Computed tomography appearances of the lung parenchyma in pulmonary hypertension

Author:

Foley Robert W1,Kaneria Nirav2,Ross Rob V MacKenzie2,Suntharalingam Jay2,Hudson Benjamin J1,Rodrigues Jonathan CL1,Robinson Graham1

Affiliation:

1. Department of Radiology, Royal United Hospitals Bath NHS Foundation Trust, Combe Park, Avon, Bath, United Kingdom

2. Department of Respiratory Medicine, Royal United Hospitals Bath NHS Foundation Trust, Combe Park, Avon, Bath, United Kingdom

Abstract

Computed tomography (CT) is a valuable tool in the workup of patients under investigation for pulmonary hypertension (PH) and may be the first test to suggest the diagnosis. CT parenchymal lung changes can help to differentiate the aetiology of PH. CT can demonstrate interstitial lung disease, emphysema associated with chronic obstructive pulmonary disease, features of left heart failure (including interstitial oedema), and changes secondary to miscellaneous conditions such as sarcoidosis. CT also demonstrates parenchymal changes secondary to chronic thromboembolic disease and venous diseases such as pulmonary venous occlusive disease (PVOD) and pulmonary capillary haemangiomatosis (PCH). It is important for the radiologist to be aware of the various manifestations of PH in the lung, to help facilitate an accurate and timely diagnosis. This pictorial review illustrates the parenchymal lung changes that can be seen in the various conditions causing PH.

Publisher

British Institute of Radiology

Subject

Radiology Nuclear Medicine and imaging,General Medicine

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