Hrct p+C
Reading File
Finding Sources
Finding Sources
The image shows the impression/findings section of an HRCT Chest with contrast report. Here is a clear explanation of each finding:
HRCT Chest with Contrast - Findings Explained
1. Plate-like Atelectatic Bands - Basal Segments of Both Lower Lobes
What it means:
Plate-like (also called "discoid" or "Fleischner's") atelectasis refers to thin, horizontal linear opacities in the lung, typically at the lung bases. These represent focal areas of collapsed or poorly aerated lung.
Why it happens:
- Reduced deep breathing (splinting due to pain, post-op, or diaphragmatic limitation)
- Mucus plugging of small airways
- Compressive effect from a raised diaphragm
- In this context, it is commonly associated with the sliding hiatus hernia noted below (raised left hemidiaphragm) or simply poor inspiratory effort
Clinical significance:
- Usually benign and reversible with physiotherapy and deep breathing exercises
- Not indicative of pneumonia or malignancy in isolation
- Can be seen in post-operative patients, GERD patients with chronic aspiration, or even incidentally
2. Few Subcentimetric Mediastinal and Pre-vascular Lymph Nodes
What it means:
These are small lymph nodes (< 1 cm in short-axis diameter) located in the mediastinum and in the pre-vascular space (anterior mediastinum, in front of the great vessels).
Why it matters:
- Lymph nodes < 1 cm are considered normal by size criteria on CT
- They are commonly reactive (responding to minor infection, inflammation, GERD, or any basal lung pathology)
- Since they are subcentimetric, they are NOT considered pathologically enlarged
- No malignant features are implied
Clinical significance:
- Radiologically benign/normal finding
- If there is a known malignancy elsewhere, follow-up may be warranted, but in isolation they are not alarming
- Often seen in smokers, patients with chronic lung changes, or post-infectious states
3. Sliding Hiatus Hernia - GE Junction Located Above the Crural Hiatus
What it means:
A sliding hiatus hernia (Type I hiatal hernia) is the most common type (>95% of hiatal hernias). In this condition:
- The gastroesophageal (GE) junction - normally located below the diaphragm - has migrated upward through the esophageal hiatus of the diaphragm into the chest
- The stomach slides up and down (hence "sliding")
On CT:
- GE junction is seen above the crural hiatus (the diaphragmatic opening)
- The cardia of the stomach is positioned in the posterior mediastinum/lower chest
Clinical significance:
- Associated with GERD (gastroesophageal reflux disease)
- Can cause heartburn, regurgitation, dysphagia
- May contribute to the basal atelectasis seen (by raising the left hemidiaphragm and limiting basal lung expansion)
- Management ranges from lifestyle modification + PPIs to surgical fundoplication (Nissen) in severe or refractory cases
Summary Table
| Finding | Location | Significance |
|---|---|---|
| Plate-like atelectasis | Bilateral lower lobe bases | Benign, reversible; associated with diaphragm elevation / poor inspiratory effort |
| Subcentimetric lymph nodes | Mediastinal + pre-vascular | Normal size; likely reactive; not pathological |
| Sliding hiatus hernia | GE junction above crural hiatus | Type I hernia; linked to GERD; common incidental finding |
Overall impression: This is largely an incidental/benign constellation of findings. The sliding hiatus hernia is the most clinically relevant finding and likely explains both the basal atelectasis (via left hemidiaphragm elevation) and possibly the reactive mediastinal lymph nodes (from chronic GERD/aspiration). No acute or sinister pathology is suggested by these findings alone.
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