Thomas F. Kolon, MD

Thomas F. Kolon, MD, is an attending pediatric urologist at The Children's Hospital of Philadelphia. 

Areas of Expertise: Andrology, Cloacal variants, Cryptorchidism (Undescended Testis), Disorders of sex development, Hypospadias, Pediatric urologic oncology, Varicocele, Wilms tumor
Locations: Main Campus; Specialty Care, Atlantic County; Specialty Care, Princeton; Specialty Care & Surgery Center, Voorhees
Phone: 215-590-2754

  • Background

    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.

  • Education and Training

    Medical School

    MD - Georgetown University School of Medicine, Washington, DC

    Internship

    Surgery - Hartford Hospital, Hartford, CT

    Residency

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

    Fellowship

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

    Board Certification

    Pediatric Urology
    Urology

    Graduate Degree

    MS - Georgetown University, Washington, DC

  • Titles and Academic Titles

    Attending Urologist

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

  • Centers and Programs
  • Research Interests

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

  • Publications

    Books

    Chapters

    2009

    Sumfest JM, Kolon TF, Rukstalis DB. Cryptorchidism. In: e-Medicine Textbook of Medicine and Surgery from WebMD. Updated Jan. 02, 2009.

    2008

    Kolon TF. Cryptorchidism. In Shukla AR, Austin PF, Herndon CDA, editors. The Kelalis-King-Belman Textbook of Clinical Pediatric Urology Study Guide, First Edition. London: Martin-Dunitz; 2008. p. 229-231.

    Kolon TF. Intersex (Disorders of Sex Development). In: Schwartz MW, Bell Jr LM, Bingham PM, Chung EK, Friedman DF, Mulberg AE, Tanel RE, Schwartz CI, Kosmowski C, editors. The 5-Minute Pediatric Consult, Fifth Edition. New York: Lippincott, Williams & Wilkins; 2008. p. 456-457.

    Wu HS, Kolon TF. Cryptorchidism. In: Schwartz MW, Bell Jr LM, Bingham PM, Chung EK, Friedman DF, Mulberg AE, Tanel RE, Schwartz CI, Kosmowski C, editors. The 5-Minute Pediatric Consult, Fifth Edition. New York: Lippincott, Williams & Wilkins; 2008. p. 236-237.

    2007

    Kolon TF. Disorders of sexual development. In: Hanno P, Wein A, Malkowicz SB, editors. Penn Clinical Manual of Urology. Philadelphia: Elsevier Inc.; 2007. Ch. 25, p. 827-852.

    Kolon TF. Cryptorchidism. In: The Kelalis-King-Belman Textbook of Clinical Pediatric Urology, Fifth Edition. London, England: Martin-Dunitz; 2007. Ch. 74, p. 1295-1308.

    Papers

    2013

    Christman MS, Kraft KH, Tasian GE, Zderic SA, Kolon TF. Reproducibility and reliability of semen analyses in youths at risk for infertility. J Urol. 2013 Feb 19. doi:pii: S0022-5347(13)00299-1. 10.1016/j.juro.2013.02.030. [Epub ahead of print]. Read the abstract

    Christman MS, Zderic SA, Kolon TF. Comparison of semen analyses amongst youths with a history of cryptorchidism or varicocele. J Urol. 2013 Feb 14. doi:pii: S0022-5347(13)00286-3. 10.1016/j.juro.2013.02.017. [Epub ahead of print]. Read the abstract

    2012

    Kraft KH, Canning DA, Snyder HM 3rd, and Kolon TF.Undescended testis histology correlation with adult hormone levels and semen analysis. J Urol. 2012 Oct; 188(4 Suppl): 1429–35. doi: 10.1016/j.juro.2012.04.025. Epub 2012 Aug 17. Read the abstract

    Kraft KH, Bhargava N, Schast AP, Canning DA, Kolon TF. Histological examination of solitary contralateral descended testis in congenital absence of the testis. J Urol. 2012 Feb;187(2):676-80. Epub 2011 Dec 16. Cited in PubMed; PMID 22177918. Read the abstract

    Kraft KH, Canning DA, Snyder HM 3rd, Kolon TF. Undescended testis histology correlation with adult hormone levels and semen analysis. J Urol. 2012 Oct;188(4 Suppl):1429-35. doi: 10.1016/j.juro.2012.04.025. Epub 2012 Aug 17. Cited in PubMed; PMID 22906677. Read the abstract

    2011

    Kraft KH, Mucksavage P, Canning DA, Snyder HM III, Kolon TF. Histological findings in patients with cryptorchidism and testis-epididymis nonfusion. J Urol. 2011 Nov;186(5):2045-9. Epub 2011 Sep 23. Cited in PubMed; PMID 21944137. Read the abstract

    Kraft KH, Bhargava N, Schast AW, Canning DA, Kolon TF. Histological examination of solitary contralateral descended testis in congenital absence of testis. J Urol. 2012 Feb;187(2): 676–680. doi: 10.1016/j.juro.2011.10.021. Epub 2011 Dec 16. Read the abstract

    2010

    Ashley RA, Barthold JS, Kolon TF. Cryptorchidism: pathogenesis, diagnosis, treatment and prognosis. Urol Clin North Am. 2010 May;37(2):183-93. Read the abstract

    Posters and Presentations

    2012

    10/2012 “Histology of Testicular Biopsy Specimens Obtained for Cryopreservation and Future Re-Implantation As a Fertility-Preserving Technique.” American Academy of Pediatrics, Annual Meeting, New Orleans, LA

    10/2012 “Comparison of Semen Analyses Amongst Youths with a History of Cryptorchidism or Varicocele.” American Academy of Pediatrics, Annual Meeting, New Orleans, LA

    10/2012 “Ultrasound Testicular Volumes Do Not Differentiate Fertility Risk In Adolescents with a Varicocele.” American Academy of Pediatrics, Annual Meeting, New Orleans, LA

    10/2012 “Long Term Management of Disorders of Sexual Differentiation: Impact on Fertility, Cancer Risk, Psychosexual Development.” Panel Discussion: Moderator. American Academy of Pediatrics, Annual Meeting, New Orleans, LA

  • Editorial and Academic Positions
    Editorial Positions

    Urology
    Dialogues in Pediatric Urology
    Journal of Urology
    British Journal of Urology
    Urologic Clinics of North America
    Journal of Andrology
    Asian Journal of Andrology
    Biology of Reproduction
    Pediatric Surgery International
    Expert Review of Clinical Immunology
    Journal of Pediatric Urology
    The Anatomical Record

    Institutional Committees

    Program Director, Pediatric Urology Fellowship, Children’s Hospital of Philadelphia, Philadelphia, Pa.
    Executive Committee of Medical Staff, Information Systems Committee (CHOP)
    CHOPlink Clinical Advisory Team (CHOP)
    Executive Committee of Medical Staff (CHOP)