Related Experiment Video
Updated: Mar 26, 2026

Procoagulant Platelet Characterization by Measuring Phosphatidylserine Exposure and Microvesicle Release from Human Purified Platelets
Published on: November 29, 2024
A Severe Congenital Neutropenia Type 4 Case (G6PC3 Mutation) Presented With Large Platelets in the Peripheral Smear
Meriç Kaymak Cihan1, Fatih Bolat, Hüseyin Onay
1Departments of *Pediatrics, Division of Hematology and Oncology †Pediatrics, Division of Neonatology §Pediatrics, Faculty of Medicine, Cumhuriyet University, Sivas ‡Department of Medical Genetics, Faculty of Medicine, Ege University, İzmir, Turkey.
Abstract:
Severe congenital neutropenia type 4 is a disorder of the hematopoietic system associated with mutations in the glucose-6-phosphatase catabolic 3 (G6PC3) gene. This disorder is characterized by neutropenia, congenital heart defects, urogenital malformations, and prominent superficial veins. To our knowledge, although intermittent thrombocytopenia is observed in this mutation, the coexistence of large thrombocytes is rarely seen. Here we present a case of severe congenital neutropenia type 4 with G6PC3 mutation and large platelets in the peripheral smear.
Related Concept Videos
Structure and Function of Platelets
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
Formation of the Platelet Plug
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...

