Bone scintigraphic diagnosis in acute frontal sinusitis

Area of Science:

• Nuclear Medicine
• Radiology
• Otolaryngology

Background:

• Acute frontal sinusitis diagnosis can be challenging.
• Traditional radiography may not always reveal the extent of inflammation.
• Bone scintigraphy offers a potential imaging modality for assessing sinus pathology.

Purpose of the Study:

• To evaluate the diagnostic utility of Technetium 99m Methylene Diphosphate bone scintigraphy in acute frontal sinusitis.
• To correlate scintigraphic findings with disease severity and clinical course.

Main Methods:

• Bone scintigraphy using Technetium 99m Methylene Diphosphate was performed on 21 patients.
• Ten patients had acute frontal sinusitis with a "fluid level" on radiography.
• Scintigraphic findings were compared with clinical presentation and radiographic data.

Main Results:

• Pathologic radioisotope accumulation was observed in 9 of 10 patients with acute frontal sinusitis.
• Marked accumulation correlated with a more severe clinical course.
• Radioisotope did not accumulate in controls or patients with mucosal swelling/cellulitis.

Conclusions:

• Bone scintigraphy is a valuable tool for diagnosing acute frontal sinusitis.
• Marked Technetium 99m Methylene Diphosphate uptake suggests significant inflammatory changes and predicts a severe clinical outcome.
• Routine use of bone scintigraphy is recommended for acute frontal sinusitis diagnosis.