Results 81 to 90 of about 22,510 (222)

Surgical excision of melanomas in the anal region and reconstruction of the anus in 11 horses

Equine Veterinary Education, EarlyView.
Summary This case report describes the surgical excision of large perianal and perineal melanomas, and reconstruction of the anus in 11 grey horses. Four horses had a history of painful defaecation or urination due to extensive tumours. Seven horses had no clinical signs at the time of admission but had rapidly growing nodules around the anus with ...
F. Somm, A. E. Fürst, M. A. Jackson
wiley   +1 more source

Long‐term outcome of a non‐reducible congenital atlanto‐occipital subluxation in a warmblood foal

Equine Veterinary Education, EarlyView.
Summary An 11‐day‐old warmblood colt was referred to the Large Animal Teaching Hospital, University of Copenhagen, for further investigation of a stiff neck and lateral deviation of the poll, with suspicion of a congenital cervical vertebral abnormality.
D. M. T. Adler, S. Hansen, L. Rasmussen, S. Jacobsen   +3 more
wiley   +1 more source

anal canal

Citation: 'anal canal' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10374 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

A wild‐caught rosy barb Pethia conchonius in a British urban pond underscores the need to prevent aquarium releases

Journal of Fish Biology, EarlyView.
Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry, Phil I. Davison, Luke Pearson, Gordon H. Copp   +3 more
wiley   +1 more source

A new South American darter (Crenuchidae: Characidium) from rivers draining the Northeastern Mata Atlantica Freshwater Ecoregion, Brazil: morphological and molecular evidence

Journal of Fish Biology, EarlyView.
Abstract Characidium tupi, a new species from rivers draining the southern portion of the Northeastern Mata Atlantica Freshwater Ecoregion, is described. The new species can be distinguished from all congeners by its colour pattern, including 7–14 dark bars enlarged and more conspicuous on their ventralmost portion, resulting in a longitudinal series ...
Angela M. Zanata, Leonardo Oliveira‐Silva   +1 more
wiley   +1 more source

Integrative taxonomy reveals four new species of the armoured catfish genus Pareiorhina (Siluriformes: Loricariidae) from the upper Paraná River basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Four new species of the small‐sized armoured catfish genus Pareiorhina are described from mountain ranges in the Grande River drainage, upper Paraná River basin, based on morphological and molecular species delimitation methods. Molecular analyses based on the cytochrome oxidase subunit I (COI) marker recovered Pareiorhina as polyphyletic ...
Pedro L. C. Uzeda, Luana J. Sartori, Axel M. Katz, Felipe P. Ottoni, Wilson J. E. M. Costa, Francisco Langeani, Valter M. Azevedo‐Santos   +6 more
wiley   +1 more source

3D endoanal ultrasound versus external phased array MRI in detection and evaluation of anal sphincteric lesions

The Egyptian Journal of Radiology and Nuclear Medicine
Background The anal sphincteric complex is formed by internal and external sphincters making two partially overlapping tubes around the anal canal. Anal sphincteric lesions represent a spectrum of entities with different patients’ presentations and ...
Asmaa Ahmed Abdelzaher, Mohamed Yehia Ahmed Elbarmelgi, Hatem Mohamed Said El Azizi, Alaa Sayed Mohamed, Mohamed A. Abdelatty, Heba Allah Mounir Azzam   +5 more
doaj   +1 more source

Redefinition of Stemonosudis intermedia (Ege, 1933) and description of a new species from the western Atlantic Ocean (Aulopiformes: Paralepididae)

Journal of Fish Biology, EarlyView.
Abstract We examined specimens of slender barracudina in the genus Stemonosudis collected from the western Atlantic Ocean. Investigation revealed that seven specimens represent the first adult records of Stemonosudis intermedia (Ege, 1933), previously known only from juveniles. We redescribed S.
Hsuan‐Ching Ho, Katherine E. Bemis
wiley   +1 more source

Unravelling the skin of the nurse shark: A morphological description of the placoid scales of Ginglymostoma cirratum

Journal of Fish Biology, EarlyView.
Abstract Ginglymostoma cirratum, commonly known as the nurse shark, is a nocturnally active benthic shark, often found in western and eastern Atlantic waters. Although this shark has been well explored in many biological aspects, few studies have thoroughly examined the morphology of its dermal denticles (or placoid scales).
Danilo P. Lima, Aline. N. Poscai, Laura F. Mianutti, Nathalie. M. R. de Abreu, Jade Medeiros, Marcus V. G. Araújo, Frederico. B. de Sousa, João Paulo C. B. da Silva   +7 more
wiley   +1 more source

Correlation of the Anatomy of the Intersphincteric Anal Fistula with Sex: An Analysis through Anorectal Three-Dimensional Ultrasound

Journal of Coloproctology
Introduction Anal fistula surgery is often associated with continence disorders due to transection of the anal sphincter muscles. A comprehensive understanding of the anatomy of the anal canal and fistula can help prevent this outcome.
Graziela Olivia da Silva Fernandes, Maysa Queiroz Maciel, Rosilma Gorete Lima Barreto, Maura Tarcianny Oliveira Cajazeiras, Nikolay Coelho da Mota, Yana Pavan, Marcelo Travassos Pinto, Letícia Freitas de Aquino, João Batista Pinheiro Barreto   +8 more
doaj   +1 more source