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Update of spinal tumors in dogs
Disk problems are more common in dogs but also spinal neoplasias are not too rare and can exactly mimic their symptoms. This excellent study summarizes important data like postoperative survival times and prognostic indicators for survival. Fascinating!

The current management of dogs with spinal canal neoplasia in a large veterinary institution was evaluated.

Postoperative survival time and prognostic indicators for survival were examined. Spinal neoplasms in dogs and humans also were compared.

Thirty-seven cases with histologically confirmed spinal tumors were included in the study. The cervical region was affected most commonly, and 23 (62%) of 37 cases had extradural tumors.

A hemilaminectomy or a dorsal laminectomy was performed in each case; three cases received adjuvant treatment.

Twelve (32%) cases were euthanized at the time of surgery, and two died immediately after surgery. One dog was euthanized 20 days after surgery because of persistent clinical signs. Twenty-two cases were followed postoperatively; nine different types of primary tumors were confirmed by histological examination of tissue specimens from these 22 cases, and three cases had metastatic lesions.

The median survival time of these 22 cases was 240 days.

Twelve (32%) of the 37 cases had nerve-sheath tumors; the median survival time for these 12 cases was 180 days.

No prognostic indicators were identified.

However, median survival times of cases with benign versus malignant tumor types were 1,410 days and 180 days, respectively (p of 0.07).

Four cases each had a myxoma/myxosarcoma, a tumor previously unreported in the spinal canal in dogs.



Source: MS Levy, AS Kapatkin, AK Patnaik, GN Mauldin, and GE Mauldin (1997): Spinal tumors in 37 dogs: clinical outcome and long-term survival (1987-1994). In: Journal of the American Animal Hospital Association, Vol 33, Issue 4, 307-312




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SMALL ANIMAL PRACTICE

Pyothorax in dogs and cats - a clinical reviewmembers
Pyothorax, also known as thoracic empyema, is characterized by the accumulation of septic purulent fluid within the pleural space. This recently published summary reviews the current literature in reference to the pathophysiology, diagnosis, and treatment of pyothorax in dogs and cats.

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