Olga Pozdnyakova, MD, PhD
Pathology and Laboratory Medicine
Accepting new patients
Sees patients age 18 and up
Penn Pathology and Laboratory Medicine HUP
Call 800-789-7366
Penn Medicine Provider

About me

  • Professor of Pathology and Laboratory Medicine at the Hospital of the University of Pennsylvania

Education and training

  • Medical School: Russian National Research Medical University
  • Residency: UMass Memorial Medical Center
  • Residency: University of Massachusetts Medical Center
  • Fellowship: Massachusetts General Hospital/Brigham and Women’s Hospital

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Pozdnyakova is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

Young JH, Pozdnyakova O. How I diagnose B-cell lymphoproliferative disorders with plasmacytic differentiation. , Am J Clin Pathol. 2025 Apr 19;163(4):501-510. doi: 10.1093/ajcp/aqae163. PMID: 40036978.: 2025

Moore M, Chen X, Sadigh S, Seifert R, Mindiola Romero AE, Pozdnyakova O, Courville EL. Evaluating pathologist practices in peripheral blood smear review: A comprehensive practice survey. , Am J Clin Pathol. 2025 Jan 28;163(1):42-51. doi: 10.1093/ajcp/aqae091. PMID: 39037433.: 2025

Patel P, Pozdnyakova O. Seeing is believing: a histology textbook's dream case of sarcoidosis. , Blood. 2025 Apr 24;145(17):1962. doi: 10.1182/blood.2025028699. PMID: 40272852.: 2025

Amelie Therrien, Srihitha Akula, Michelle Galeas-Pena, Emma Frank, Lily Gillette, Jocelyn A Silvester, Daniel A Leffler, Javier Villafuerte Galvez, Ciaran P Kelly, Olga Pozdnyakova, Sarah Glover, Jonathan J Lyons Reviewer for abstract category 803--Emerging Tools, Techniques, and Artificial Intelligence in Hematology , Am J Gastroenterol. 2025 May 14. doi: 10.14309/ajg.0000000000003537. Epub ahead of print. PMID: 40367491.: 2025

Obiorah I, McCall CM, Balmaceda A, Salansky S, Agarwal A, Pozdnyakova O. An 18-Year Review of Hemoglobinopathy Proficiency Testing: Recommendations From the College of American Pathologists Hematology and Clinical Microscopy Committee. , Arch Pathol Lab Med. 2025 Jan 13. doi: 10.5858/arpa.2024-0386-CP. Epub ahead of print. PMID: 39799968.: 2025

Olga Pozdnyakova and Carlo Brugnara Hematology Laboratory in the Digital and Automation Age , Clin Lab Med. 2024 Sep;44(3):xiii-xiv. doi: 10.1016/j.cll.2024.06.001. Epub 2024 Jun 18. PMID: 39089759.: 2024

Castells M, Giannetti MP, Hamilton MJ, Novak P, Pozdnyakova O, Nicoloro-SantaBarbara J, Jennings SV, Francomano C, Kim B, Glover SC, Galli SJ, Maitland A, White A, Abonia JP, Slee V, Valent P, Butterfield JH, Carter M, Metcalfe DD, Akin C, Lyons JJ, Togias A, Wheatley L, Milner JD. Mast cell activation syndrome: Current understanding and research needs. , J Allergy Clin Immunol. 2024 Aug;154(2):255-263. doi: 10.1016/j.jaci.2024.05.025. Epub 2024 Jun 6. PMID: 38851398.: 2024

Ryou H, Sirinukunwattana K, Wood R, Aberdeen A, Rittscher J, Weinberg OK, Hasserjian R, Pozdnyakova O, Peale F, Higgins B, Lundberg P, Trunzer K, Harrison CN, Royston D. Quantitative analysis of bone marrow fibrosis highlights heterogeneity in myelofibrosis and augments histological assessment: An Insight from a phase II clinical study of zinpentraxin alfa. , Hemasphere. 2024 Jun 13;8(6):e105. doi: 10.1002/hem3.105. PMID: 38884042; PMCID: PMC11176199.: 2024

Lewis JE, Pozdnyakova O. Advances in Bone Marrow Evaluation. , Lewis JE, Pozdnyakova O. Advances in Bone Marrow Evaluation. Clin Lab Med. 2024 Sep;44(3):431-440. doi: 10.1016/j.cll.2024.04.005. Epub 2024 Jun 4. PMID: 39089749.: 2024

Nichols MM, Pozdnyakova O. Snapper-Schneid bodies (coarse cytoplasmic granules) in a patient with multiply relapsed multiple myeloma. , Blood. 2024 Jun 13;143(24):2559. doi: 10.1182/blood.2024024221. PMID: 38869920.: 2024