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BenignAdenomaGland AdenocarcinomaType of tumorSurgicalAbnormal growthsNeoplasmSurgicallySquamousInvadeCancerousMucoepidermoidPrognosisLesionsAbnormalitiesOtoscopeMalignancyInvasionBiopsyOuterInflammatoryConnectiveVeterinarianDogsTissuePrimarilyDog'sHistologicRadiationExternalGeneticCanalSkinTypesRareAnimalsMiddleOverviewRemainsSpreadRemovalContentPhysicalResults
Benign13
  • These glands are capable of developing both benign and malignant tumors. (wikipedia.org)
  • The benign tumors include ceruminous adenoma, ceruminous pleomorphic adenoma, and ceruminous syringocystadenoma papilliferum. (wikipedia.org)
  • On the basis of histologic similarities and distribution pattern, the histogenesis for most of the benign (adenoma, pleomorphic adenoma, and syringocystadenoma papilliferum) and malignant (adenocarcinoma, adenoid cystic carcinoma, and mucoepidermoid carcinoma) glandular tumors arising in the EAC is in all likelihood the ceruminous glands or their embryologic anlage. (medscape.com)
  • [ 29 , 30 ] Studies suggest that even if the site is restricted to tumors of the external auditory canal (EAC), glandular tumors are much less common (though these studies focused on carcinomas and did not record the presence of benign tumors). (medscape.com)
  • Surgical removal of benign ear canal tumors may be accomplished via lateral ear canal resection for access to the tumor mass. (merckvetmanual.com)
  • Tumors may be benign or malignant (cancerous). (merckvetmanual.com)
  • Benign tumors are not invasive, do not spread to other areas of the body, and are easy to remove surgically. (merckvetmanual.com)
  • Distinguishing a benign tumor from a cancerous tumor requires specialized knowledge and laboratory equipment. (merckvetmanual.com)
  • For benign tumors that are not ulcerated and do not impair the dog's normal routine, treatment may not be necessary. (merckvetmanual.com)
  • There are several treatment options for cancerous tumors and benign tumors that inhibit normal activities or are cosmetically unpleasant. (merckvetmanual.com)
  • Benign tumors tend to grow slowly and don't spread (metastasize). (petmd.com)
  • Tumors on the ear flap are more likely to be benign than tumors inside the ear. (petmd.com)
  • This article outlines several benign lesions and tumors of the external ear and gives the reader a basic understanding of their clinical features and treatment options. (medscape.com)
Adenoma2
  • Many of these reported middle ear tumors might have been better classified as middle ear adenoma or as neuroendocrine adenoma of the middle ear (NAME), tumor types that are believed to arise from the epithelium of the middle ear rather than from ceruminous glands. (medscape.com)
  • In short, the possibility of a true ceruminous gland-related adenoma arising in the middle ear is controversial, and such a diagnosis should be approached with caution. (medscape.com)
Gland Adenocarcinoma2
Type of tumor3
  • Treatment for a particular tumor depends largely on the type of tumor, its location and size, and the overall physical condition of the dog. (merckvetmanual.com)
  • After surgical removal, tumors should be evaluated under a microscope (called a histopathology test) to confirm the type of tumor and whether all of the tumor was likely removed. (merckvetmanual.com)
  • With this sample, your veterinarian may be able to determine the type of tumor or if the tumor has signs of malignancy. (petmd.com)
Surgical1
Abnormal growths2
  • Tumors are abnormal growths of cells. (merckvetmanual.com)
  • Ear tumors in dogs are any abnormal growths on or within the ear of the dog. (petmd.com)
Neoplasm1
  • Mucoepidermoid carcinoma is a malignant neoplasm of exocrine glands that arises predominantly in salivary glands. (bvsalud.org)
Surgically1
  • Laser surgery, especially when used in conjunction with a video otoscope, has made intraotic removal of these tumors relatively easy without having to open the canal surgically. (merckvetmanual.com)
Squamous1
  • Cancers on the pinna tend to be skin cancers , and common types include mast cell tumors and squamous cell carcinoma. (petmd.com)
Invade2
  • Malignant tumors can invade surrounding tissue and spread to distant organs. (merckvetmanual.com)
  • Malignant tumors grow rapidly, invade local tissues, and sometimes metastasize. (petmd.com)
Cancerous1
  • Not all ear tumors are cancerous, but all ear cancers are tumors. (petmd.com)
Mucoepidermoid1
Prognosis2
Lesions1
  • It also offers descriptions of relevant microscopic features and color microphotographs of the included lesions. (a3shop.hu)
Abnormalities1
  • Hormonal abnormalities and genetic factors may also play a role in the development of skin tumors. (merckvetmanual.com)
Otoscope3
  • Ceruminous gland tumors are best visualized in a clean ear using a video otoscope. (merckvetmanual.com)
  • Unless the mass protrudes from the opening to the external ear canal, your veterinarian will need an otoscope to see the tumor. (petmd.com)
  • For tumors in the external ear canal, your veterinarian may need an otoscope to view the tumor. (petmd.com)
Malignancy1
  • If malignancy is suspected, tissue surrounding the tumor will also be removed to increase the chance that none of the tumor cells are left behind. (merckvetmanual.com)
Invasion1
  • CT or MRI may be very useful in assessing the tympanic bulla more completely and in determining the extent of tumor invasion, especially in malignant tumors. (merckvetmanual.com)
