SINUS COSTOMEDIASTINALIS Meaning and
Definition
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Sinus costomediastinalis is a medical term that refers to a potential cavity or space located between the costal pleura and the mediastinal pleura in the chest cavity. The costal pleura is the serous membrane that lines the inner surface of the rib cage, while the mediastinal pleura is the serous membrane that covers the mediastinum (the space between the lungs).
The sinus costomediastinalis is an anatomic feature that arises due to the curvature of the ribs as they conform to the shape of the thoracic cage. This results in a potential space between the costal pleura and the mediastinal pleura. The sinus costomediastinalis may vary in appearance and size among individuals, and it does not usually have a direct clinical significance.
However, this anatomical structure may become important in certain clinical situations, such as during thoracic surgeries or when analyzing imaging studies. In surgical procedures, understanding the presence of the sinus costomediastinalis is essential to avoid accidental injury to the pleura or surrounding structures. Furthermore, in radiological examinations, the presence of the sinus costomediastinalis can be a normal anatomical variant that should not be confused with pathological conditions.
In summary, the term sinus costomediastinalis refers to a potential space or cavity located between the costal pleura and the mediastinal pleura in the chest cavity. While it generally lacks clinical significance, it is important to be aware of its existence when interpreting imaging studies or performing thoracic surgeries.
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A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SINUS COSTOMEDIASTINALIS
Etymology of SINUS COSTOMEDIASTINALIS
The term "sinus costomediastinalis" is a Latin term commonly used in anatomy. To break down its etymology:
1. Sinus: In Latin, "sinus" originally referred to a curve or a bend. In anatomy, it is used to describe a relatively open space or cavity within the body.
2. Costa: Also derived from Latin, "costa" means "rib". In this context, it relates to the ribs or the thoracic cage.
3. Mediastinalis: Again, from Latin, "mediastinalis" pertains to the region called the mediastinum. The mediastinum is the central compartment of the thoracic cavity, located between the lungs. It contains various structures, including the heart, great vessels, and others.
