[Intramural jejunal lipoma in the small intestine of a young Arabian horse causing invagination of the jejunum].
Abstract: A 2-year-old Arabian horse was presented with severe colic symptoms. During explorative laparotomy, a jejuno-jejunal invagination secondary to a submucosal intestinal mass was detected. The involved jejunal segment was surgically removed and an end-to-end anastomosis was created. Opening the specimen demonstrated the presence of a nodular mass on the head of the intussusceptum, measuring 10 cm in diameter, and almost completely obliterating the intestinal lumen. Additionally, a severe hyperemia of the jejunal mucosa was visible. Histological examination, which revealed a well-demarcated mass in the submucosa of the jejunum consisting of well-differentiated adipocytes, led to the diagnosis of an intramural lipoma. The small intestinal mucosa displayed mild to moderate signs of congestion. Pedunculated lipomas in the mesentery of horses causing intestinal volvulus and obstruction are a frequent cause of small-intestine strangulation in aged horses. To the authors' knowledge, intramural intestinal lipomas to date have not been described in the horse. The mare recovered without complications and was free of colic symptoms after 6 months. Eine 2-jährige Araberstute wurde mit schweren Koliksymptomen vorgestellt. Die explorative Laparotomie ergab eine Jejunuminvagination verursacht durch eine intramurale Umfangsvermehrung. Das betroffene Jejunumsegment wurde reseziert und eine End-zu-End Anastomose geschaffen. Am eröffneten Resektat zeigte sich eine noduläre Umfangsvermehrung innerhalb der Submukosa am Anfang des Intussuszeptums mit einem Durchmesser von 10 cm, die zu einer beinahe vollständigen Obliteration des intestinalen Lumens führte. Zusätzlich war eine ausgeprägte Hyperämie der Jejunummukosa erkennbar. Bei der histopathologischen Untersuchung wurde in der Submukosa des Jejunums eine gut abgrenzbare Umfangsvermehrung bestehend aus gut differenzierten Adipozyten festgestellt und die Diagnose eines intramuralen Lipoms gestellt. Die Dünndarmmukosa zeigte leichte bis mittelschwere Anzeichen einer Kongestion. Ein Lipoma pendulans induziert bei älteren Pferden häufig eine Dünndarmstrangulation, die operativ behoben werden muss. Nach Kenntnis der Autoren wurde ein intramurales Lipom bisher nicht als Ursache einer Dünndarminvagination beschrieben. Die Stute erholte sich komplikationslos und zeigte auch 6 Monate nach der Operation keine weiteren Kolikanzeichen.
© Georg Thieme Verlag KG Stuttgart · New York.
Publication Date: 2019-02-26 PubMed ID: 30808031DOI: 10.1055/a-0825-7296Google Scholar: Lookup
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Summary
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An intramural jejunal lipoma, a submucosal intestinal mass, was the cause of severe colic symptoms in a young Arabian horse. The horse underwent surgery and recovered without complications, with no colic symptoms after 6 months.
Case Presentation
- A 2-year-old Arabian horse displayed severe colic symptoms leading to an explorative laparotomy.
- The surgery revealed a jejuno-jejunal invagination, a condition where the jejunal segment of the intestine folds into itself. This was caused by a submucosal intestinal mass.
Surgical Procedure and Diagnostics
- The affected jejunal segment was surgically removed, and an end-to-end anastomosis, which involves connecting the two ends of the intestine, was created.
- Upon examination of the removed tissue, a nodular mass was discovered at the head of the intussusceptum. This mass, around 10 cm in diameter, was almost completely blocking the intestinal lumen or cavity.
- The jejunal mucosa also showed significant hyperemia, which is an excess of blood in the vessels supplying an organ.
- The mass was well-differentiated adipocytes, as revealed by histological examination. This diagnosis concluded that the mass was an intramural lipoma, a benign tumor made up of fat cells.
Comparison with Existing Literature
- Lipomas are a common cause of small-intestine strangulation in aged horses; however, such tumors are typically located in the mesentery, the connective tissue in the abdomen that holds the small intestine in place.
- The authors note that intramural intestinal lipomas in horses have not been previously described in literature, making this case unique.
Postoperative Recovery and Follow-Up
- The horse recovered from the surgery without complications.
- Horse was not showing any recurrence of colic symptoms after a 6-month monitoring period.
Cite This Article
APA
Vidović A, Jansen D, Hermeyer K.
(2019).
[Intramural jejunal lipoma in the small intestine of a young Arabian horse causing invagination of the jejunum].
Tierarztl Prax Ausg G Grosstiere Nutztiere, 47(1), 55-59.
https://doi.org/10.1055/a-0825-7296 Publication
Researcher Affiliations
- Pferdeklinik St. Georg.
- Pferdeklinik St. Georg.
- IDEXX Vet Med Labor.
MeSH Terms
- Animals
- Colic / etiology
- Horse Diseases / etiology
- Horse Diseases / surgery
- Horses
- Intussusception / etiology
- Intussusception / surgery
- Intussusception / veterinary
- Jejunal Neoplasms / complications
- Jejunal Neoplasms / surgery
- Jejunal Neoplasms / veterinary
- Jejunum / surgery
- Lipoma / complications
- Lipoma / surgery
- Lipoma / veterinary
Conflict of Interest Statement
Die Autoren bestätigen, dass kein Interessenkonflikt besteht.
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