organs. Common symptoms include frequent nosebleeds and visible skin changes. Due to potential serious complications such as bleeding and stroke, early diagnosis and specialized treatment are critical. At TVCG CARES International, our expert team uses advanced imaging and targeted embolization therapies to manage and reduce risks associated with HHT, providing comprehensive lifelong care.


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Contact Us Today for Expert Care, Answers, and Personalized Treatment Options
(203) 548-7858

