What is the Costophrenic sinus?

What is the Costophrenic sinus?

The costodiaphragmatic recess, also called the costophrenic recess or phrenicocostal sinus, is the posterolateral fringe of the pleural space, a potential space around the lung inside the pleural cavity.

What is Costophrenic sulcus in medical terms?

cos·to·phren·ic sul·cus the recess between the ribs and the lateral-most portion of the diaphragm, partially occupied by the most caudal part of the lung; seen on radiographs as the costophrenic angle.

What causes costophrenic angle blunting?

Blunting of the costophrenic angles is usually caused by a pleural effusion, as already discussed. Other causes of costophrenic angle blunting include lung disease in the region of the costophrenic angle, and lung hyperexpansion.

Why is maintenance of costophrenic angle important?

The acute angle that the tendinous diaphragmatic origins make with the body wall is termed the costophrenic angle. The maintenance of this angle is important to ensure that the diaphragm exerts a pull on the costal margin so as to move it superolaterally.

What are Hila?

Hila, or lung roots, are relatively complicated structures that consist mainly of the major bronchi and the pulmonary arteries and veins. The hilum of the lung is found on the medial aspect of each lung, and it is the only site of entrance or exit of structures associated with the lungs.

Why is Costophrenic angle important?

Assessing the costophrenic angles On a frontal chest X-ray the costophrenic angles should form acute angles which are sharp to a point. Costophrenic “blunting” is often due to the presence of a pleural effusion, but it can also be related to other pleural disease or lung disease.

What does acute Costophrenic angles mean?

Costophrenic (CP) angle or the costodiaphragmatic recess is one of the review areas in reading a chest radiograph systematically. Normally, the CP angle is acute and sharp. Isolated blunting of the CP angle is usually considered to represent pleural disease such as small pleural effusion or mild pleural thickening.

Is Frank frank bleeding a symptom of sinusitis?

Frank bleeding, such as occurs with a bloody nose, is not typical of sinusitis. Nasal stuffiness and facial pain, pressure or fullness are other hallmark symptoms of sinusitis, according to April 2015 guidelines published by the American Academy of Otolaryngology — Head and Neck Surgery 1.

Is opaque nasal discharge a symptom of sinusitis?

Opaque — as opposed to clear — nasal discharge is a hallmark symptom of sinusitis. Frank bleeding, such as occurs with a bloody nose, is not typical of sinusitis.

What causes blunting of the costophrenic angles?

Key points. Blunting of the costophrenic angles is usually caused by a pleural effusion, as already discussed. Other causes of costophrenic angle blunting include lung disease in the region of the costophrenic angle, and lung hyperexpansion.

What is the difference between costophrenic and sulcus?

costophrenic sulcus: the recess between the ribs and the lateral-most portion of the diaphragm, partially occupied by the most caudal part of the lung; seen on radiographs as the costophrenic angle. Sulci is just the plural form of the word sulcus, so more than one sulcus.