Could Red Cell Distribution Width be a Marker of Thyroid Cancer?

Area of Science:

• Endocrinology
• Oncology
• Hematology

Background:

• Thyroid nodules are common, and distinguishing between benign and malignant types is crucial for appropriate management.
• Red cell distribution width (RDW) is increasingly recognized as a potential inflammatory marker.
• Routine hemogram parameters, including RDW, offer a cost-effective approach for initial patient assessment.

Purpose of the Study:

• To investigate Red Cell Distribution Width (RDW) values in patients with benign or malignant thyroid nodules.
• To compare RDW levels in thyroid nodule patients with a healthy control population.
• To evaluate RDW as a potential indicator of malignancy in thyroid nodules.

Main Methods:

• A descriptive study was conducted retrospectively analyzing hemogram values of patients who underwent thyroid surgery for nodules.
• Data from November 2015 to February 2017 at Abant Izzet Baysal University Hospital were included.
• Patients with infectious or inflammatory diseases were excluded, and statistical analyses (One-way ANOVA, Kruskal-Wallis) were performed with significance at p<0.05.

Main Results:

• The median RDW in the malignant thyroid nodule group was 15.8, which was significantly higher than in the benign nodule group (15) and the control group (14) (p<0.001).
• This indicates a statistically significant elevation of RDW in patients with malignant thyroid nodules.

Conclusions:

• Elevated preoperative RDW in patients with thyroid nodules may alert physicians to the possibility of malignancy.
• RDW, as a cost-effective marker, can complement diagnostic tools like ultrasound and fine needle aspiration biopsy in differentiating malignant from benign thyroid nodules.