X-ray Reference

Reference library

NIH Chest X-ray Reference Library

Browse reference chest X-rays from a curated NIH-derived subset, inspect represented labels, and jump into deeper reading where topic pages exist.

Source: Images in this library come from the NIH Chest X-ray dataset. Use the library to browse patterns and examples — not as a diagnostic tool.

Browse by topic

Atelectasis

Atelectasis means part of the lung is not fully expanded. It can happen from shallow breathing, mucus blockage, or pressure around the lung and is not the same thing as an infection by itself.

View image examples Open topic page

Cardiomegaly

Cardiomegaly means the heart appears enlarged on the chest X-ray. It is a descriptive imaging finding that can be related to heart strain, chronic pressure or volume changes, or even projection effects.

View image examples Open topic page

Consolidation

Consolidation refers to air-space filling that makes part of the lung appear denser on imaging.

View image examples Open topic page

COPD / Emphysema

COPD and emphysema are chronic lung diseases that can change chest X-ray appearance but are not diagnosed by X-ray alone.

View image examples Open topic page

Fracture

Fracture is a break or structural disruption in bone that may be obvious or subtle on X-ray.

Image samples not available yetOpen topic page

Heart Failure

Heart failure is a clinical syndrome in which the heart cannot pump or fill effectively enough to meet the body’s needs.

Image samples not available yetOpen topic page

Lung Opacity

Lung opacity is a broad imaging term for an area of increased density in the lung.

Image samples not available yetOpen topic page

Mass

A mass is a larger focal opacity or lesion seen on the image. It is a descriptive finding that can have several causes and usually needs more imaging or clinical context to characterize.

View image examples Open topic page

Nodule

A nodule is a small rounded opacity in the lung or chest field. It is a descriptive imaging finding that can be benign or more concerning depending on size, appearance, and context.

View image examples Open topic page

Pleural Effusion

Pleural effusion means extra fluid has collected around the lung in the pleural space. It can happen with heart problems, infection, inflammation, or other underlying conditions.

View image examples Open topic page

Pneumonia

Pneumonia is an infection of the lung tissue, often caused by bacteria, viruses, or less commonly fungi. On chest X-ray it can appear as focal or patchy air-space opacity, though imaging alone does not always prove the cause.

View image examples Open topic page

Pneumothorax

Pneumothorax means air is present outside the lung in the pleural space, which can allow part of the lung to collapse. It is an important imaging finding because the size and clinical impact can vary widely.

View image examples Open topic page

Pulmonary Edema

Pulmonary edema refers to fluid accumulation within the lungs, often linked to cardiac or noncardiac causes.

Image samples not available yetOpen topic page

Support Devices

Support devices on chest X-ray include lines, tubes, and implanted hardware whose position may affect safety and management.

Image samples not available yetOpen topic page

Tuberculosis

Tuberculosis is an infectious disease that can affect the lungs and create chest imaging abnormalities, but imaging alone cannot confirm it.

Image samples not available yetOpen topic page

Finding

All findings Atelectasis Cardiomegaly ConsolidationEdemaEffusion Emphysema Fibrosis Hernia

Showing up to 90 reference images for Edema.

