{
  "abstract": "This study reports a case of conjoined twins in guinea pigs (Cavia porcellus) from the Peru breed, in the Cajamarca region, Peru. A one-year-old female gave birth to normal offspring and a pair of conjoined twins born dead; The latter were carried out with morphological, radiographic and echographic evaluations, and the blood count and serum biochemical profile of the dam were analyzed. The twins presented cephalothoraco-omphalopagus fusion, characterized by a single skull with cyclopia, arhinia and astomy, ventral thoracoabdominal fusion, the pelvis separated and four extremities (four pairs) completely dislocated. Radiographic and ultrasound evaluations identified two hearts and two pairs of kidneys, with preserved gross sonographic morphology and no evident major structural abnormalities. The maternal blood count showed mild hypochromic macrocytosis and mild thrombocytopenia, with the rest of the hematological and biochemical parameters within normal ranges. It was concluded that the hallmarks are compatible with an early developmental disturbance affecting midline structures, although the precise timing and etiology could not be definitively established, which selectively affected the structures of the medial line. This report expands the scarcity of evidence available on serious congenital malformations in guinea pigs.",
  "abstract_shown": true,
  "affiliations": [
    "Veterinary Pathology Laboratory, Faculty of Veterinary Sciences, National University of Cajamarca, Cajamarca, Av. Atahualpa, Km. 3, Cajamarca 06003, Peru.",
    "Agrostology Laboratory, Institute for Livestock and Biotechnology Research, Faculty of Animal Science, Biotechnology, Agribusiness and Data Science, Toribio Rodríguez de Mendoza National University of Amazonas, Chachapoyas 01001, Peru.",
    "Chemistry Laboratory, Faculty of Agricultural Sciences, National University of Cañete, San Vicente de Cañete 15701, Peru.",
    "National Institute of Agricultural Innovation, Baños del Inca Agricultural Research Station, Cajamarca, Jirón Wiracocha, No. S/N, Los Baños del Inca 06004, Peru.",
    "Institute for Research in Livestock and Biotechnology, Faculty of Animal Science, Biotechnology, Agribusiness and Data Science, Toribio Rodríguez de Mendoza National University of Amazonas, Chachapoyas 01001, Peru."
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Medali Cueva-Rodríguez",
      "orcid": "0000-0002-1301-5477"
    },
    {
      "affs": [
        0
      ],
      "name": "Jhenny Sánchez-Estela",
      "orcid": "0009-0006-4132-9373"
    },
    {
      "affs": [
        0
      ],
      "name": "Jorge Portal-Torres"
    },
    {
      "affs": [
        0
      ],
      "name": "Giussepe Reyna-Cotrina"
    },
    {
      "affs": [
        1
      ],
      "name": "Flor L Mejía",
      "orcid": "0000-0002-1851-1285"
    },
    {
      "affs": [
        2
      ],
      "name": "Bessy Castillo-Santamaria"
    },
    {
      "affs": [
        3
      ],
      "name": "Judith Estela-Manrique",
      "orcid": "0009-0001-6484-550X"
    },
    {
      "affs": [
        4
      ],
      "name": "William Bardales Escalante",
      "orcid": "0000-0001-9721-9057"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/31t7xbqm71jbq.bib",
  "cited_by": 0,
  "doi": "10.3390/ani16203291",
  "fulltext_url": "https://europepmc.org/articles/PMC13700570",
  "id": "31t7xbqm71jbq",
  "issns": [
    "2076-2615"
  ],
  "landing_url": "https://europepmc.org/article/MED/42939221",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2746|Congenital Anomalies and Fetal Surgery"
    ]
  ],
  "openalex": "W7222913910",
  "pdf_url": "https://europepmc.org/articles/PMC13700570?pdf=render",
  "pmcid": "PMC13700570",
  "pmid": "42939221",
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/31t7xbqm71jbq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:12Z",
      "native_id": "MED:42939221",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42939221"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Congenital Anomalies and Fetal Surgery",
      "subfield": "surgery"
    }
  ],
  "title": "Conjoined Twins in Guinea Pigs (Cavia porcellus): Case Report.",
  "title_text": "Conjoined Twins in Guinea Pigs (Cavia porcellus): Case Report.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:22:12Z",
  "url": "https://research.draconitic.com/paper/31t7xbqm71jbq",
  "venue": "Animals : an open access journal from MDPI",
  "versions": []
}