Chest X-Ray: Normal Variants vs. Pathology — A Visual Reference

Radiology Masterclass published a visual guide to common anatomical variants on chest radiography that can mimic pathology, ranging from bone islands to normal vascular contours, to reduce false-positive interpretations by radiologists and trainees.

• This is an educational blog post, not original research, with no reported patient or reader sample size; it is a curated image atlas of normal variants.
• The guide focuses on visual recognition of benign findings like rib variants, calcified costal cartilage, nipple shadows, and normal mediastinal contours.
• Limitation: It is a standalone teaching resource without external validation or an associated diagnostic-accuracy study.

RadPigeon summaries are original and for information only. They are not clinical advice.