A CT PNS (Computed Tomography of Paranasal Sinuses) is a specialized imaging procedure focused on capturing detailed images of the paranasal sinuses. These sinuses are air-filled cavities located within the bones of the skull around the nose. A CT scan of the paranasal sinuses is commonly used to diagnose and evaluate various conditions affecting this area. Here are some reasons why a CT PNS might be performed and the conditions it can help identify:
- Sinusitis:
- Acute Sinusitis: Inflammation of the paranasal sinuses, often due to a bacterial or viral infection.
- Chronic Sinusitis: Persistent inflammation lasting for an extended period.
- Nasal Polyps:
- Polypoid Changes: Visualization and characterization of soft tissue growths in the nasal and sinus cavities.
- Deviated Septum:
- Nasal Septum Deviation: Identification of a displacement or curvature of the nasal septum, which can affect airflow.
- Congenital Anomalies:
- Structural Abnormalities: Detection of congenital conditions or structural variations in the paranasal sinuses.
- Trauma:
- Fractures: Assessment of fractures in the bones surrounding the sinuses, often occurring due to trauma.
- Tumors:
- Benign Tumors: Visualization and characterization of non-cancerous growths in the sinus cavities.
- Malignant Tumors: Identification of cancerous lesions affecting the paranasal sinuses.
- Cysts and Mucoceles:
- Retention Cysts: Identification of cystic structures that may develop within the sinuses.
- Mucoceles: Cysts filled with mucus, typically arising from blocked sinus drainage.
- Infections:
- Fungal Infections: Identification of fungal growths within the sinuses.
- Abscesses: Collection of pus within the sinuses, often associated with infections.
- Allergic Fungal Sinusitis (AFS):
- Fungal Allergies: Identification of fungal elements in the sinuses in individuals with allergic reactions.
- Evaluation of Sinus Surgery:
- Preoperative Planning: CT PNS is often used to assess the anatomy and extent of sinus disease before sinus surgery.
During a CT PNS, the patient lies on a table that moves through the CT scanner, which takes a series of X-ray images from different angles. The information is processed by a computer to create detailed cross-sectional images of the paranasal sinuses.
The interpretation of CT PNS images is typically performed by a radiologist, who provides detailed information to guide further medical management. If you have symptoms related to sinus issues or have been advised to undergo a CT PNS, it’s important to consult with a healthcare professional for a proper evaluation and diagnosis.
