Basic Concepts and Insights into Aortopulmonary Collateral Arteries in Congenital Heart Diseases.

Aortopulmonary collateral arteries are persistent embryological vessels supplying lung parenchyma in various cardiopulmonary diseases with underlying pulmonary hypoperfusion. Their identification and mapping are important because of associated clinical implications and tendency to affect the surgical outcome. This article describes the embryological development and clinical relevance of aortopulmonary collaterals in various congenital cardiopulmonary conditions, along with the significance for treatment planning.

IVC filters - Indications for placement and retrieval trends- experience from a tertiary referral centre in India type of submission- full paper.

Objectives: There is wide variation in the practice of IVC filter placement and retrievals. We conducted a retrospective study to identify the trends in placement and retrievals of IVC filters in a tertiary referral centre in India.

Methods: The data of patients obtained from our hospital records, in whom IVC filter was placed between 2010 and 2018, were analysed for demographics, indications for placement of IVC filter, underlying comorbidities, characteristics of the filters as well as the retrieval rates.

Ruptured abdominal aortic aneurysm with aortocaval fistula and embolic IVC thrombus-a rare clinical scenario detected on CT angiography.

Rupture with fistulization of an abdominal aortic aneurysm with the vena cava is a rare complication and typically presents with congestive cardiac failure. Embolization of a thrombus from the aneurysm into the vena cava can however present in the absence of failure symptoms which can make it difficult to diagnose clinically without cross sectional imaging.

Stenotic lesions of pulmonary arteries: imaging evaluation using multidetector computed tomography angiography.

Stenotic lesions of the pulmonary arteries can be congenital or acquired. Different etiologies may affect the pulmonary arteries, unilaterally or bilaterally, at different levels. The clinical scenario, age of presentation and the precipitating event may provide clues to the underlying etiology.

An unusual case of periaortitis mimicing aortic aneurysm with coronary artery involvement.

We hereby describe a rare case of coronary artery involvement in a patient with periaortitis which was mimicking an aortic aneurysm on computed tomography (CT). This case also highlights the role of CT in differentiating aortic pathologies to guide the management and also the importance of coronary evaluation in such patients.