Reticular interstitial pattern is one of the patterns of linear opacification in the lung. It can either mean a plain film or HRCT/CT feature.
Pathology
Causes
Reticulation can be subdivided by the size of the intervening pulmonary lucency into fine, medium and coarse. Diseases with a predominantly reticular pattern can be subdivided by the acuteness of their presentation.
-
predominantly reticular: acute, not a common pattern
-
pulmonary edema
- heart failure
- fluid overload
- nephropathy
- infection
- viral
- mycoplasma
- Pneumocystis
- malaria
- drug reactions
-
pulmonary edema
-
predominantly reticular: chronic
- post-infectious scarring
- tuberculosis (post-primary)
- histoplasmosis (chronic)
- coccidioidomycosis (chronic)
- Pneumocystis
- chronic interstitial edema
- mitral valve disease
- collagen vascular disorders
- rheumatoid lung
- scleroderma
- post-infectious scarring
- idiopathic pulmonary hemorrhage
- granulomatous disease
- pulmonary neoplasms
- lymphangitis carcinomatosis
- pulmonary lymphoma and other lymphocytic disorders
- lymphocytic interstitial pneumonitis
- inhalational lung disease
- drug reactions
- nitrofurantoin related lung changes
- chemotherapeutic agents
- amiodarone lung toxicity
- radiation pneumonitis
- idiopathic
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