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1278  Renomegaly                                                                            Root Signature (Nerve)



            Renomegaly                                           Retinopathies
  VetBooks.ir            Normal Shape       Abnormal Shape       Common Systemic Disorders Affecting the Retina



            Unilateral   Compensatory       Non-diffuse neoplasia  Dog
             enlargement   hypertrophy      Abscess                Blastomycosis
                         Diffuse infiltrative   Cyst               Coccidioidomycosis
                           neoplasia (e.g.,   Hematoma             Cryptococcosis
                           lymphoma)        Polycystic kidney disease  Distemper
                         Edema/inflammation                        Ehrlichiosis
                         Perinephric pseudocysts                   Rocky Mountain spotted fever
                         Intracapsular hemorrhage                  Histoplasmosis
                         Hydronephrosis                            Systemic hypertension
                                                                   Larva migrans (Toxocara spp)
            Bilateral    Amyloidosis        Non-diffuse neoplasia  Leishmaniasis
             enlargement  Diffuse infiltrative   Polycystic kidney disease  Lymphoma
                           neoplasia                               Multiple myeloma
                         Edema/inflammation                        Toxoplasmosis
                         Perinephric pseudocysts                   Uveodermatologic syndrome
                         Hydronephrosis
                                                                 Cat
           Reproduced from the third edition in modified form.     Blastomycosis
                                                                   Cryptococcosis
           THIRD EDITION AUTHOR: Darcy H. Shaw, DVM, MVSc, MBA, DACVIM  FIP
                                                                   Histoplasmosis
                                                                   Multiple myeloma
                                                                   Systemic hypertension
                                                                   Lymphoma (both FeLV-positive and -negative)
                                                                   Toxoplasmosis
                                                                   Tuberculosis
            Respiratory Parasites
                                                                FeLV, Feline leukemia virus; FIP, feline infectious peritonitis.
                                                                Modified from Slatter D: Fundamentals of veterinary ophthalmology, St. Louis, 2001, Saunders.

            Parasite (Host)          Comment
            Aelurostrongylus abstrusus (cats)  Coughing, sneezing, lethargy possible
                                     but usually no signs
            Eucoleus aerophilus (formerly   Chronic cough or no clinical signs  Root Signature (Nerve)
            Capillaria aerophila) (dogs, cats)
            Crenosoma vulpis (wild canids;   Chronic cough clinically mimicking
            rarely dogs)             chronic sterile bronchitis
                                                                 Differential Diagnosis Item  Key Feature(s)
            Eucoleus boehmi (dogs, cats)  Chronic sneezing, nasal discharge,
                                     facial rubbing              Nerve sheath neoplasia  Insidious onset and progressive lameness
                                                                                        (usually forelimb) and atrophy followed by
            Filaroides hirthi (dogs only)  Breeding kennels; zinc sulfate flotation     neck pain; ipsilateral Horner’s syndrome
                                     is best (not Baermann)
                                                                                        and cutaneous trunci deficit possible
            Oslerus osleri (wild canids; rarely   Nodules in large airway mucosa;   Lymphoma  More common in cats; lymphoma often
            dogs)                    treatment difficult
                                                                                        evident elsewhere (kidney, gastrointestinal
            Paragonimus kellicotti (dogs, cats)  Chronic cough ± pneumothorax;          tract)
                                     rust-colored pharyngeal phlegm
                                                                 Lateral and foraminal disc extrusion   Acute onset; chondrodystrophic breed;
            Pneumonyssoides caninum (dogs)  Nasal mite; sensitive to parenteral (and   (intervertebral disc disease)  paravertebral pain present from the onset
                                     presumably oral) ivermectin
                                                                 Neuritis               Acute onset; rare
            Troglostrongylus brevior (cats)  Bronchi and bronchiolar infection;   Degenerative lumbosacral stenosis  Hindlimb lameness often worsens with
                                     larvae in feces difficult to distinguish           exercise; sciatic deficit; tail dysfunction
                                     from other metastrongyloids
                                                                                        and incontinence common
                                                                Reproduced from the third edition in unabridged form.
                                                                THIRD EDITION AUTHOR: Greg Kilburn, DVM, DACVIM












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