OOIR: Observatory of International Research

Papers

(The TQCC of Veterinary Pathology is 4. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-06-01 to 2026-06-01.)

Article	Citations
Immunohistochemical evidence of NF-kB activation in canine lymphomas, histiocytic sarcomas, hemangiosarcomas, and mast cell tumors	36
Histopathologic evaluation system of African swine fever in wild boar infected with high (Arm07) and low virulence (Lv17/WB/Riel) isolates	33
Head tilt in 6 Ankole-Watusi cattle ( Bos taurus ankole ) with chronic exudative cornual sinusitis	32
Dysfunctional CRPPA is responsible for recessively inherited Hereford hydrocephalus with muscular dystrophy and retinal dysplasia	28
Diagnostic challenge in veterinary pathology: Detection of BRAF ^V595E mutation in a dog with follicular cystitis and flat	27
Diagnostic challenge in veterinary pathology: Tri-cavitary effusion in a cat with systemic pyogranulomatous inflammation	27
Image Challenge in Veterinary Pathology	27
SOX-10 and TRP-1 expression in feline ocular and nonocular melanomas	26
Pathology of ruminal acidosis in cattle	20
Trends in feline perianesthetic death postmortem submissions from a referral teaching hospital and general practices in Saskatchewan (Canada) and a proposed postmortem checklist	19
Histomorphological and ultrastructural characterization of pancreatic islet intranuclear and intracytoplasmic inclusions in giant southern pouched rats ( Cricetomys ansorgei	18
Brain and pituitary-adrenal lesions of Trypanosoma brucei brucei and Trypanosoma congolense infections in	17
Bronchopneumonia with interstitial pneumonia in feedlot cattle: Epidemiologic characteristics of affected animals	16
Commotio Cordis and One Medicine	16
Detection and diagnosis of Panulirus argus virus 1 in captive spiny lobsters using qPCR in conjunction with histopathology and transmission electron microscopy	16
Hepatocellular carcinomas in captive prosimians	16
Upper respiratory tract disease in European hedgehogs ( Erinaceus europaeus ): Histopathological, microbiological, and clinical aspects	15
Cytologic scoring of equine exercise-induced pulmonary hemorrhage: Performance of human experts and a deep learning-based algorithm	15
Histological and immunohistochemical features of carcinomas with pulmonary involvement in cattle	15
Spontaneous and experimentally induced lesions in NOD-scid gamma and other NOD-derived mouse strains	15
Cutaneous mastocytosis in 8 young dogs and review of literature	15
Prognostic significance of pSTAT3 expression in feline mammary carcinomas	14
A novel spontaneous cytotoxic T-cell lymphoma in chickens	14
Image challenge in Veterinary Pathology	13
Image challenge in Veterinary Pathology , answers: Neoplasia	12

