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Brachymetacarpalia
Joseph Junewick, MD FACR
over 7 years ago
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Sinolith

Case Detail

Anatomy: Neck-Face
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Infectious-Inflammatory
Created: over 3 years ago
Updated: about 1 year ago
Tags: PEDS
Modality/Study Types: CT
Activities:
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History

14 year old with chronic sinus symptoms.


Case Images


Diagnosis

Sinolith

Findings

CT – Axial and coronal images demonstrate sinoperiosteal ingrowth, mucosal thickening and numerous maxillary ossified concretions.

Discussion

Intrasinus calcification may be the result of many different etiologies. The calcification in fungal sinusitis develops from metabolic deposits of calcium phosphate within the necrotic mycelial mass. The CT appearance of fungal calcification may be fine and punctate early and dense concretions late. The central location of the calcification can be explained by the fact that the calcification develops within the mycelial mass. Dystrophic calcification or ossification can develop in other inflammatory, conditions tumor, and trauma. The calcification in chronic sinusitis seems to occur near the mucoperiosteal zone of the sinus that has been repeatedly affected by a chronic inflammatory process. Histologic examination of the intrasinus round or eggshell calcific densities found on CT scans showed them to be ossifications rather than calcifications.

Reference

Soon JH, Na DG, Byun HS, et al. Calcification in chronic maxillary sinusitis: Comparison of DT findings with histopathological results. AJNR (1999); 20:571-574.



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