What is Rasmussen aneurysm?
Rasmussen’s aneurysm is an inflammatory pseudo-aneurysmal dilatation of a branch of pulmonary artery adjacent to a tuberculous cavity. Life threatening massive hemoptysis from the rupture of a Rasmussen’s aneurysm is an uncommon yet life threatening complication of cavitary tuberculosis (TB).
How serious is a pulmonary aneurysm?
The occurrence of pulmonary artery aneurysm (PAA) is extremely rare in the clinical setting. Careful treatment should be considered because of the possibility of fatal complications including rupture, dissection, pulmonary embolism and heart failure.
What are the symptoms of a pulmonary aneurysm?
Reported symptoms include hemoptysis, shortness of breath, chest pain, palpitations or syncopal episodes (7-10). Additional symptoms attributed to extrinsic bronchial compression by a large PAA or PAPA may include cough, worsening dyspnea, cyanosis or pneumonia (10-12).
How is a pulmonary aneurysm treated?
Classification. PAAs can be classified into proximal (or central) PAAs and peripheral PAAs. Proximal PAAs involve the pulmonary trunk and the main right and left PAs. Proximal PAAs are defined as a diameter of over 4 cm in the PA trunk.
What is Pseudohemoptysis?
Pseudohemoptysis, or the appearance of red colored sputum without the presence of red blood cells, is a well-described manifestation of Serratia marcescens infection. This phenomenon is attributed to the organism’s production of the red pigment prodigiosin at room temperature (Fig. 1). Figure 1. a.
What is the difference between an aneurysm and a pseudoaneurysm?
A pseudoaneurysm, or pseudoaneurysm of the vessels, occurs when a blood vessel wall is injured and the leaking blood collects in the surrounding tissue. It is sometimes called a false aneurysm. In a true aneurysm, the artery or vessel weakens and bulges, sometimes forming a blood-filled sac.
What causes aneurysm in lung?
Pulmonary artery aneurysms (PAAs) are uncommon conditions that are most commonly caused by trauma (often iatrogenic), infections or Behcet’s disease (BD). Less common causes are pulmonary hypertension, congenital heart disease and neoplasm (1).
What happens when you have a pulmonary aneurysm?
Pulmonary embolism (PE) occurs when a blood clot gets lodged in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often start in the legs and travel up through the right side of the heart and into the lungs. This is called DVT .
What causes aneurysm in lungs?
What causes pulmonary aneurysm?
Pulmonary artery aneurysms and pseudoaneurysms are uncommon. Most are caused by trauma, often iatrogenic, infection, and Behçet’s syndrome. Less common causes include pulmonary hypertension, congenital heart disease, neoplasms, and connective tissue disease.
How is Pseudohemoptysis different from hemoptysis?
After confirming the presence of blood, an initial task is differentiating between hemoptysis, pseudohemoptysis (i.e., the spitting of blood that does not come from the lungs or bronchial tubes), and hematemesis (i.e., the vomiting of blood).
What is a Rasmussen aneurysm?
Rasmussen aneurysm. Rasmussen aneurysm (not to be confused with Rasmussen encephalitis) is an uncommon complication of pulmonary tuberculosis and represents a pulmonary artery aneurysm adjacent or within a tuberculous cavity.
What is Rasmussen dilatation of the pulmonary segment?
Often seen on contrasted chest images as a focal dilatation of one of the pulmonary segmentary arteries adjacent to tuberculous parenchymal change or a chronic tuberculous cavity. It is named after Danish physician Fritz Valdemar Rasmussen (1837-1877).
What is Valdemar Rasmussen syndrome?
It is named after Danish physician Fritz Valdemar Rasmussen (1837-1877). It is almost pathognomonic if present in the right clinical content and in the vicinity of a tuberculous cavity.