Panosteitis

Case contributed by Allison L Zwingenberger
Diagnosis certain

Presentation

Chronic shifting Lameness. Pain on left hip extension.

Patient Data

Age: 8 months
Gender: Male
Category: Domestic dog
Organism: German shepherd dog

Skeletal survey

x-ray

Left Humerus and proximal Antebrachium: The medulla of the left humeral diaphysis shows a mildly increased opacity compared to the right medulla. There is marked increase in medullary opacity in the mid and distal humeral diaphysis.

Right humerus: The soft tissues and osseous structures are normal.

Pelvis and proximal pelvic limbs: The diaphysis of the left femur shows a marked sclerosis, with a sharp transition to normal medulla on the lateral projection.

Impression: Panosteitis.

Case Discussion

Radiographic findlings are consistent with panosteitis affecting the left humerus, radius und femur. Panosteitis is a condition of young dogs characterized by shifting lameness if multiple limbs are affected. The medullary cavity becomes sclerotic and opaque, which is pathognomonic for the disease.

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