Calcium phosphate in aspergillosis of the maxillary sinus.
The unique appearance of apatite in fungus balls of aspergillosis in the maxillary sinus was investigated using scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray microdiffraction and Fourier transform infrared spectroscopy (FT-IR). Rod-shaped fragments with tubular structures, and globular vesicles covered with conidia were observed in the fungus balls. Massive fragments of a solid substance were demonstrated inside the fungus balls. Calcium and phosphate were detected in necrotic areas of the fungus balls by EDS. X-ray microdiffraction and FT-IR showed the presence of an apatite-like substance, but failed to demonstrate the presence of calcium oxalate crystals usually found in such fungus balls.
Tanaka
H
H
Department of Oral Pathology, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
Sakae
T
T
Mishima
H
H
Yamamoto
H
H
D001228:Aspergillosis / Q000378:metabolism* / Q000473:pathology; D002130:Calcium Phosphates / Q000032:analysis* / Q000378:metabolism; D005260:Female; D006801:Humans; D008443:Maxillary Sinus / Q000737:chemistry* / Q000378:metabolism / Q000473:pathology; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000378:metabolism / Q000473:pathology; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D002130:Calcium Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous