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  • 1 Matthew J. Ryan Veterinary Hospital, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104.
  • | 2 Matthew J. Ryan Veterinary Hospital, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104.

A 13-year-old 6.3-kg (13.9-lb) spayed female Norwich Terrier was evaluated because of a 1-week history of progressive neurologic signs characterized by balance upset, circling, listlessness, and episodic head twitching. The dog had fallen into the owners' pool (neurologic signs had preceded this event). The dog had cutaneous indolent T-zone lymphoma with regional lymph node metastasis, which was managed with prednisone and chlorambucil and was reportedly static (8 months following diagnosis). Prednisone treatment had been discontinued 6 days prior to the evaluation. The dog had bilateral iris atrophy, a grade 2/6 systolic heart murmur, bilateral grade III/IV medial patellar luxation, and

Contributor Notes

Address correspondence to Dr. Petesch (scottpetesch@gmail.com).