title: Temporally separated bilateral anal sac gland carcinomas in four dogs.
abstract: Anal sac gland carcinoma arising from the apocrine secretory epithelium in the anal sac wall, is locally invasive and highly metastatic. The majority of anal sac gland carcinomas are unilateral on presentation, but bilateral tumours have been identified. This case series presents the outcome of four unique cases of unilateral anal sac gland carcinoma which subsequently developed contralateral anal sac gland carcinoma 50 to 390 days after removal of the initial tumour. Median survival was 1035 days after initial diagnosis and 807 days after diagnosis of the second anal sac gland carcinoma.
authors: Centre for Small Animal Studies, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU.
authors: K L
authors: KL
authors: Bowlt
authors: E J
authors: EJ
authors: Friend
authors: P
authors: P
authors: Delisser
authors: S
authors: S
authors: Murphy
authors: G
authors: G
authors: Polton
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D000694:Anal Gland Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D000695:Anal Sacs / Q000473:pathology* / Q000601:surgery; D000818:Animals; D004283:Dog Diseases / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D004285:Dogs; D017809:Fatal Outcome; D005260:Female; D008297:Male