1. Computed tomographic finding of bilateral optic nerve head drusen in a dog – a case report
- Author
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Niranjana, Chandrasekaran, Shafiuzama, Mohamed, Chandrasekara Iyer, Ramani, Niranjana, Chandrasekaran, Shafiuzama, Mohamed, and Chandrasekara Iyer, Ramani
- Abstract
Optic nerve head drusen are acellular calcified deposits in the optic nerve head reported in humans. A six year old, male, Rottweiler dog with a history of respiratory distress and epistaxis for the previous two months was anaesthetised and a computed tomographic scan of the head was performed. The axial view of the computed tomography scan with a slice thickness of 1mm was viewed in a soft tissue window (380x40 HU). There was an incidental discovery of a characteristic discrete round hyper dense area in the optic nerve head region in both eyes during the routine computed tomographic scan. The Hounsfield Unit of the optic nerve head drusen in the right eye measured 91 HU, of 2 mm2 and in the left eye 131 HU of 1 mm2 confirming the diagnosis of optic nerve head drusen. To the authors’ knowledge, this is the first report of optic nerve head drusen in a dog., Kalcifikacije optičkog živca su acelularne kalcificirane naslage koje se pojavljuju u ljudi. Pas pasmine rotvajler u dobi od šest godina, s anamnezom respiratornog distresa i epistakse u posljednja dva mjeseca, anesteziran je te je učinjena kompjutorizirana tomografija (CT) glave. CT snimka u aksijalnom prikazu debljine presjeka 1 mm prikazana je u mekotkivnom prozoru (380 x 40 HU). Rutinskim su CT snimanjem otkrivena diskretna okruglasta hiperdenzna područja u optičkom živcu oba oka. Kalcifikacija optičkog živca lijevog oka bila je veličine 91 HU i 2 x 2 mm, a lijevog oka 131 HU i 1 x 2 mm. Prema autorovim saznanjima ovo je prvi prikaz kalcifikacije optičkog živca u pasa.
- Published
- 2023