Pathological insights of human CD34+ hematopoietic stem cell-engrafted NSG mice: Implications for the safety assessment of cancer immunotherapy drugs	12
Intramural coronary artery and myocardial pathology in captive tigers ( Panthera tigris ) and African lions ( Panthera leo	12
Histologic lesions of cestodiasis in octopuses	12
Intraepithelial cytotoxic lymphocytes are associated with a poor prognosis in feline intestinal T-cell lymphoma	12
Veterinary dermatopathology: A growing discipline	12
Retrospective analysis of clustered neuroinflammatory and neurodegenerative diseases in captive lions in the early 1970s	12
Histomorphologic and immunohistochemical characteristics of intraocular metastatic carcinomas of presumed pulmonary origin in cats: A retrospective case series from 2019 to 2025	11
Systemic avian poxvirus infections associated with the B1 subclade of canarypox virus	10
Histopathological survey of free-ranging neotropical bats with dermatitis	10
Feline pulmonary carcinoma: Gross, histological, metastatic, and immunohistochemical aspects	10
Genomic integration and expression of Felis catus papillomavirus type 2 oncogenes in feline Merkel cell carcinoma	9
Lymphoma in European hedgehogs ( Erinaceus europaeus ): A case series	9
Reviewers Summary	9
Cerebellar hypomyelination, white matter vacuolization, and prolonged presence of atypical porcine pestivirus in pigs with congenital tremor type A-II	9
A retrospective study of pathologic findings in cephalopods (extant subclasses: Coleoidea and Nautiloidea) under laboratory and aquarium management	9
Sarcomas of synovial origin in dogs: An updated review	9
Image challenge in Veterinary Pathology	8
Pathological findings and differential diagnoses of lymph node diseases in slaughtered cattle in Brazil: A study of 2000 samples	8
From one health to paleopathology to a taste of toxicologic pathology: Award-winning presentations at the in-person 2022 ACVP and ASVCP concurrent annual meeting	8
Application of confocal laser microscopy and its feasibility in routine diagnosis of surgical biopsy specimens	8
Diversity of mutations in the dystrophin gene and details of muscular lesions in porcine dystrophinopathies	8
Image challenge in veterinary pathology, answers: Paraneoplastic syndromes	8
Immunohistochemical characterization of the immune cell response during chlamydial infection in the male and female koala ( Phascolarctos cinereus ) repr	8
Massive branchial henneguyosis of catfish: A distinct, myxozoan-induced gill disease caused by severe interlamellar Henneguya exilis infection in catfish	8
Feline sporotrichosis: Characterization of cutaneous and extracutaneous lesions using different diagnostic methods	8
Mortality associated with SARS-CoV-2 in nondomestic felids	8
Titya abstersa -associated gastrointestinal disease in calves: A report of a natural outbreak	7
Odontogenic-like neoplasms of the rabbit cheek: pathological features and comparison to cutaneous trichoblastoma and jaw-associated ameloblastoma	7
Changes in mast cell density, fibrosis, and immunohistochemical expression of tryptase, chymase, SCF, and PAR2 during regression of canine transmissible venereal tumors	7
Incidence and characterization of polyglucosan bodies in the cerebella of montserrat orioles ( Icterus oberi )	7
Subacute and chronic toxic hepatopathy in cattle grazing pasture with Crotalaria spectabilis	7
Gross, histopathologic, microbiologic, and radiologic characterization of lesions associated with clinical lameness in a cohort of group-housed sows euthanized for lameness	7
PD-L1 expression and tumor-infiltrating T lymphocytes as prognostic factors in canine mammary tumors	7
Amdoparvovirus-associated disease in striped skunks ( Mephitis mephitis )	7
Helicosporidium sp. infection in a California kingsnake ( Lampropeltis californiae ): Spillover of a pathogen of invertebrates	7
A method for scoring 4-nitroquinoline 1-oxide-induced murine esophageal squamous neoplasia	7
Fetoplacental pathology of equine abortion, premature birth, and neonatal loss due to Chlamydia psittaci	7
Special focus on veterinary neuropathology	7
Adherent-invasive Escherichia coli associated with granulomatous colitis and extraintestinal dissemination in a Sphynx cat	7
Letters or not, here we come! A communal perspective on credentials needed for a productive career in veterinary pathology	7
Oral fibroepithelial polyps (“chewing granulomas”) in 21 dogs: Histomorphology, immunohistochemical characterization, and clinical outcome	7
Review of tracheal neoplasia in dogs and cats (1961–2024)	6
Mesangial cell hypercellularity and iron accumulation in the kidney associated with administration of a sickle hemoglobin modulator in CD-1 mice	6
Ocular and periocular Usutu virus-associated lesions in naturally infected Eurasian blackbirds ( Turdus merula )	6
Mitotic activity: A systematic literature review of the assessment methodology and prognostic value in canine tumors	6
Meningioma with rhabdoid features: Pathologic findings in dogs	6
Pests, plagues, pleurites, and pébrine: The history of invertebrate pathology from antiquity to 1900	6
Stereotypic immune response in Mycobacterium avium ssp. paratuberculosis infection among different Swiss c	6
Acute myeloid leukemia in a genetically related captive population of axolotls ( Ambystoma mexicanum )	6
A retrospective review of the histologic features and prognosis of hypercellular canine peripheral odontogenic fibromas	6

