Metastatic apocrine sweat gland adenocarcinoma in a terrier dog  

作　　者：Akhtardanesh Baharak Kheirandish Reza Dabiri Shahriar Azari Omid Vosoogh Daruoosh Askari Nasrin 

机构地区：[1]Department of Clinical Sciences,Faculty of Veterinary Medicine,Shahid Rahonar University of Kerman [2]Department of Pathobiology,Faculty of Veterinary Medicine,Shahid Bahonar University of Kerman [3]Department of Pathology,Afzalipour Medical School

出　　处：《Asian Pacific Journal of Tropical Biomedicine》2012年第8期670-672,共3页亚太热带生物医学杂志（英文版）

摘　　要：This report describes the clinical and pathological aspects of an apocrine sweat gland carcinoma with distant metastasis in an aged dog.A 7-year-old male terrier dog was referred to small animal hospital of Shuhid Bahonar University of Kerman with a 5.5×3.5 centimeter pedunculated mass on its head near left auricular region which had been progressively growing since tliree months ago.The radiography showed no local and distant metastasis.Surgical excision and histological evaluation was done.Histologically,the mass was composed of epithelial cells arranged in glandular and solid patterns.The morphologic findings suggested either a primary or metastatic apocrine-gland carcinoma.Immunohistochemically,the tumor cells were intensely positive for cytokeratin 7 and 20 and negative for S100 protein.On the basis of histopathological and clinical findings,the tumor was diagnosed as a malignant apocrine gland tumor,arising from apocrine sweat glands of the skin.Local tumor recurrence with anorexia and weight loss was reported by the owner nine month later.Severe submandibular and prescapular lymphadenomegaly was noted in clinical examination.Several large pulmonary nodules were noted in chest radiographs resembling mediastinal lymph node metastasis.Second surgery and chemotherapy was rejected by the owner due to grave prognosis of the patient.The animal was died 45 days later due to respiratory complications.Tumors of apocrine sweat glands are relatively uncommon in dogs whereas apocrine gland adenocarcinoma with distant metastasis is extremely rare.This report describes the clinical and pathological aspects of an apocrine sweat gland carcinoma with distant metastasis in an aged dog.A 7-year-old male terrier dog was referred to small animal hospital of Shuhid Bahonar University of Kerman with a 5.5×3.5 centimeter pedunculated mass on its head near left auricular region which had been progressively growing since tliree months ago.The radiography showed no local and distant metastasis.Surgical excision and histological evaluation was done.Histologically,the mass was composed of epithelial cells arranged in glandular and solid patterns.The morphologic findings suggested either a primary or metastatic apocrine-gland carcinoma.Immunohistochemically,the tumor cells were intensely positive for cytokeratin 7 and 20 and negative for S100 protein.On the basis of histopathological and clinical findings,the tumor was diagnosed as a malignant apocrine gland tumor,arising from apocrine sweat glands of the skin.Local tumor recurrence with anorexia and weight loss was reported by the owner nine month later.Severe submandibular and prescapular lymphadenomegaly was noted in clinical examination.Several large pulmonary nodules were noted in chest radiographs resembling mediastinal lymph node metastasis.Second surgery and chemotherapy was rejected by the owner due to grave prognosis of the patient.The animal was died 45 days later due to respiratory complications.Tumors of apocrine sweat glands are relatively uncommon in dogs whereas apocrine gland adenocarcinoma with distant metastasis is extremely rare.

关 键 词：APOCRINE SWEAT GLAND ADENOCARCINOMA DOG Metastasis Tumor recurrence Diagnosis 

分 类 号：S858.292[农业科学—临床兽医学]