title: Suprascapular nerve paralysis due to streptococcal meningoradiculitis in a cow.
abstract: A cow, presenting with lameness with atrophy of the right supraspinatus and infraspinatus muscles, was clinically diagnosed with suprascapular nerve paralysis. Histological examination revealed necrosuppurative lesions with Gram-positive cocci arranged in chains in multiple organs, including the cardiac valves, lungs, muscles, joints, brain, cerebral and spinal meninges. Spinal meningitis progressed into the roots of the right 6th to 8th cervical nerves. The suprascapular nerve showed partial loss of nerve fibers in the periphery, and innervated muscle fibers were atrophied. Bacterial culture of the cerebrospinal fluid revealed the presence of Streptococcus pyogenes. From these findings, the suprascapular nerve paralysis in this case was considered to result from meningoradiculitis associated with systemic streptococcal infection. This is a rare bovine case of suprascapular nerve paralysis due to central nerve damage of infectious cause.
authors.affiliation: Department of Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan. kmatsuda@rakuno.ac.jp
authors.forename: Kazuya
authors.initials: K
authors.lastname: Matsuda
authors.forename: Noe
authors.initials: N
authors.lastname: Sato
authors.forename: Kanako
authors.initials: K
authors.lastname: Sakaguchi
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Taguchi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Taniyama
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D005260:Female; D005552:Forelimb / Q000294:innervation*; D008581:Meningitis / Q000150:complications / Q000382:microbiology / Q000662:veterinary*; D010523:Peripheral Nervous System Diseases / Q000150:complications / Q000382:microbiology / Q000662:veterinary*; D013290:Streptococcal Infections / Q000150:complications / Q000382:microbiology / Q000662:veterinary*; D013297:Streptococcus pyogenes