Lechiguana (Focal Proliferative Fibrogranulomatous Panniculitis) in Cattle

  title={Lechiguana (Focal Proliferative Fibrogranulomatous Panniculitis) in Cattle},
  author={Franklin Riet-Correa and S{\'i}lvia Regina Leal Ladeira and G. B. Andrade and G. R. Carterb},
  journal={Veterinary Research Communications},
Lechiguana is a disease of cattle characterized by large, hard, subcutaneous swellings that grow rapidly and result in death after 3–11 months in untreated animals. Cattle treated with antibiotics recover. The disease has been reported from five states in south and southeastern Brazil. Histologically, the lesion consists of focal proliferation of fibrous tissue infiltrated by plasma cells, eosinophils, lymphocytes and sometimes neutrophils. The primary lesion is an eosinophilic lymphangitis… Expand
Pathological aspects of bovine focal fibrogranulomatous proliferative panniculitis (Lechiguana)
Angiogenesis was the most characteristic finding in both proliferative and regressive stages as seen by the immunohistochemical expression of cytoskeleton proteins and von Willebrand (Factor VIII-Related Antigen). Expand
Isolamento de Arcanobacterium pyogenes de granuloma actinomicóide em bovino
It is concluded that A. pyogenes could be involved in actinomycotic-like lesion with clinical and pathological aspects similar to lechiguana, tuberculosis and actinobacilosis. Expand
Bronchopneumonia associated with Mannheimia granulomatis infection in a Belgian hare (Lepus europaeus)
  • A. Britton, T. Redford, +4 authors Tomy Muringayil Joseph
  • Biology, Medicine
  • Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
  • 2017
The histopathology of purulent bronchopneumonia associated with M. granulomatis in a Belgian hare resident in British Columbia, Canada is described and the lesions compared with those caused by M. haemolytica in livestock are compared. Expand
Efeito da Mannheimia granulomatis sobre cultivo de fibroblastos
Primary cultures of Mannheimia granulomatis were established in chicken embryos to assess their capacity to stimulate fibroblast proliferation. The capacity of the bacterium-activated macrophages toExpand
Eight atypical Mannheimia isolates were isolated from lesions in roe deer and extensive phenotypic characterization suggested that the isolates should be classified as M. granulomatis, although the presence of distinct traits justified their classification into a separate biogroup within this species. Expand
Molecular study on Pasteurella multocida and Mannheimia granulomatis from Kenyan Camels (Camelus dromedarius)
This study is the first to apply state of the art molecular methods to shed light on the nasopharyngeal carrier state of Pasteurellaceae in camels, demonstrating a hitherto unrecognised active carrier state for M. granulomatis or a closely related new Mannheimia species from camelids. Expand
The forgotten role of lymphangitis in Crohn’s disease
Attention should be directed at defining the initial damage to lymphatic endothelium and agents that might be responsible of the basic changes in Crohn’s disease. Expand
Microanatomy of the intestinal lymphatic system
Vital to progress in understanding how the intestinal lymphatic system functions is the integration of recent advances identifying molecular pathways for lymphatic growth and remodeling with advanced imaging modalities to observe lymphatic function and dysfunction in vivo. Expand
Integumentary System
1. Explain why the skin is called the cutaneous membrane. 2. Name the layers of the skin, describe the structure (tissues) of each, and name a general function of each. 3. Discuss the four cell typesExpand
Lymphatic Vessel Network Structure and Physiology.
A comprehensive review of important findings over the past century along with recent advances in the understanding of the anatomy and physiology of lymphatic vessels, including tissue/organ specificity, development, mechanisms of lymph formation and transport, lymphangiogenesis, and the roles of lymphatics in disease are provided. Expand


Bovine Focal Proliferative Fibrogranulomatous Panniculitis (Lechiguana) Associated with Pasteurella granulomatis
In southern Brazil, cattle affected by a disease known locally as Lechiguana and characterized by large subcutaneous swellings, it is postulate that this insect may transmit the causative agent. Expand
Toxin Production by Pasteurella granulomatis
It is concluded that some Pg isolates have variable hemolytic and/ or leukotoxic properties and that this variability (presence and/or degree) of these 2 properties may affect the relative pathogenicity of Pg in susceptible cattle. Expand
Role of Pasteurella granulomatis and Dermatobia hominis in the Etiology of Lechiguana in Cattle a
The apparent long incubation period, the negative results obtained in the other experiments, and also the infrequent occurrence of the natural disease suggest that lechiguana is a disease for which Koch's postulates are not easily fulfilled. Expand
The Use of Polymerase Chain Reaction to Identify Pasteurella granulomatis from Cattle
The present study was initiated to use polymerase chain reaction (PCR) amplification in order to recognize Pg DNA from cultures and possibly from bacteria within bovine or insect tissue, and to show the relatedness of Pg strains to each other and to other Pasteurella and Actinobacillus spp. Expand
Pasteurella haemolytica-like bacterium from a progressive granuloma of cattle in Brazil
Three strains of a Pasteurella haemolytica-like bacterium were isolated from lesions of a progressive granuloma of cattle in southern Brazil, and a name is proposed for this apparently new taxon. Expand
Dating of fibrotic lesions by the Picrosirius-polarization method. An application using the lesions of Lechiguana (bovine focal proliferative fibrogranulomatous panniculitis).
It is concluded that simple determinations of collagen aggregation provide numerical data that may be useful to build mathematical models relating time of evolution of the disease to fibrosis. Expand
Paniculite fibrogranulomatosa focal em bovino de Minas Gerais
Um caso de "lechiguana" bovina, e relatado em bovino proveniente de Fama, MG, que apresentou aumento de volume de aproximadamente 30x8cm, de consistencia firme e com superficie ulcerada, localizadoExpand
Taxonomic relationships of the [Pasteurella] haemolytica complex as evaluated by DNA-DNA hybridizations and 16S rRNA sequencing with proposal of Mannheimia haemolytica gen. nov., comb. nov., Mannheimia granulomatis comb. nov., Mannheimia glucosida sp. nov., Mannheimia ruminalis sp. nov. and Mannheim
Based on the polyphasic investigation performed a new genus Mannheimia is proposed for the trehalose-negative [P.] haemolytica complex, and two previously named species are transferred to this new genus and three new species are described. Expand
Antibiotic susceptibility testing by a standardized single disk method.
Recommendations of the National Committee for Clinical Laboratory Standards continue to be based on this publication; the “Kirby-Bauer” method is, among the many disk methods used in other countries, still the one that has been researched most thoroughly and updated continuously. Expand
Lechiguana: experimental histologic lesions and study of new cases, (MS thesis, University of Pelotas, Brazil
  • 1998