PAT-5B86 · IMG-009

Edema
PAT-5B86 · IMG-009
PA

PAT-24D9 · IMG-006

Edema
PAT-24D9 · IMG-006
AP

PAT-E828 · IMG-004

Edema
PAT-E828 · IMG-004
AP

PAT-E828 · IMG-005

Edema
PAT-E828 · IMG-005
AP

PAT-46FC · IMG-002

Edema
PAT-46FC · IMG-002
AP

PAT-46FC · IMG-004

Edema
PAT-46FC · IMG-004
AP

PAT-8DD3 · IMG-001

Edema
PAT-8DD3 · IMG-001
AP

PAT-A6E0 · IMG-017

Edema
PAT-A6E0 · IMG-017
AP

PAT-A6E0 · IMG-027

Edema
PAT-A6E0 · IMG-027
AP

PAT-A6E0 · IMG-028

Edema
PAT-A6E0 · IMG-028
AP

PAT-3BDB · IMG-005

Edema
PAT-3BDB · IMG-005
AP

PAT-E321 · IMG-005

Edema
PAT-E321 · IMG-005
AP

PAT-19D6 · IMG-003

Edema
PAT-19D6 · IMG-003
AP

PAT-F15E · IMG-002

Edema
PAT-F15E · IMG-002
PA

PAT-2CE4 · IMG-003

Edema
PAT-2CE4 · IMG-003
AP

PAT-2CE4 · IMG-006

Edema
PAT-2CE4 · IMG-006
AP

PAT-24A4 · IMG-000

Edema
PAT-24A4 · IMG-000
AP

PAT-245B · IMG-027

Edema
PAT-245B · IMG-027
AP

PAT-BDE6 · IMG-003

Edema
PAT-BDE6 · IMG-003
AP

PAT-F40F · IMG-002

Edema
PAT-F40F · IMG-002
AP

PAT-82BE · IMG-003

Edema
PAT-82BE · IMG-003
AP

PAT-98BC · IMG-003

Edema
PAT-98BC · IMG-003
AP

PAT-6E53 · IMG-008

Edema
PAT-6E53 · IMG-008
AP

PAT-C557 · IMG-002

Edema
PAT-C557 · IMG-002
AP

PAT-71B2 · IMG-015

Edema
PAT-71B2 · IMG-015
AP

PAT-F6FF · IMG-031

Edema
PAT-F6FF · IMG-031
AP

PAT-F6FF · IMG-037

Edema
PAT-F6FF · IMG-037
AP

PAT-A035 · IMG-014

Edema
PAT-A035 · IMG-014
AP

PAT-821B · IMG-014

Edema
PAT-821B · IMG-014
AP

PAT-79BE · IMG-001

Edema
PAT-79BE · IMG-001
AP

PAT-7E19 · IMG-000

Edema
PAT-7E19 · IMG-000
AP

PAT-1163 · IMG-002

Edema
PAT-1163 · IMG-002
AP

PAT-A0FD · IMG-025

Edema
PAT-A0FD · IMG-025
AP

PAT-5576 · IMG-002

Edema
PAT-5576 · IMG-002
PA

PAT-E21A · IMG-002

Edema
PAT-E21A · IMG-002
AP

PAT-3578 · IMG-011

Edema
PAT-3578 · IMG-011
AP

PAT-CB5C · IMG-002

Edema
PAT-CB5C · IMG-002
AP

PAT-CB5C · IMG-003

Edema
PAT-CB5C · IMG-003
AP

PAT-5CF6 · IMG-042

Edema
PAT-5CF6 · IMG-042
AP

PAT-5CF6 · IMG-043

Edema
PAT-5CF6 · IMG-043
AP

PAT-5CF6 · IMG-047

Edema
PAT-5CF6 · IMG-047
AP

PAT-DA36 · IMG-031

Edema
PAT-DA36 · IMG-031
AP

PAT-F08F · IMG-005

Edema
PAT-F08F · IMG-005
AP

PAT-F08F · IMG-006

Edema
PAT-F08F · IMG-006
AP

PAT-4A4E · IMG-012

Edema
PAT-4A4E · IMG-012
AP

PAT-FE6C · IMG-004

Edema
PAT-FE6C · IMG-004
AP

PAT-96AD · IMG-005

Edema
PAT-96AD · IMG-005
AP

PAT-96AD · IMG-006

Edema
PAT-96AD · IMG-006
AP

PAT-96AD · IMG-007

Edema
PAT-96AD · IMG-007
AP

PAT-349A · IMG-000

Edema
PAT-349A · IMG-000
AP

PAT-E7CC · IMG-047

Edema
PAT-E7CC · IMG-047
AP

PAT-D030 · IMG-008

Edema
PAT-D030 · IMG-008
AP

PAT-07BF · IMG-015

Edema
PAT-07BF · IMG-015
AP

PAT-3B71 · IMG-007

Edema
PAT-3B71 · IMG-007
AP

PAT-22CC · IMG-003

Edema
PAT-22CC · IMG-003
PA

PAT-6FBE · IMG-000

Edema
PAT-6FBE · IMG-000
AP

PAT-50E2 · IMG-001

Edema
PAT-50E2 · IMG-001
AP

PAT-50E2 · IMG-002

Edema
PAT-50E2 · IMG-002
AP

PAT-9F4F · IMG-007

Edema
PAT-9F4F · IMG-007
AP

PAT-4EDA · IMG-003

Edema
PAT-4EDA · IMG-003
AP

PAT-028F · IMG-004

Edema
PAT-028F · IMG-004
AP

PAT-028F · IMG-010

Edema
PAT-028F · IMG-010
AP

PAT-E88D · IMG-006

Edema
PAT-E88D · IMG-006
AP

PAT-E88D · IMG-007

Edema
PAT-E88D · IMG-007
AP

PAT-DF6A · IMG-051

Edema
PAT-DF6A · IMG-051
AP

PAT-E4B7 · IMG-000

Edema
PAT-E4B7 · IMG-000
PA

PAT-4B68 · IMG-003

Edema
PAT-4B68 · IMG-003
AP

PAT-2B2F · IMG-001

Edema
PAT-2B2F · IMG-001
AP

PAT-2B2F · IMG-002

Edema
PAT-2B2F · IMG-002
AP

PAT-2B2F · IMG-003

Edema
PAT-2B2F · IMG-003
AP

PAT-9AAD · IMG-012

Edema
PAT-9AAD · IMG-012
AP

PAT-E88F · IMG-009

Edema
PAT-E88F · IMG-009
AP

PAT-E88F · IMG-021

Edema
PAT-E88F · IMG-021
AP

PAT-E88F · IMG-022

Edema
PAT-E88F · IMG-022
AP

PAT-E7FB · IMG-025

Edema
PAT-E7FB · IMG-025
AP

PAT-E7FB · IMG-026

Edema
PAT-E7FB · IMG-026
AP

PAT-D517 · IMG-002

Edema
PAT-D517 · IMG-002
AP

PAT-D517 · IMG-007

Edema
PAT-D517 · IMG-007
PA

PAT-6BA2 · IMG-001

Edema
PAT-6BA2 · IMG-001
AP

PAT-6BA2 · IMG-002

Edema
PAT-6BA2 · IMG-002
AP

PAT-6CE9 · IMG-005

Edema
PAT-6CE9 · IMG-005
AP

PAT-6CE9 · IMG-006

Edema
PAT-6CE9 · IMG-006
AP

PAT-6CE9 · IMG-007

Edema
PAT-6CE9 · IMG-007
AP

PAT-6BCD · IMG-012

Edema
PAT-6BCD · IMG-012
AP

PAT-6BCD · IMG-013

Edema
PAT-6BCD · IMG-013
AP

PAT-9F7F · IMG-004

Edema
PAT-9F7F · IMG-004
PA

PAT-805F · IMG-005

Edema
PAT-805F · IMG-005
AP

PAT-252B · IMG-013

Edema
PAT-252B · IMG-013
PA

PAT-252B · IMG-014

Edema
PAT-252B · IMG-014
AP

PAT-8CA1 · IMG-010

Edema
PAT-8CA1 · IMG-010
AP