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GrossPathologyofAquaticSpecies C.L.DavisandSamuelThompsonFoundation’sGrossPathologyCourse2016 July18‐21,KansasStateUniversity,Manhattan,Kansas LTCEricD.Lombardini,VMD,MSc,DiplomateACVP,DiplomateACVPM E‐mail:[email protected] # Species Tissue Morphological Diagnosis/Etiological Diagnosis Etiology Diseasename 13 Fish Scaledskin Piscineiridovirus 14 15 Plaice Fish Scaledskin Scaled skin Piscineiridovirus Piscine iridovirus Lymphocystis Lymphocystis 16 SpottedGrouper Scaledskin Grouperiridovirus Sleepygrouper disease 17 PacificHerring Scaledskin ViralDiseases Fibroblasthyperplasia,multifocalto coalescing,severe Iridoviralfibroblasthyperplasia Fibroblast hyperplasia, multifocal to coalescing, severe Dermatitis,necroulcerativeand hemorrhagic,focallyextensive, severe Erythrocyticnecrosisvirus 19 Carp Scaledskin Cyprinidherpesvirus1 Viralerythrocytic necrosis Carppox 20 22 Carp Koi Scaledskin Gill Cyprinidherpesvirus1 Cyprinidherpesvirus3 Carppox KoiHerpesvirus 23 Koi Fins Cyprinidherpesvirus3 KoiHerpesvirus 24 Channelcatfish Skin 25 26 Channelcatfish fingerlings Salmon 27 Lymphocystis Ictaluridherpesvirus1 Channelcatfishviral disease(CCVD) Abdomen Dermatitis,proliferative,multifocal tocoalescing,marked Herpesviraldermatitis Branchitis,necrohemorrhagic, multifocaltocoalescing,severe Dermalerythema,multifocal, moderate Dermatitis,necrohemorrhagic, multifocaltocoalescing,severewith dermalinfarcts Ascites Ictaluridherpesvirus1 Scaledskin Cutaneouspapilloma Salmonidherpesvirustype2 Rainbowtrout Gill Branchialpapilloma Salmonidherpesvirustype2 28 Gizzardshad Scaledskin Viralhemorrhagicsepticemia virus(Rhabdovirus) 29 Gizzardshad Scaledskin 30 Trout 31 Carp Skeletal muscle Liver,spleen 32 Carp Wholebody Dermatitis,hemorrhagic,multifocal tocoalescing,severewithdermal infarcts Dermatitis,hemorrhagic,multifocal markedwithdermalinfarcts Rhabdomyositis,hemorrhagic, multifocal,moderate Hepatitis,splenitis, necrohemorrhagic,diffuse,severe Ascites Channelcatfishviral disease(CCVD) Oncorhynchus masouvirusdisease Oncorhynchus masouvirusdisease VHS 33 Atlanticsalmon Eyeandgill Hyphemaandbranchialpallor 34 Atlanticsalmon 35 Winterflounder Scaledskin Dermatitis,necroulcerative, multifocal,severe Infectioussalmonanemia virus(ISAV) Infectioussalmonanemia virus(ISAV) 36 Tigershrimp Carapace 37 Vannamei shrimp Siamesefighting fish Fish Fish Muscle Dermatitis,necrotizing,multifocalto coalescing,severe Virarhabdomyositis Whitespotsyndromevirus (WSSV) Wholebody BacterialDiseases Ascites Nonspecificsepsis Whitemuscle disease Eye Scaledskin Exopthalmia,unilateral,severe Cutaneoushemorrhages Nonspecificsepsis Nonspecificsepsis 38 39 40 41 1 Viralhemorrhagicsepticemia virus(Rhabdovirus) Viralhemorrhagicsepticemia virus(Rhabdovirus) Viralhemorrhagicsepticemia virus(Rhabdovirus) Rhabdoviruscarpio VHS VHS VHS Springviremiaof Carp Salmoninfectious anemia Salmoninfectious anemia Ulcerative Dermatitisin WinterFlounder 42 43 Koi Catfish Scaledskin Body 44 Snakehead Scaledskin 45 Tilapia Eyes 46 Eel,Carp Scaledskin 47 Carp Scaledskin 48 SeaUrchin 49 Salmon Testand Spines Skinand muscle 50 BlackDemekin Scaledskin 51 Troutfingerlings Oralcavity 52 Trout Oralcavity 53 Catfish Calvarium 54 Catfish Calvarium 55 Tilapia/Catfish Eye/Muscle 56 Turbot Eye 57 Salmon Kidney 58 Salmon 59 Salmon Skinand muscle Kidney 60 Salmon Kidney 61 Tilapia Eye 62 Seahorse Skin 63 Seahorse Skin 64 Seahorse Skin 65 Lobster Carapace 66 Ediblecrab Carapace 67 Wholebody 68 Yellowandblue tangs Goldfish Viscera 69 Zebrafish Tail 70 Koi Gills Cutaneousulceration Dermatitis,rhabdomyositisand