Abstract
The ultrasonographic findings for four cats with intestinal smooth muscle hypertrophy are described. In two cats, intestinal smooth muscle hypertrophy was associated with chronic enteritis. In the remaining two cats, intestinal smooth muscle hypertrophy affected the intestinal tract proximal to stenosis due to alimentary lymphoma and an intestinal foreign body, respectively. Moderate increased thickness of the affected intestinal wall, measuring 7–8 mm, was evident on abdominal ultrasonographic examination of all subjects. In addition, the ultrasonographic five‐layered feature of the intestinal wall was maintained, and only the muscular layer appeared thickened. Abdominal ultrasound allowed a presumptive diagnosis of intestinal smooth muscle hypertrophy that was confirmed histologically in all cats.
Keywords: abdominal ultrasound, cat, intestinal disorders, smooth muscle hypertrophy
REFERENCES
- 1. Rooney JR, Jeffcott LB. Muscular hypertrophy of the ileum in a horse. Vet Rec 1968;83:217–219. [DOI] [PubMed] [Google Scholar]
- 2. Hancock JL. Muscular hypertrophy of the ileum in the horse. Vet Rec 1968;83:304–305. [DOI] [PubMed] [Google Scholar]
- 3. Cordes DO, Dewes HF. Diverticulosis and muscular hypertrophy of small intestine of horses, pigs and sheep. N Z Vet J 1971;19:108–111. [DOI] [PubMed] [Google Scholar]
- 4. Chaffin MK, Fuenteabla IC, Schumacher J, et al. Idiopathic muscular hypertrophy of the equine small intestine: 11 cases (1980–1991). Equine Vet J 1992;24:372–378. [DOI] [PubMed] [Google Scholar]
- 5. De Lara FCM, Hervas J, Bautista MJ, et al. Intestinal smooth muscle hyperplasia in a goat. J Vet Diagn Invest 1996;8:390–392. [DOI] [PubMed] [Google Scholar]
- 6. Chu RM, Lin YL, Chi CS. Muscular hypertrophy of ileum in swine. J Chinese Soc Vet Sci 1989;15:73–81. [Google Scholar]
- 7. Spencer R, Hudson TL. Idiopathic muscular hypertrophy of the gastrointestinal tract in a child. Surgery 1961;50:678. [PubMed] [Google Scholar]
- 8. Uhrich GI. Idiopathic muscular hypertrophy of the intestinal tract. Am J Surg 1965;110:973–976. [DOI] [PubMed] [Google Scholar]
- 9. Gabella G. Hypertrophy of intestinal smooth muscle. Cell Tissue Res 1975;163:199–214. [PubMed] [Google Scholar]
- 10. Gabella G. Hypertrophic smooth muscle: I. Size and shape of cells, occurrence of mitoses. Cell Tissue Res 1979;201:63–78. [DOI] [PubMed] [Google Scholar]
- 11. Brehmer A, Gobel D, Freiser M, et al. Experimental hypertrophy of myenteric neurones in the pig: a morphometric study. Neurogastroenterol Motil 2000;12:155–162. [DOI] [PubMed] [Google Scholar]
- 12. Santos RL, Coelho MIM. Hipertrofia muscular intestinal idiopatica em cao: relate de caso. Arq Bras Med Vet Zoot 1998;50:525–529. [Google Scholar]
- 13. Guilford WG, Strombeck DR. Intestinal obstruction, pseudo‐obstruction and foreign bodies In: Guilford WG, Strombeck DR. Small animal gastroenterology, 3rd ed. Philadelphia : WB Saunders Co, 1996;487–502. [Google Scholar]
- 14. Penninck DG, Nyland TG, Kerr LY, Fisher PE. Ultrasonographic evaluation of gastrointestinal diseases in small animals. Vet Radiol Ultrasound 1990;31:134–141. [Google Scholar]
- 15. Baez JL, Hendrick MJ, Walker LM, Washabau RJ, Radiographic, ultrasonographic, and endoscopic findings in cats with inflammatory bowel disease of the stomach and small intestine: 33 cases (1990–1997). J Am Vet Med Assoc 1999;215:349–354. [PubMed] [Google Scholar]
- 16. Penninck DG. Gastrointestinal tract In: Nyland TG, Mattoon JS. (ed). Small animal diagnostic ultrasound, 2nd ed. Philadelphia : WB Saunders, 2002; 207–230. [Google Scholar]
- 17. Spohr A, Koch J, Jensen AL. Ultrasonographic findings in a basenji with immuno‐proliferative enteropathy. J Small Anim Pract 1995;36:79–82. [DOI] [PubMed] [Google Scholar]
- 18. Bettini G, Muracchini M, Delia Salda L, et al. Hypertrophy of intestinal smooth muscle in cats. Proceedings of the 16th Meeting of the European Society, Veterinary Pathology, Lillehammer, Norway , September 23–26, 1998; 166. [Google Scholar]
- 19. Penninck DG. Characterization of gastrointestinal tumors. Vet Clin N Am Small Anim Pract 1998;28:777–797. [DOI] [PubMed] [Google Scholar]
- 20. Penninck DG, Moore AS, Tidwell AS, et al. Ultrasonography of alimentary limphosarcoma in the cat. Vet Radiol Ultrasound 1994;35:299–304. [Google Scholar]
- 21. Hittmair K, Krebitz‐Gressel E, Kubber‐Heiss AK, Mostl K. Feline alimentary lymphosarcoma: radiographical, ultrasonographical, histological and virological findings. Eur J Comp Anim Pract 2001; 11:174–183. [Google Scholar]
- 22. Rivers BJ, Walter PA, Johnston GR. Ultrasonographic features of intestinal adenocarcinoma in five cats. Vet Radiol Ultrasound 1997;38: 300–306. [DOI] [PubMed] [Google Scholar]
- 23. Grooters AM, Biller DS, Ward H, et al. Ultrasonographic appearance of feline alimentary lymphoma. Vet Radiol Ultrasound 1994;35:468–472. [Google Scholar]
- 24. Lamb CR. Recent developments in diagnostic imaging of the gastrointestinal tract of the dog and cat. Vet Clin N Am Small Anim Pract 1999;29:307–342. [PubMed] [Google Scholar]