Intraspinal cysts of the L6-L7 and L7-S1 articular process joints in a six-year-old neutered female German Shepherd Dog were diagnosed using magnetic resonance (MR) imaging. Histopathology provided a diagnosis of ganglion cysts. Clinical, laboratory, radiographic and MR imaging findings are described. Briefly, radiographic findings revealed lumbarization of the first sacral vertebra, and fusion of the first caudal vertebra to the sacrum. In addition, spondylosis and articular process osteoarthrosis occurred at L6-L7 and L7-S1. MR imaging revealed multiple, well encapsulated structures ranging in size from 3-10 mm in diameter which were found to arise from the L6-L7 and L7-S1 articular process joints. These cysts had signal intensities that varied from hyperintense to the cerebrospinal fluid (CSF) on T1 weighted images to isointense to CSF on T2 weighted images. Decompressive surgery in conjunction with arthrodesis of these joints resulted in resolution of clinical signs. The dog remained pain-free 1 1/2 years following surgical therapy.
Increased sensitivity to adverse sequelae of CPB may be associated with small patient size. Further evaluation is necessary before routine clinical application of low flow hypothermic CPB in this patient population.
CASE DESCRIPTION A 13-month-old castrated male cat was evaluated for a large, spontaneously developed cutaneous laceration over the left scapular region. The cat had a history of severe gingivostomatitis, conjunctivitis, giardiasis, and feline herpesvirus infection and had received systemic glucocorticoid treatment for 7 weeks prior to evaluation. CLINICAL FINDINGS Physical examination revealed a 10 × 7-cm full-thickness cutaneous laceration over the left scapular region, extremely thin skin, crusts over the dorsal aspect of the neck and base of the skull, medially curling pinnae, and moderate gingivostomatitis. TREATMENT AND OUTCOME Staged wound closure was performed with a combination of daily wound cleaning and debridement, tension and appositional sutures, and wet-to-dry and nonadherent dressings initially with a bacitracin, neomycin, and polymyxin B ointment and then with a 30:1 mixture of silver sulfadiazine and insulin. Multiple additional lesions developed and were treated in the same manner. Complete closure and resolution of all cutaneous lesions was achieved in 9 weeks. CLINICAL RELEVANCE Cats are fairly resistant to the adverse effects of glucocorticoid treatment, and iatrogenic hyperadrenocorticism is rarely reported. This case demonstrated that acquired skin fragility syndrome secondary to iatrogenic hyperadrenocorticism can develop following short-term systemic glucocorticoid administration and that large cutaneous wounds associated with this condition can be successfully managed and closed by means of the reported methods. The prognosis for skin recovery in cats with acquired skin fragility syndrome may be more favorable than previously reported.
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