Diagnostic challenge in veterinary pathology: Generalized alopecia in a Holstein dairy cow	6
Report of amoebic disease in a colony of Western honey bees ( Apis mellifera )	6
Incidence, gross features, and histologic characterization of feline fibrocystic hepatobiliary lesions and extrahepatic biliary malformations	6
Pathological aspects of cutaneous mast cell tumors with metastases in 49 dogs	6
Comprehensive phenotypic and clonality analysis of intraepithelial lymphocytes of intestinal T-cell lymphoma and chronic enteropathy in dogs	6
Renal oxalosis in African green monkeys ( Chlorocebus sabaeus ) in St. Kitts	5
Histologic, histochemical, and immunohistochemical changes in buffalo liver with cystic echinococcosis	5
Clinicopathological progression and molecular characterization of intestinal dilatation syndrome in commercial brown layers	5
Modifying phrases in veterinary pathology diagnostic reports: The veterinary professionals’ perception on the diagnostic confidence	5
Short beak and dwarfism syndrome among Pekin ducks: First detection, full genome sequencing, and immunohistochemical signals of novel goose parvovirus in tongue tissue	5
Macrophage polarization in lymph node granulomas from cattle and pigs naturally infected with Mycobacterium tuberculosis complex	5
Nodular hyperplasia of lymphoglandular complexes in dogs: A potential diagnostic pitfall for rectal masses	5
Polyglucosan bodies as age-related intracytoplasmic inclusions in atrial cardiomyocytes of guinea pigs resembling basophilic degeneration	5
Spatial transcriptomics defines the cell-specific RNA landscape of equine dorsal root ganglia	5
Lethal, disseminated infection with an oomycete ( Halioticida noduliformans ) in captive, deep-sea isopods ( Bathynomus giganteus<	5
Embolic necrosuppurative pneumonia in domestic cats induced by a novel Neisseria species	5
Subcutaneous choriocarcinomas in captive Amargosa voles ( Microtus californicus scirpensis )	5
Colocalization of hedgehog arterivirus 1 (HhAV-1) and histologic lesions in the European hedgehog ( Erinaceus europaeus ) with neurological disease	5
Differential expression of miRNAs in primary canine appendicular osteosarcoma tissue and pulmonary metastases	5
Histologic and immunohistochemical characterization and frequency of rare subtypes of canine invasive urothelial carcinoma	5
Feline Hodgkin-like lymphoma: A morphological, immunohistochemical, and molecular study	5
SARS-CoV-2 inactivation in laboratory animal tissues with 4% formaldehyde or 5% glutaraldehyde for transfer to biosafety level 1 laboratories	5
Granulocytic neoplasm suggestive of primary myeloid sarcoma in 3 dogs	5
Image Challenge in Veterinary Pathology : Questions	5
Survivin, β-catenin, and ki-67 immunohistochemical expression in canine perivascular wall tumors: Preliminary assessment of prognostic significance	5
Review of spontaneous lesions in the exocrine pancreas of domestic ferrets ( Mustela furo )	5
Morphological features of hepatic lipid changes in bearded dragons ( Pogona vitticeps ), and a proposed grading system	4
Special focus on SARS-CoV-2 and other zoonotic respiratory coronaviruses in animal models	4
Effects of fixation and demineralization on immunohistochemical assessment of canine bone marrow	4
Cutaneous silica-associated (cat litter) granulomas in the paws of 13 domestic cats	4
Tissue expression and urinary excretion of liver-type fatty acid binding protein in older dogs with or without early signs of chronic kidney disease	4
Distribution of the misfolded isoform of the prion protein in peripheral tissues and spinal cord of Rocky Mountain elk ( Cervus elaphus nelsoni ) with na	4
Central nervous system diseases of cetaceans: A conservation challenge and a comparative pathology opportunity	4
Meningoencephalomyelitis and brachial plexitis in a dog infected with louping ill virus	4
Image challenge in Veterinary Pathology	4
Spinal disease in a captive population of Panthera species: Review of 86 cases (2003–2021)	4
“Errata” does anyone read them? Revisiting mitotic counts in mast cell tumors	4
Digital quantification of porcine circovirus 2 (PCV-2)-infected cells in lymph nodes of pigs with natural PCV-2 systemic disease shows strong association with manual scoring and quantitative PCR	4
Hereditary pontine and extrapontine brain malformations in Brazilian Tabapuã cattle	4
Melan-A immunolabeling in canine extramedullary plasmacytomas	4
Image Challenge in Veterinary Pathology	4
Pneumocystis murina lesions in lungs of experimentally infected Cd40l ^–/– mice	4
Characterization of tumor-associated macrophages in canine soft tissue sarcomas reveals histotype-dependent immune microenvironments and correlations with mitotic count and histological grade	4
Hemosiderosis is associated with increased susceptibility to Yersinia pseudotuberculosis infection in Seba’s short-tailed bats ( C	4
Image challenge in Veterinary Pathology , answers: Dog diseases	4
Histologic characterization of the major duodenal papilla and association with concurrent biliary, pancreatic, and intestinal pathology in cats	4
Image Challenge in Veterinary Pathology , Answers: Swine Diseases	4
Histologic findings of Massospora cicadina infection in periodical cicadas ( Magicicada septendecim )	4
“Mapping” artificial intelligence in histopathology: Four reflections on scope, generalization drift, augmentation, and the consequences of errors	4
Lesions and viral antigen distribution in bald eagles, red-tailed hawks, and great horned owls naturally infected with H5N1 clade 2.3.4.4b highly pathogenic avian influenza virus	4
Image Challenge in Veterinary Pathology	4
Cutaneous malignant melanomas in pet rabbits ( Oryctolagus cuniculus ): Histological and immunohistochemical characteristics and prognostic factors	4
Identification of freeze-thaw artifact in fresh and decomposed black rockfish ( Sebastes melanops ) and steelhead trout ( Oncorhyn	4
Book Review: Pathology of Pet and Aviary Birds , Jason DS, David NP, Robert ES, eds DSJasonNPDavidESRobert, eds. Pathology of Pet and Aviary Birds, 3rd e	4
Investigating the association between koala retrovirus and primary bone neoplasia in koalas ( Phascolarctos cinereus) using real-time PCR and a novel imm	4
Review: The PI3K-AKT-mTOR signal transduction pathway in canine cancer	4