osteomyelitis,necroulcerative, multifocaltocoalescing,severe Dermatitisandrhabdomyositis, necroulcerative,multifocalto coalescing,severe Ophthalmitis,suppurative,bilateral marked Dermatitis,necroulcerative, multifocaltocoalescing,severe Dermatitisandrhabdomyositis, necroulcerative,focallyextensive, severe Dermatitis,necroulcerative, multifocaltocoalescing,severe Dermatitisandrhabdomyositis, necrotizingandcavitating,multifocal, severe Dermatitis,necroulcerative,focal, marked Stomatitis,necrohemorrhagic, diffuse,severe Stomatitis,necrohemorrhagic, diffuse,severe Osteomyelitisanddermatitis, necroulcerative,focallyextensive, severe Osteomyelitisanddermatitis, necroulcerative,focallyextensive, severe Opthalmitis,suppurative,diffuse, marked/Rhabdomyositis necrotizing,diffuse,severe Panopthalmitis,necrohemorrhagic, focallyextensive,severewith exopthalmia Nephritis,necrotizing, granulomatous,multifocalto coalescing,severe Rhabdomyositis,necrotizingand cavitating,focallyextensiesevere Dermatitis,necroulcerative, multifocaltocoalescing,severe Dermatitis,necroulcerative, multifocaltocoalescing,severe Ophthalmitis,necrohemorrhagic, diffuse,marked Dermatitis,necroulcerative, multifocaltocoalescing,marked Dermatitis,necroulcerative, multifocaltocoalescing,marked Dermatitis,necroulcerative, multifocaltocoalescing,marked Dermatitis,necroulcerative, multifocaltocoalescing,severe Dermatitis,necroulcerative, multifocaltocoalescing,severe Emaciation Nonspecificsepsis Aeromonashydrophila MotileAeromonas Septicemia Aeromonashydrophila Aeromonashydrophila EpizooticUlcerative Syndrome MotileAeromonas Septicemia “red‐sore”disease Aeromonashydrophila Koiulcerdisease Listonellaanguillarumand Aeromonassalmonicida Aeromonassalmonicida Baldseaurchin disease Furunculosis AtypicalAeromonas salmonicida Yersiniaruckeri Goldfishulcer disease Redmouth Yersiniaruckeri Redmouth Edwardsiellaictaluri Holeinthehead disease Edwardsiellaictaluri Holeinthehead disease Edwardsiellatarda Emphysematous PutrefactiveDisease Edwardsiellatarda Emphysematous PutrefactiveDisease Renibacteriumsalmonarium Bacterialkidney disease Renibacteriumsalmonarium Furunculosis Renibacteriumsalmonarium Spawningrash Renibacteriumsalmonarium Spawningrash Streptococcusspp. Vibriosp. Flesherosion disease Abdominalcavity:Peritonitis, hepatitis,splenitis,granulomatous, multifocal,severe Cellulitis,necrotizing,focally extensive,severe Branchitis,necrotizing,multifocal, severe 2 Aeromonashydrophila Vibriosp. Vibriosp. Pseudomonas,Vibrio,and Beneckea Chitinoclasticbacteria Shelldisease Mycobacteriumsp. Mycobacteriumsp. Flavobacteriumcolumnare Saddleback Flavobacteriumcolumnare Blackspotdisease 71 Salmon Gills 72 73 74 75 Zebrafish Seabream Wholebody TEM Muscle 76 Salmon Muscle 77 78 79 Zebrafish Zebrafish Winterflounder Wholebody H&E Intestine 80 Plaice Intestine 81 Stickleback Scaledskin 82 83 Shrimp Salmon Wholebody Skeletal muscle 84 Silversalmon Skeletal muscle 85 86 Fish Catfish Gills Gills 87 88 Eelpout Trout Muscle Calvarium 89 90 Trout Angelfish Wholebody Scaledskin 91 Blue/GreenReef Chromis Scaledskin 92 Fishandcatfish Skin 93 Bluegill Scaledskin 94 Neontetra Scaledskin 95 Frogfish Scaledskin 96 Bluetang Scaledskin 97 Scorpionfish Eye 98 Marineshrimp 99 100 Bluepearl shrimp Betta Rostrumand carapace Abdomenand pleopods Wholebody 101 Discus Wholebody 102 Discus Wholebody 103 Topmouth gungeon Fishandeggs Angelfish Wholebody 104 105 106 Scaledskin Scaledskin Branchitis,necrotizing,focally extensive,marked Protozoaldiseases Protozoalkyphosis Microsporidiae Rhabdomyositis,necrotizing, multifocaltocoalescing,severe Rhabdomyositis,necrotizing, multifocaltocoalescing,severe