Imaging Diagnosis—Use Of Radiography And Computed Tomography In The Diagnosis Of A Mineralized Yolk Sac In A Brown Kiwi (Apteryx Mantelli)

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Wightman P, Cohen EB, Hunter S, et al.

Veterinary Radiology & Ultrasound 2015;56:E40-E43.

A 12-day-old Brown Kiwi (Apteryx mantelli) was presented with anorexia, torticollis, head-tilt, and coelomic distension. Radiographs showed an ill-defined, fat-opaque, coelomic mass displacing viscera craniodorsally. Curvilinear mineral opacities were superimposed over the ventral aspect of the mass. Computed tomography demonstrated the presence of mineral within the periphery of a fat attenuating mass consistent with a retained yolk sac. A deutectomy (yolk sac excision) was performed. Histopathology of the excised tissue confirmed the diagnosis of a retained yolk sac with multifocal mineralization.