Ivy John, MD
Assistant Professor of Pathology

Dr. John
Dr. John is a member of the Division of Anatomic Pathology and Director of Bone and Soft Tissue Center of Excellence.

Office Location:
Department of Pathology
Room WG 2.7
UPMC Shadyside
5230 Centre Avenue
Pittsburgh, PA 15232
Contact Information:
Office Telephone: 412-623-6484
Fax: 412-682-6450
Email: johni@upmc.edu


  • MBBS - Kasturba Medical College, Manipal
  • Pathology Residency (Chief) - SUNY Upstate Medical University
  • Surgical Pathology Fellowship - Mayo Clinic
  • Bone and Soft Tissue Fellowship - University of Pittsburgh Medical Center

Clinical Expertise

Bone and soft tissue pathology

Research Interests

Dr. John's research interests are focused on histopathologic and molecular characterization of bone and soft tissue tumors.

Selected Publications

  • John I, Folpe AL. Anastomosing Hemangiomas Arising in Unusual Locations: A Clinicopathologic Study of 17 Soft Tissue Cases Showing a Predilection for the Paraspinal Region. Am J Surg Pathol. 2016 Aug;40(8):1084-9. doi: 10.1097/PAS.0000000000000627. PMID: 26945338.
  • John I, Rao UNM. An Unusual Normal Finding in Coccygectomy Specimens. Int J Surg Pathol. 2017 Dec;25(8):700-701. doi: 10.1177/1066896917714891. Epub 2017 Jun 14. PMID: 28614962.
  • John I, Inwards CY, Wenger DE, Williams DD, Fritchie KJ. Chondroblastomas presenting in adulthood: a study of 39 patients with emphasis on histologic features and skeletal distribution. Histopathology. 2019 Aug 20; doi: 10.1111/his.13972. [Epub ahead of print] PMID: 31429985.
  • Waters R, Horvai A, Greipp P, John I, Demicco EG, Dickson BC, Tanas MR, Larsen BT, Ud Din N, Creytens DH, Bahrami A, Doyle LA, Jo VY, Al-Ibraheemi A, Thway K, Jenkins SM, Siontis B, Folpe A, Fritchie K. Atypical lipomatous tumour/well-differentiated liposarcoma and de-differentiated liposarcoma in patients aged ≤ 40 years: a study of 116 patients. Histopathology. 2019 Aug 30;. doi: 10.1111/his.13957. [Epub ahead of print] PMID: 31471922.
  • Lopez-Nunez O, John I, Panasiti RN, Ranganathan S, Santoro L, Grélaud D, Wu T, Buccoliero AM, Casanova M, Alaggio R, Surrey LF. Infantile inflammatory myofibroblastic tumors: clinicopathological and molecular characterization of 12 cases. Mod Pathol. 2019 Nov 5; doi: 10.1038/s41379-019-0406-6. [Epub ahead of print] PMID: 31690781.
  • John I, Fritchie KJ. What is new in pericytomatous, myoid, and myofibroblastic tumors? Virchows Arch. 2019 Nov 8; doi: 10.1007/s00428-019-02700-y. [Epub ahead of print] Review. PMID: 31705190.
  • Lopez LV, Marker DF, Bailey N, Liu Y, McGough RL, Singhi AD, John I. Soft Tissue Fibroblastic Reticular Cell Tumor With Whole-Exome Sequencing Findings: An Unexpected Presentation of Lynch Syndrome. AJSP: Reviews & Reports: November/December 2019 - Volume 24 - Issue 6 - p 288-29. doi: 10.1097/PCR.0000000000000337.