[Radiographic analysis for infarcted angiomatous polyps in maxillary sinus]

Area of Science:

• Radiology
• Otolaryngology
• Pathology

Background:

• Maxillary sinus cavernous hemangiomas are rare vascular tumors.
• Accurate diagnosis is crucial for effective management.

Purpose of the Study:

• To elucidate the CT and MRI imaging features of maxillary sinus cavernous hemangioma.
• To assist in the diagnosis of infarcted angiomatous polyps in the maxillary sinus.

Main Methods:

• Retrospective analysis of 27 surgically confirmed cases.
• Review of CT and MRI imaging, including enhanced scans.
• Correlation with clinical and pathological findings.

Main Results:

• Unilateral nasal obstruction was the predominant clinical symptom.
• CT showed sinus expansion, bone resorption, and vascular-like, progressive enhancement.
• MRI demonstrated irregular lesions with mixed signals, characteristic T2WI findings, and uneven enhancement.

Conclusions:

• Maxillary sinus cavernous hemangioma typically presents with unilateral nasal obstruction.
• Characteristic CT findings include sinus expansion, bone resorption, and specific enhancement patterns.
• MRI provides detailed lesion visualization, with T2WI and post-contrast sequences offering key diagnostic clues.