Protozoalkyphosis Spinalcord:Protozoalcyst Enteritis,granulomatous,diffuse, severewithprotozoalxenomas Enteritis,granulomatous,diffuse, severewithprotozoalxenomas Dermatitis,granulomatous,focally extensive,severewithintralesional protozoalcyst Microsporidialnecrosis Rhabdomyositis,granulomatous, multifocal,mildwithintralesional myxosporidiancysts Rhabdomyositis,granulomatous, multifocal,mildwithintralesional myxosporidiancysts Myxospridialbranchitis Branchitis,necroproliferative, diffuse,severe Rhabdomyocyticprotozoalcysts Chondrodysplasia,diffuse,severe withchondrousnecrosisandloss Kyphosis Dermatitis,necroulcerativeand hemorrhagic,focallyextensive, severe Dermatitis,necroulcerativeand hemorrhagic,focallyextensive, severe Epithelialhyperplasia,multifocal, markedwithintralesionalprotozoae Epithelialhyperplasia,multifocal, markedwithintralesionalprotozoae Epithelialhyperplasia,multifocal, markedwithintralesionalprotozoae Epithelialhyperplasia,multifocal, minimal,withintralesionalprotozoae Epithelialhyperplasia,multifocal, minimal,withintralesionalprotozoae Cornealhyperplasia,multifocal, minimal,withintralesionalprotozoae Dermatitis,hyperplastic,multifocal tocoalescing,moderate Dermatitis,hyperplastic,multifocal tocoalescing,moderate Dermatitis,hyperplasticand necrotizing,multifocaltocoalescing, marked Epithelialhyperplasiaanderosion, diffuse,severe Epithelialhyperplasiaanderosion, diffuse,severe Necrosis,granulomatous,visceral, severe FungalDiseases Fungaldermatitis Dermatitis,necroulcerative,diffuse, severewithhyphalmats 3 Falvobacterium branchiophilium Microsporidium Microsporidiumsp. Peduncledisease Microsporidiumsp. Pseudolomaneurophila Pseudolomaneurophila Glugeastephani Skinnydisease Glugeasp. Glugeasp. Microsporidiae Myxosporasp. Cottondisease Henneguyasalminicola Henneguyasp. Aurantiactinomyxonspor Hennegyaictaluri Myxobolusaeglefini Myxoboluscerebralis Hamburgergill disease Whirlingdisease Myxoboluscerebralis Tetrahymenacorillisi Whirlingdisease Guppydisease Uronemamarinum Scuticociliatosis Ichthyophthiriusmultifilis Ich Ichthyophthiriusmultifilis Ich Ichthyophthiriusmultifilis Ich Cryptocaryonirritans MarineIch Cryptocaryonirritans MarineIch Cryptocaryonirritans MarineIch Vorticellasp. Ellobiopsissp. Oodiniumsp. Velvetdisease,or Golddustdisease Ichthyobodo necator Ichthyobodonecator Costiasis Sphaerothecumdestruens Rosetteagent Saprolegniasp. Saprolegniasp. Costiasis 107 Catfish Skin 108 Salmon Skin 109 Catfish Skin 110 Hammerhead shark Skinand lateralline 111 Polkadot stingray Skin,muscle, bone 112 113 Fish 114 Westernminnow Skeletal muscle Dermis 115 116 117 Herring Alaskanpollock Fish 118 119 120 121 Commonjollytail Dourado Whitesucker 122 123 Fish 124 Fish H&EScaled skin Scaled skin/gill Eye,lens 125 Rainbowtrout Eye,lens 126 H&EEye 127 128 129 130 Rostrum Coelom Scaledskin 131 Commonshrimp Swordtail Strawberry BassletFish Fish Gill 132 Dourado Scaledskin 133 Fish Gill 134 Fish Gill 135 Redsnapper Tongue 136 Tongue 137 Spotted‐rose snapper Crab 138 Coelom Coelom Skeletal muscle Coelom Intestine H&Eheart Scaledskin Gonopod Dermatitis,necroulcerative,focally extensive,severewithfungalmat Dermatitis,necroulcerative,focally extensive,severewithfungalmat Dermatitis,necroulcerative,focally extensive,severewithfungalmat Dermatitis,necroulcerative, multifocaltocoalescing,severewith poreerosion Dermatitis,rhabdomyositisand osteomyelitis,multifocalto coalescing,marked ParasiticDiseases Muscularnematodiasis Saprolegniasp. Saprolegniasp. Fusariumsolani Saprolegniosis complex Erythematousparasiticdermatitis Eustrongyloidessp. Coelomicanisakiasis Coelomicanisakiasis Muscularcestodiasis