The acinar pattern is representative of airspace disease. Seen are ill-defined, round or elliptical nodules measuring 4–8 mm. They have a characteristic “fluffy” appearance and may take on a patchy distribution, with a later tendency to coalesce into a lobar or segmental distribution (see images of a right middle lobe pneumonia under “Silhouette sign – RML”).
Coloured Atlas
- Cardiology & CVS
- Coloured Atlas – Dermatology
- Coloured Atlas – Endocrinology
- Gastroenterology (Coloured Atlas)
- Geriatric Medicine
- Coloured Atlas – Gynecology
- Coloured Atlas – Hematology
- Coloured Atlas – Infectious Disease
- Coloured Atlas – Nephrology
- Neurology
- Coloured Atlas – Neurosurgery
- Coloured Atlas – Obstetrics
- Coloured Atlas – Ophthalmology
- Coloured Atlas – Orthopedics
- Coloured Atlas – Otolaryngology
- Coloured Atlas – Pediatrics
- Coloured Atlas – Plastic Surgery
- Coloured Atlas – Rheumatology
- Urology