Liesegang rings associated with a cystic lesion of the eyelid.
نویسندگان
چکیده
منابع مشابه
Wave optics of Liesegang rings.
Liesegang rings refract and reflect at the interface between the regions of the same gel but of different thickness. The incident and the refracted rings obey a refraction law analogous to the Snell's law of classical optics, with a reverse of the spacing coefficient being a counterpart of the refraction index. The wavelike behavior of the rings at the interface is explained by geometrical argu...
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Liesegang rings are concentric noncellular lamellar structures, rarely seen in vivo, occurring as a consequence of the accumulation of insoluble products in a colloidal matrix. These characteristic structures are a rare phenomenon usually found in association with cystic or inflammatory lesions and may be mistaken for parasites. The authors examined Liesegang rings from an inflammatory kidney l...
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Calcifying epithelial odontogenic tumor (CEOT) is a benign epithelial odontogenic tumor which is characterized by the presence of islands and sheets of epithelial cells, amyloid like material and calcifications. These calcifications have a concentric lamellar pattern because of which they have been known by some as liesegang rings. However, classic liesegang rings seen in other extragnathic sit...
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Dr. Ullman is from the University of Alabama at Birmingham. Drs. DiCarlo and Ferringer are from Geisinger Medical Center, Danville, Pennsylvania. The authors report no conflict of interest. Correspondence: David Ullman, MD ([email protected]). H&E, original magnification ×20 (inset, original magnification ×200). Eligible for 1 MOC SA Credit From the ABD This Dermatopathology Diagnosis article ...
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Liesagang-like rings (LR) are periodic structures with equally spaced radial striations formed by a process that involves diffusion, nucleation, flocculation or precipitation, and supersaturation. Being more common in vitro, on rare occasions also reported in vivo in association with inflammatory or cystic lesions and confused with parasites or calcification on needle aspirates. The current pap...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1995
ISSN: 0007-1161
DOI: 10.1136/bjo.79.7.706