Evidence map›Paper›PMID 42806459›Full record

ArticleJournal of medical primatology2026

Bilateral Leydig Cell Tumor in a Capuchin Monkey (Sapajus apella): Case Report.

Ewerton Lourenço Barbosa Favacho, Sandla Freitas da Silva, Jamerson Luiz Brito da Silva, Daniella Kaísa de Oliveira Bezerra, Valíria Duarte Cerqueira, Gabriela Riet Correa Rivero, Pedro Soares Bezerra Júnior

Abstract readCase Reports
In one paragraph

Article in Journal of medical primatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Ewerton Lourenço Barbosa FavachoAnimal Pathology Laboratory (LAPATO), Federal University of Pará (UFPA), Graduate Program in Animal Health in the Amazon (PPGSAAM), Castanhal, Pará, Brazil.ORCID https://orcid.org/0000-0002-9098-4343
Sandla Freitas da SilvaAnimal Pathology Laboratory (LAPATO), Federal University of Pará (UFPA), Graduate Program in Animal Health in the Amazon (PPGSAAM), Castanhal, Pará, Brazil.ORCID https://orcid.org/0000-0002-2578-437X
Jamerson Luiz Brito da SilvaMinistry of Health, Secretariat of Health Surveillance and Environment, National Primate Center, Ananindeua, Pará, Brazil.ORCID https://orcid.org/0009-0003-7984-7860
Daniella Kaísa de Oliveira BezerraExperimental Primate School (EEP), Federal University of Pará (UFPA), Belém, Pará, Brazil.ORCID https://orcid.org/0000-0002-8350-9827
Valíria Duarte CerqueiraAnimal Pathology Laboratory (LAPATO), Federal University of Pará (UFPA), Graduate Program in Animal Health in the Amazon (PPGSAAM), Castanhal, Pará, Brazil.ORCID https://orcid.org/0000-0003-1622-9849
Gabriela Riet Correa RiveroAnimal Pathology Laboratory (LAPATO), Federal University of Pará (UFPA), Graduate Program in Animal Health in the Amazon (PPGSAAM), Castanhal, Pará, Brazil.ORCID https://orcid.org/0000-0003-3218-4169
Pedro Soares Bezerra JúniorAnimal Pathology Laboratory (LAPATO), Federal University of Pará (UFPA), Graduate Program in Animal Health in the Amazon (PPGSAAM), Castanhal, Pará, Brazil.ORCID https://orcid.org/0000-0002-1014-2999

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 001
6 · The paper itself

Abstract

Leydig cell tumors (LCTs) are uncommon in nonhuman primates (NHPs). A bilateral LCT was identified in a 20-year-old male capuchin monkey (Sapajus apella) maintained under human care. Ultrasonography revealed a right testicular nodule, while necropsy identified bilateral testicular masses. Histopathology confirmed bilateral LCT. This case documents bilateral LCT in S. apella, a rare finding in NHPs.

Indexed as

Leydig Cell TumorMonkey DiseasesSapajus apellaTesticular NeoplasmsAnimalsMalenonhuman primatesreproductive pathologytesticular neoplasia

Identifiers

PMID42806459
PMCPMC13620199

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.