General surgeons with experience in Pilonidal cyst in Chalandri

Kelgiorgi Dionysia MD, MSc is a General Surgeon with a private practice in Chalandri. She holds a Master's Degree in "NEW TECHNOLOGIES IN DIGESTIVE SURGERY – MINIMALLY INVASIVE TECHNIQUES – BARIATRIC SURGERY" from the National and Kapodistrian University of Athens (NKUA). She is currently an instructor in this postgraduate program at the University of Athens. She has received certification in laparoscopic surgery from the internationally renowned IRCAD center of excellence in Minimally Invasive Surgery in Strasbourg. She is also certified in the use of surgical lasers from a reference center for perianal diseases in Leipzig, Germany. Her expertise includes Minimally Invasive Surgery (Laparoscopic and Robotic Surgery, Surgical Laser), as well as surgical oncology. She has served as a Consultant Surgeon in the Robotic Surgery and Surgical Oncology Clinic at Metropolitan General and held the same position for three years at Euroclinic Athens. Furthermore, she was a Consultant Surgeon at the certified Center of Excellence for Thyroid and Parathyroid Surgery at Euroclinic Athens. She is a member of Greek and European scientific societies, including the European and Hellenic Societies of Endoscopic Surgery, the European and Hellenic Hernia Societies, the European Society of Coloproctology, and the Hellenic Surgical Society, actively participating in their advanced training courses. She has numerous participations in conferences, seminars, and symposia in Greece and abroad and serves as a reviewer for the medical journals Cancer Medicine and Hepatobiliary & Pancreatic Diseases International.

Alifragkis Aleksandros is a General Surgeon and maintains a private practice in Vrilissia. He holds a medical degree from the University of Padova in Italy and specialized in General Surgery at the Attikon General Hospital "Sismanogleio" in Athens. The doctor specializes in laparoscopic tissue suturing and has attended training seminars organized by the Hellenic Surgical Society for several years. In his private practice, he offers a wide range of services, tailored to the individual needs of each patient.

Dr. Tsilividis Vasileios is a General Surgeon specializing in Oncological, Laparoscopic, and Bariatric Surgery, with extensive experience in university and private clinics in France and Greece, having completed more than 3,500 surgeries.

He maintains a private practice in Marousi.

He graduated from the French School of Athens and continued his studies at the Medical School of René Descartes University in Paris. There, he earned a Doctorate in Medicine and subsequently obtained numerous university diplomas in France, including specializations in digestive system surgery, oncological surgery, and bariatric surgery. He is also a member of the Hellenic Society of Gastrointestinal Oncology.

His professional career began at the University Hospital of Rouen, where he served as a resident, registrar, and later as a hospital physician. Since 2017, he has worked in clinics in France primarily focusing on General, Laparoscopic, Bariatric, and Oncological surgery using minimally invasive techniques. He currently offers his services at the Athens Medical Center in Marousi.

Dr. Tsilividis has participated in numerous scientific conferences and seminars, has published papers in international medical journals, and has undertaken educational roles at the university level.

He is fluent in French and English.

Dr. Tsilividis Vasileios is a General Surgeon specializing in Oncological, Laparoscopic, and Bariatric Surgery, with extensive experience in university and private clinics in France and Greece, having performed over 3,500 surgeries.

He maintains private practices in Marousi and Peristeri.

He graduated from the French School of Athens and continued his studies at the Medical School of René Descartes University in Paris. There, he earned his Doctor of Medicine degree and subsequently obtained numerous university diplomas in France, including specializations in gastrointestinal surgery, oncological surgery, and bariatric surgery. He is also a member of the Hellenic Society of Gastrointestinal Oncology.

His professional career began at the University Hospital of Rouen, where he served as a resident, registrar, and later as a hospital physician. Since 2017, he has worked in clinics in France primarily focusing on General, Laparoscopic, Bariatric, and Oncological surgery, utilizing minimally invasive techniques. Currently, he provides his services at the Athens Medical Center in Marousi and Peristeri.

Dr. Tsilividis has participated in numerous scientific conferences and seminars, published papers in international medical journals, and undertaken educational roles at the university level.

He is fluent in French and English.

Kampouroglou Georgios is a Pediatric Surgeon practicing professionally in Athens. He was admitted first in the nationwide entrance examinations to the Medical School of the University of Athens, and during his studies, he received relevant scholarships. As part of his training in Pediatric Surgery, he trained and worked in Switzerland (Geneva University Hospitals, Jura, Nyon) and at the "Agia Sofia" Children's Hospital in Athens. He specialized in laparoscopic, percutaneous, and minimally invasive pediatric surgery in Switzerland (Geneva, Davos) and Strasbourg (IRCAD), as well as in digestive endoscopies (Agia Sofia Hospital and IRCAD, Strasbourg). During his training at the University Hospital of Geneva, he focused particularly on Pediatric Urology and Liver and Biliary Surgery in children. The physician holds a doctorate from the National and Kapodistrian University of Athens and also possesses a postgraduate degree in Surgical Anatomy. He has a substantial record of research and publication (participation in research groups, numerous international and Greek publications, chapters in scientific textbooks, presentations, and lectures at international and Greek conferences). He serves as a reviewer for international scientific journals and teaches First Aid courses to undergraduate and postgraduate students. He also serves as the Deputy General Secretary of the Society of Medical Studies.

Dr. Napoleon Xirokostas is a board-certified General Surgeon with subspecialty training in Laparoscopic, Robotic, and Oncologic Surgery. He maintains a private medical office in Rafina, Greece, and also serves as a Consultant Surgeon at the 1st Surgical Department of IASO General Hospital in Athens.

He completed his residency in General Surgery at Evangelismos General Hospital of Athens, the largest tertiary care and trauma center in Greece, where he also held the position of Chief Resident. Over the course of his training, he participated in more than 1,000 surgical procedures, including a wide spectrum of emergency, oncologic, and minimally invasive surgeries.

Dr. Xirokostas holds a Medical Degree (MD) from the Democritus University of Thrace and a Master of Science (MSc) in Advanced Laparoscopic and Bariatric Surgery from the National and Kapodistrian University of Athens.

He completed his mandatory rural medical service at the General Hospital of Kyparissia and previously served in the Greek Army as a General Medicine Doctor, providing medical assessments and basic life support instruction.

He has received extensive training in trauma surgery (DSTC), laparoscopic and robotic techniques, microsurgery, and emergency abdominal procedures. He is certified in ATLS, ALS, and has participated in numerous specialized surgical workshops and cadaveric dissection courses across Europe.

Dr. Xirokostas has an active academic presence, with several peer-reviewed publications and presentations at national and international surgical congresses.

He treats conditions including:

• Laparoscopic surgeries (cholecystectomy, hernias, appendectomy)

• Thyroid and parathyroid surgery

• Oncologic surgery (colorectal, gastric, skin/melanoma, soft tissue)

• Robotic surgery for complex abdominal cases

• Emergency trauma surgery and general surgical consults

His clinical approach is grounded in personalized care, evidence-based practice, and a strong commitment to patient safety and recovery.