Getting the right diagnosis for sinusitis is important to tell it apart from other conditions like the common cold, allergies, or migraines, and to figure out if it is acute, chronic, bacterial, or fungal. At Liv Hospital, we use a step-by-step approach that includes a careful exam, advanced imaging, and endoscopy to find the cause and choose the best treatment.
Send us all your questions or requests, and our expert team will assist you.
Diagnosis starts with a detailed medical history and a physical exam.
The physician will ask about the duration of symptoms to differentiate between acute (less than 4 weeks) and chronic (more than 12 weeks) sinusitis. Key questions involve the presence of “cardinal symptoms” such as purulent drainage, nasal obstruction, facial pain, and hyposmia. The doctor will also inquire about potential triggers, such as allergies, recent colds, or dental procedures. A history of previous treatments and their effectiveness is crucial for identifying resistant cases.
During the physical exam, the doctor will palpate (press) the face over the sinuses to check for tenderness. They will examine the inside of the nose using a handheld otoscope or a nasal speculum. Signs of sinusitis include red and swollen nasal tissue (turbinates), visible pus draining from the sinus openings, and postnasal drip in the back of the throat. The physician may also check the ears for fluid and the neck for swollen lymph nodes.
Nasal endoscopy is a gold standard diagnostic tool for evaluating chronic or recurrent sinusitis.
This involves inserting a thin, flexible tube with a light and a camera (endoscope) into the nose. It allows the doctor to visually inspect the deeper parts of the nasal cavity and the openings of the sinuses (ostiomeatal complex) that cannot be seen with a standard exam.
Endoscopy provides direct visualization of anatomical structures, such as a deviated septum, nasal polyps, or tumors. It can confirm the presence of purulent drainage emanating directly from the sinus ostia, a strong indicator of bacterial infection. In cases of chronic sinusitis, endoscopy is vital for assessing the extent of inflammation and for obtaining culture samples directly from the infection site, ensuring accurate identification of the pathogen.
When clinical exams and endoscopy are insufficient, or when complications are suspected, imaging is required.
Identifying the specific organism causing the infection is essential for targeted treatment, especially in chronic or resistant cases.
Since allergies are a major predisposing factor for sinusitis, identifying allergic triggers is part of the comprehensive evaluation.
It is essential to rule out other conditions that mimic sinusitis.
In severe cases, the evaluation must extend to checking for complications.
Intracranial Complications: Severe headache, neck stiffness, confusion, or high fever may indicate meningitis, brain abscess, or cavernous sinus thrombosis, requiring urgent imaging and hospitalization.
Send us all your questions or requests, and our expert team will assist you.
Doctors diagnose sinusitis based on symptoms, a physical exam of the nose and face, and, sometimes, a nasal endoscope to examine the nasal passages.
It is a quick procedure in which a doctor inserts a thin, flexible tube with a camera into your nose to check for blockages, polyps, or signs of infection deep in your sinuses.
No, a CT scan is usually reserved for chronic cases, recurring infections, or when surgery is being considered, not for an uncomplicated acute sinus infection.
Cultures are taken to identify the specific bacteria or fungi causing the infection, which helps in choosing the right antibiotic, especially if standard treatments have failed.
Yes, sinusitis symptoms can overlap with those of allergies, migraines, toothaches, and other headaches, so a thorough evaluation is needed to make the correct diagnosis.
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