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Jennifer Picarsic, MD

UPMC Children's Hospital of Pittsburgh Chief of Pathology and Head of Laboratories, Professor of Pathology

Dr Picarsic is the Chief of Pediatric Pathology and Head of Laboratories at UPMC Children's Hospital of Pittsburgh. She is a member of the of UPMC Children’s Hospital of Pittsburgh Research Advisory Committee (RAC).

Clinical Expertise

Pediatric pathology (including tumors, livers, small bowel, heart and lung transplant pathology, Hirschsprung disease, native GI/liver) and histiocytic neoplasms and disorders (pediatric and adult).

Certifications

Medical License -Commonwealth of Pennsylvania, Department of State, Bureau of Professional and Occupational Affairs
American Board of Pathology, Combined Anatomical and Clinical Pathology 
American Board of Pathology, Pediatric Pathology

Education & Training
BSc- Dickinson College, 2003, Summa cum Laude
MD- University of Pittsburgh School of Medicine 2007
Awards
Dickinson College, Alpha Lambda Delta Academic Honor Society, Phi Beta Kappa, and Wheel and Chain Honor Society
American Society of Clinical Pathology (ASCP) Award for Academic Excellence, 2006
University of Pittsburgh School of Medicine, Robert E. Lee Award for Excellence in Anatomic Pathology, 2007
American Society of Clinical Pathology (ASCP) Forty under 40 honoree, 2016
Histiocyte Society (HS), Nesbit Award for Best Clinical Paper, 2018
Best Doctors in America® 2019 - 2020 List (“Best Doctors List”)
Society for Pediatric Pathology (SPP), Lotte Strauss Prize Lecture for best clinical paper, 2022
Cincinnati Children’s Hospital Medical Center Faculty Award: Clinical Care Achievement Award, Senior category, 2024
Research Interests

Dr. Picarsic's interests include investigating the pathologic, molecular, and clinical characterization of benign and malignant pediatric histiocytic neoplasms including 1.) Langerhans cells histiocytosis (LCH) with unusual presentations while correlating the histopathology of recurrent and clinically low-grade diseases that cause long-term permanent consequences with molecular integration in blood and tissues: 1a) Expanding the pathologic understanding of brain involvement with non-tumorous mutant histiocytic infiltrates which causes white matter injury with gliosis, demyelination, and neurodegenerative sequelae; 1b) Expanding the pathologic understanding of liver/bile duct involvement in histiocytic disorders and pathogenesis which driving liver fibrosis in LCH patients; and 1c) Expanding the pathologic understanding of bone marrow involvement in histiocytic disorders. 2. LCH disease and the impact of mutation on phenotypic alterations. 3) Non-LCH disease presentations of NTRK1 rearranged histiocytosis and other molecular drivers in juvenile xanthogranuloma family of lesions. 4.) Malignant histiocytosis -nomenclature updates and investigating the histopathology correlates that associate with worse outcome using novel pathology models.

Representative Publications

View Dr. Picarsic's publications on PubMed

The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours: Myeloid and Histiocytic/Dendritic Neoplasms. Khoury JD, et al. Leukemia. 2022. PMID: 35732831 Free PMC article. Review.

Histiocytic disorders. McClain KL, et al. Nat Rev Dis Primers. 2021. PMID: 34620874 Free PMC article. Review.

Revised classification of histiocytoses and neoplasms of the macrophage-dendritic cell lineages. Emile JF, et al. Blood. 2016. PMID: 26966089 Free PMC article. Review.

Consensus recommendations for the diagnosis and clinical management of Rosai-Dorfman-Destombes disease. Abla O, et al. Blood. 2018. PMID: 29720485 Free PMC article. Review.

International expert consensus recommendations for the diagnosis and treatment of Langerhans cell histiocytosis in adults. Goyal G, et al. Blood. 2022. PMID: 35271698 Free PMC article.

Erdheim-Chester disease: consensus recommendations for evaluation, diagnosis, and treatment in the molecular era. Goyal G, et al. Blood. 2020. PMID: 32187362 Free article. Review.

ALK-positive histiocytosis: a new clinicopathologic spectrum highlighting neurologic involvement and responses to ALK inhibition. Kemps PG, et al. Blood. 2022. PMID: 34727172 Free PMC article.

Activating mutations in CSF1R and additional receptor tyrosine kinases in histiocytic neoplasms. Durham BH, et al. Nat Med. 2019. PMID: 31768065 Free PMC article.

Dabrafenib and trametinib in Langerhans cell histiocytosis and other histiocytic disorders. Cournoyer E, et al. Haematologica. 2024. PMID: 37731389 Free PMC article.

Langerhans cell histiocytosis: NACHO update on progress, chaos, and opportunity on the path to rational cures.Bielamowicz K, et al. Cancer. 2024. PMID: 38687639 Review.

Circulating senescent myeloid cells infiltrate the brain and cause neurodegeneration in histiocytic disorders.Wilk CM, et al. Immunity. 2023. PMID: 38091952 Free PMC article.