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Thomas F. Kolon, MD

Attending Urologist

Associate Professor of Urology in Surgery, University of Pennsylvania School of Medicine

Specialties and Services

Practice Locations


MD - Georgetown University School of Medicine, Washington, DC

MS - Georgetown University, Washington, DC


Surgery - Hartford Hospital, Hartford, CT


Surgery and Urology - University of Connecticut Health Center, Farmington, CT


Pediatric Urology - Baylor College of Medicine, Texas Children's Hospital, Houston, TX

Board Certification

Pediatric Urology

Year Appointed


Special Interests

Cryptorchidism (Undescended Testis)
Disorders of sex development
Cloacal variants
Wilms tumor

Approach to Care

Dr. Kolon is an expert in the care of children with genital disorders and renal/bladder cancers. He has published extensively in the area of long-term follow-up of patients with undescended testis and varicocele, with specific emphasis on fertility preservation and rehabilitation. Dr. Kolon is world renowned in this area and has published on the likelihood of future fertility in patients with undescended testicles and varicocele, and the preservation of fertility in oncology patients.

Dr. Kolon works extensively with patients with disorders of sex development so their reconstruction will optimize sexual function. He is an expert in pediatric urologic oncology, particularly in pediatric renal tumors.

Research Interests

Molecular etiology of genital anomalies, especially cryptorchidism and disorders of sex development

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