Anisakissp. Anisakissp. Bothriocephalus acheilognathi Ligulaintestinalis Monticelliacoryphicephalla Uvuliferambloplitis Blackspotdisease Coelomiccestodiasis Intestinalcestodiasis Digenetictrematodes Cutaneoustrematode metacercariasis Cutaneoustrematode metacercariasis Cutaneous/branchialtrematode metacercariasis Cataractouschange,subcapsular, multifocal,moderate,with intralenticulartrematode metacercariae Cataractouschange,subcapsular, multifocal,moderate,with intralenticulartrematode metacercariae Cataractouschange,subcapsular, multifocal,moderate,with intralenticulartrematode metacercariae Scutariellarialdermatitis Coelomicpentostomiasis Parasiticcopepods DermalArgulus Branchitis,proliferative, granulomatous,multifocal,moderate withintralesionalarthropods Dermatitis,necrotizingand proliferative,granulomatous, multifocal,moderatewith intralesionalarthropods Branchitis,proliferative, granulomatous,multifocal,marked withintralesionalarthropods Branchitis,proliferative, granulomatous,multifocal,marked withintralesionalarthropods Glossallossdiffuse,severewith intralesionalarthropod Glossallossdiffuse,severewith intralesionalarthropod Gonadalnecrosisandparasitic replacement,diffuse,severe NeoplasticDiseases 4 Saprolegniasp. Saprolegniosis complex Diplostomumspathaceum Diplostomumsp. Diplostomumspathaceum Scutariellajaponica Argulussp. Lernaeocerabranchialis Anchorworm Lerneasp. Anchorworm Ergasilussp. Gillmaggots Ergasilussp. Gillmaggots Ceratothoasp. Ceratothoasp. Loxothylacuspanopaei Castratingparasitic barnacle 139 140 Fish Fish 141 Bi‐colored Damselfish Angelfish Walleye Walleye Northernpike Flowerhorn cichlid Arowana Polkadot stingray Zebrafish Brownbullhead catfish Koi CommonDab 142 143 144 145 146 147 148 149 150 151 152 153 156 157 Brownbullhead catfish Carp GreatWhite Shark Flatfish Oscar 158 Bluetang 159 AlbinoOscar 160 ConvictTang 161 162 163 164 165 166 167 168 169 170 Fish Salmon Fish Zebrafish Fish/Seahorse Fish Bass Clownfish Shovel‐nose catfish Manhaden Trout 154 155 171 172 173 174 175 LionheadOranda goldfish Fin Skeletal muscle Scaledskin Melanoma Fibrosarcoma Schwannoma Skin Scaledskin Scaledskin Scaledskin Scaledskin Dermatofibroma Dermalsarcoma DermalSarcoma Lymphoma Cutaneouslymphoma Type‐ARetrovirus Type‐Cretrovirus‐associated Type‐Cretrovirus‐associated Type‐Cretrovirus‐associated Suspectedviraletiology Gill Viscera Thymiclymphoma Granulocyticlymphoma Testis Liver Seminoma Cholangiocarcinoma Scaledskin Scaledskin Papilloma Epidermalpapilloma Oralcavity Papilloma Scaledskin Oralcavity Fibromas Squamouscellcarcinoma Toxins;+/‐Virus Herpesvirus‐associated Toxins;+/‐Virus Toxins;+/‐Virus Adipose Skinand lateralline system Skinand lateralline system Skinand lateralline system Skinand lateralline system Gill H&EGill Kidney Gills Eyes Eyes/skin Eyes Face Operculum Face Steatitis,necrotizing,diffuse,severe Dermatitis,necroerosiveand ulcerative,multifocaltocoalescing, severe Dermatitis,necroerosiveand ulcerative,multifocaltocoalescing, severe Dermatitis,necroerosiveand ulcerative,multifocaltocoalescing, severe Dermatitis,necroerosiveand ulcerative,multifocaltocoalescing, severe Goiter Goiter Renalnephrocalcinosis Goiter Brachycephaly Operculardysplasia Brachycephaly Spine Wholebody Scoliosis Kidney Nutritional O2/N2supersaturation O2/N2supersaturation O2/N2supersaturation HeadandLateral LineErosion Disease HeadandLateral LineErosion Disease HeadandLateral LineErosion Disease HeadandLateral LineErosion Disease Gasbubbledisease Gasbubbledisease Gasbubbledisease Polycystickidney Nutritional,infectious Temperaturefluctuations duringgestation Photocredits References 5
