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Plain radiography

Home›MICA Image›Morphological semiology & imaging›Plain radiography

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← Morphological semiology & imaging

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7 sheets

A reference chest image described as normal. Source attribution retained; descriptive MICA reading.

Plain radiography

PA chest: reference image

A reference chest image described as normal.

Technique: Radiography
Observation: Review lungs, hila, mediastinum, heart and diaphragms.
Limitation: Radiographic normality does not prove absence of disease.

Pleural effusion · radiograph

Plain radiography

Pleural effusion · radiograph

Dependent opacity with costophrenic blunting and sometimes a meniscus; projection and position modify appearance.

Compartment: Pleural space
Finding: Costophrenic blunting
Contour: Possible meniscus
Complement: Thoracic ultrasound

Enlarged cardiac silhouette · radiograph

Plain radiography

Enlarged cardiac silhouette · radiograph

An enlarged cardiac silhouette requires projection-specific interpretation; AP may overestimate size.

Measurement: Cardiothoracic ratio
Appropriate projection: Inspiratory PA film
Usual threshold: Ratio >0.50 on PA
Confirmation: Appropriate cardiac assessment

Chest radiograph showing a focal peripheral right-lung opacity, with no visible name or personal information.

Plain radiography

Lobar consolidation: documented pneumonia

Focal pulmonary opacity in a pneumonia case; the radiograph alone does not identify the pathogen.

Appearance: Focal opacity
Side: Right lung
Source context: Lobar pneumonia
Limitation: Pathogen not identifiable

Pneumothorax · radiograph

Plain radiography

Pneumothorax · radiograph

Visceral pleural line with absent lung markings beyond it, interpreted according to projection.

Line: Visceral pleural edge
Peripheral region: Absent vascular markings
Projection: Upright or supine
Urgency: Assess clinical stability

The source attributes this radiograph to heart failure. Authentic document with original caption context retained.

Plain radiography

Pulmonary congestion: radiograph

The source attributes this radiograph to heart failure.

Observation: A broad cardiac silhouette accompanies bilateral basal abnormalities.
Limitation: Projection can magnify apparent heart size.

Chest radiograph showing an annotated right subdiaphragmatic gas crescent, without a visible identifier.

Plain radiography

Pneumoperitoneum: subdiaphragmatic free air

Extraluminal gas beneath the diaphragm; assess for perforation according to context.

Sign: Extraluminal gas
Landmark: Diaphragm–liver interface
Further imaging: CT according to stability
Priority: Assess for perforation