Polyposis
From Dog
Characteristic appearance of Barrett's esophagus in a dog[1]
Polyposis (proliferative polyps) refers to the formation of large numbers of pedunculated polyps, usually associated with mucous membranes.
Polyps can be found in the colon, stomach, nose, sinuses, urinary bladder and uterus.
In dogs, polyps are seen associated with:
- Nasal polyposis[2] - predisposition with brachycephalic syndrome, characterized by reverse sneezing, nasal discharge, epistaxis and stertor when breathing. Differentiate from foreign bodies, nasal tumors, bacterial/fungal infections, lymphocytic-plasmacytic rhinitis[3]
- Middle ear polyps[4] - characterized by otitis media and/or otitis externa
- Bronchial myxosarcoma - endobronchial polyps[5]
- Cystic endometrial hyperplasia, endometrial polyps[6], pyometra
- Tonsillitis - lymphangiomatous polyps[7]
- Barrett's esophagus - adenomatous polyps with intestinal metaplasia of the esophagus due to gastro-esophageal reflux[1]
- Gastric polyposis[8], pyloric stenosis
- Intestinal lymphomatous polyposis[9].
- Intestinal hamartomatous polyps[10]
- Intestinal adenomatous polyps[11]
- Rectal[12] and colorectal[13] polyposis - predisposition in the Miniature Dachshund[14]
- Vaginal fibroepithelial polyps[15] - to be distinguished from vaginal hyperplasia
- Renal polyps[16] - predisposition to transformation to carcinoma
- Ureteral polyps[17]
- Urinary bladder polyps[18] - concurrent cystitis common, curettage usually curative
- Urethral polyps[19]
Diagnosis usually requires endoscopic or laparoscopic visualization with histological examination of biopsied material[20].
Skin polyps, an unrelated disease, is commonly observed as papilloma.
Treatment is usually curative, but some may be pre-neoplastic and warrant follow-up investigation.
References
- ↑ 1.0 1.1 Gibson CJ et al (2010) Adenomatous polyp with intestinal metaplasia of the esophagus (Barrett esophagus) in a dog. Vet Pathol 47(1):116-119
- ↑ Osaki T et al (2012) Temporary regression of locally invasive polypoid rhinosinusitis in a dog after photodynamic therapy. Aust Vet J 90(11):442-447
- ↑ Lobetti RG et al (2009) A retrospective study of chronic nasal disease in 75 dogs. J S Afr Vet Assoc 80(4):224-228
- ↑ Pratschke KM (2003) Inflammatory polyps of the middle ear in 5 dogs. Vet Surg 32(3):292-296
- ↑ Hill RC et al (2008) Endobronchial polyp derived from a myxosarcoma in the lung of a dog. J Am Anim Hosp Assoc 44(6):327-334
- ↑ Chambers B et al (2011) Unilateral uterine torsion secondary to an inflammatory endometrial polyp in the bitch. Aust Vet J 89(10):380-384
- ↑ Miller AD et al (2008) Tonsillar lymphangiomatous polyp in an adult dog. J Comp Pathol 138(4):215-217
- ↑ Teshima T et al (2013) Multiple inflammatory gastric polyps treated by endoscopic polypectomy with argon plasma coagulation in a dog. J Small Anim Pract Feb 9
- ↑ Jeong DH et al (2006) Multiple intestinal lymphomatous polyposis in a Jindo dog. J Vet Sci 7(4):401-403
- ↑ Bemelmans I et al (2011) Colorectal hamartomatous polyposis and ganglioneuromatosis in a dog. Vet Pathol 48(5):1012-1015
- ↑ Harris ES & Nelson WJ (2010) Adenomatous polyposis coli regulates endothelial cell migration independent of roles in beta-catenin signaling and cell-cell adhesion. Mol Biol Cell 21(15):2611-2623
- ↑ Hayashi K et al (2012) The role of endoscopic ultrasound in the evaluation of rectal polypoid lesions in 25 dogs. Jpn J Vet Res 60(4):185-289
- ↑ Tsukamoto A et al (2012) A case of canine multiple inflammatory colorectal polyps treated by endoscopic polypectomy and argon plasma coagulation. J Vet Med Sci 74(4):503-506
- ↑ Ohmi A et al (2012) A retrospective study of inflammatory colorectal polyps in miniature dachshunds. J Vet Med Sci 74(1):59-64
- ↑ Brown PJ et al (2012) Fibroepithelial polyps of the vagina in bitches: a histological and immunohistochemical study. J Comp Pathol 147(2-3):181-185
- ↑ Russell DS et al (2011) Pathology in practice. Reactive renal polyps and prostatic carcinoma. J Am Vet Med Assoc 239(4):447-449
- ↑ Farrell M et al (2006) Ureteral fibroepithelial polyp in a dog. J Small Anim Pract 47(7):409-412
- ↑ Wolfe TM et al (2010) Surgical management of diffuse polypoid cystitis using submucosal resection in a dog. J Am Anim Hosp Assoc '46(4):281-284
- ↑ Elwick KE et al (2003) Neodymium:Yttrium-aluminum-Garnet (Nd:YAG) laser ablation of an obstructive urethral polyp in a dog. J Am Anim Hosp Assoc 39(5):506-508
- ↑ Foy DS & Bach JF (2010) Endoscopic polypectomy using endocautery in three dogs and one cat. J Am Anim Hosp Assoc 46(3):168-173
