Chronic Lymphocytic Leukemia (CLL)
What Is Chronic Lymphocytic Leukemia (CLL)? Chronic lymphocytic leukemia (CLL) is a type of blood cancer that affects the bone marrow and blood. In a healthy body, blood stem cells mature into red blood cells, platelets, and white blood cells (lymphocytes) that help fight infection. In CLL, too many blood stem cells develop into abnormal lymphocytes, also called leukemia cells. These cells do not function properly and cannot fight infections effectively. As they accumulate in the bone marrow and bloodstream, they crowd out healthy blood cells. This can lead to anemia, increased risk of infections, and easy bruising or bleeding. CLL is considered a chronic leukemia, meaning it usually progresses slowly over time. Risk Factors for CLL The main risk factors associated with CLL include: Family history of CLL Family history of cancers of the lymphatic system Age over 70 Male sex White ethnicity Exposure to Agent Orange CLL does not appear to be linked to diet, infections, or smoking. Symptoms of CLL CLL often develops silently. Many people have the disease for years without symptoms and are diagnosed incidentally during routine blood tests for unrelated conditions. When symptoms do appear, they may include: Fatigue and weakness Enlarged lymph nodes (felt as painless lumps under the skin) Abdominal discomfort or a feeling of fullness due to an enlarged spleen Unexplained weight loss Night sweats Frequent or severe infections Types of CLL There are two main biological forms of CLL: Slow-growing (indolent) CLL, which may not require treatment for many years Faster-growing (aggressive) CLL, which progresses more rapidly and requires earlier treatment The difference between these types cannot be determined by symptoms alone. Specialized laboratory and genetic testing are required to identify the form of CLL and guide treatment decisions.

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Areas of Expertise Neuromuscular Conditions Specialized orthopedic surgical care for Cerebral Palsy (CP), including gait analysis, tendon transfers, and corrective osteotomies to improve mobility and function. Limb Correction & Lengthening Treatment of limb length discrepancies, pediatric deformity correction, and stature lengthening using advanced techniques such as the Ilizarov method. Rare Bone Diseases Surgical management of Osteogenesis Imperfecta (Glass Bone Disease) and skeletal dysplasias, with a focus on fracture prevention and functional alignment. Congenital Orthopedic Diseases Diagnosis and treatment of clubfoot (PEV), congenital hip dislocation, and hip dysplasia. Pediatric Sports Injuries Minimally invasive treatments for children and adolescents, including knee arthroscopy and ACL reconstruction. Foot & Ankle Conditions Expert care for flatfoot, hallux valgus repair, and Achilles tendon lengthening. General Pediatric Orthopedics Management of childhood fractures, dislocations, scoliosis, and walking disorders. Dr. Erdal is an active academic contributor with numerous international publications and book chapters in pediatric orthopedic surgery. He is a member of leading professional organizations, including the European Paediatric Orthopaedic Society (EPOS) and the American Academy of Orthopaedic Surgeons (AAOS), reflecting his commitment to evidence-based, globally informed care

Areas of Expertise Oncologic Surgery Metabolic Surgery Laparoscopic Surgery Endocrine Surgery Laparoscopic Hernia Surgery Laparoscopic Anti-Reflux Surgery Morbid Obesity Surgery Type 2 Diabetes Surgery Sleeve Gastrectomy

Areas of Expertise Hand Surgery & Microsurgery Recognized for advanced hand surgery, including prosthetic finger solutions, carpal tunnel release, and complex microsurgical repairs of nerves, tendons, and soft tissues. Arthroscopy & Arthroplasty Expertise in minimally invasive arthroscopic procedures and joint replacement surgeries, particularly of the knee and hip, aimed at restoring mobility and reducing pain. Spine Surgery Treatment of herniated discs and other degenerative spinal disorders, using modern surgical techniques to improve function and quality of life. Trauma Surgery Extensive experience in managing fractures and acute musculoskeletal injuries involving bones and joints. Regenerative Medicine Specialized in stem cell therapies, especially for knee joint conditions, supporting tissue healing and joint preservation.
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