Biopsy2
  • A veterinarian can perform a fine needle aspiration of cells or a biopsy (which removes a small amount of tissue from a tumor) for evaluation. (merckvetmanual.com)
  • If your veterinarian can reach the tumor, they may aspirate or biopsy the tumor to determine the type. (petmd.com)
Outer5
  • Ceruminous glands are specialized sudoriferous glands (sweat glands) located subcutaneously in the external auditory canal, in the outer third. (wikipedia.org)
  • Ceruminous glands are simple, coiled, tubular glands made up of an inner secretory layer of cells and an outer myoepithelial layer of cells. (wikipedia.org)
  • Like other apocrine-related glands, including mammary tissue, ceruminous glands are composed of an inner secretory layer of cells and an outer myoepithelial layer of cells. (medscape.com)
  • Between 1000 and 2000 ceruminous glands, along with sebaceous glands and associated hair follicles, typically occupy the outer, cartilaginous portion of the external auditory canal (EAC), with a few present in the auricular skin. (medscape.com)
  • Tumors of the Ear Canal in Dogs Tumors may develop from any of the structures lining or supporting the ear canal, including the outer layer of skin, the glands that produce earwax and oil, or any of the bones, connective tissues. (merckvetmanual.com)
Inflammatory1
  • Distinguishing a tumor from an inflammatory disease can sometimes be difficult. (merckvetmanual.com)
Connective1
  • Mast cell tumors are tumors of a specific white blood cell found in connective tissue, especially under the skin. (petmd.com)
Veterinarian3
  • Because skin tumors are so diverse, identifying them should be left to a veterinarian. (merckvetmanual.com)
  • Your veterinarian may see the ear tumor during a routine physical that includes an otoscopic exam of the ear canal-which is why annual exams are so important. (petmd.com)
  • If the tumor is on the pinna, your veterinarian will use a needle to collect a sample of cells to look at under a microscope. (petmd.com)
Dogs5
  • Median survival time for animals with malignant ear canal tumors has been reported to be >58 months in dogs and >11.7 months in cats. (merckvetmanual.com)
  • Radiation therapy can be used to treat excised ceruminous gland adenocarcinomas in dogs and cats, with a 56% 1-year survival rate reported. (merckvetmanual.com)
  • No data are available on the efficacy of chemotherapy for otic tumors of dogs and cats. (merckvetmanual.com)
  • Tumors affecting the skin or the tissue just under the skin are the most commonly seen tumors in dogs. (merckvetmanual.com)
  • Symptoms of ear tumors in dogs vary depending on tumor location. (petmd.com)
Tissue2
  • Deep en-bloc biopsies of the same tissue are often reported correctly as tumors. (merckvetmanual.com)
  • The latter is done by microscopically evaluating the edge of the resected tissue (the "margins") to see whether tumor cells are present. (msdvetmanual.com)
Primarily1
  • In breeds other than the American Cocker Spaniel, these tumors are often primarily in the vertical ear canal. (merckvetmanual.com)
Dog's1
  • Differential diagnoses for the dog's hypercalcemia included lymphoma, leukemia, multiple myeloma, primary hyperparathyroidism, and, less likely, excessive vitamin D consumption (because of the normal vitamin D concentration). (dvm360.com)
Histologic2
  • This book provides a comprehensive, state-of-the-art account of the role of immunohistochemistry in the diagnosis of skin tumors, which is crucial given that overlapping histologic features and unusual morphologic changes can lead to considerable diagnostic uncertainty. (edu.au)
  • Histologic findings include dermal inflammation and fibrosis associated with either a central hyperkeratotic plug or ulceration. (medscape.com)
Radiation2
  • Chemicals, solar radiation, and viruses are just some of the things that can cause skin tumors. (merckvetmanual.com)
  • His medical history included a postspinal tumour that had been treated with surgery and radiation more than 40 years ago and current complaints of right ear pain and purulent discharge. (bvsalud.org)
External3
  • Tumors in the external ear canal can be hard to see, particularly if they're deep in the canal. (petmd.com)
  • Breeds predisposed to ear cancer affecting the external ear canal or inner ear include Cocker Spaniels, German Shepherds, and Pugs. (petmd.com)
  • Malignant tumors of the external auditory canal are rare tumors and very often diagnosed at an advanced stage due to non-specific symptoms. (bvsalud.org)
Genetic1
  • No studies of the ceruminous gland-related tumors using molecular techniques or analyzing their genetic basis have been identified in the literature. (medscape.com)
Canal2
  • In the American Cocker Spaniel, these tumors can be found in the horizontal ear canal as well. (merckvetmanual.com)
  • More aggressive surgeries, such as total ear canal ablation and bulla osteotomy, are recommended for malignant tumors of the middle ear. (merckvetmanual.com)
Skin3
  • Skin tumors are diagnosed more frequently than other tumors in animals in part because they are the most easily seen tumors and in part because the skin is constantly exposed to many tumor-causing factors in the environment. (merckvetmanual.com)
  • All of the various layers and components of skin have the potential for developing distinctive tumors. (merckvetmanual.com)
  • The book includes coverage of diseases of the skin, eye, and musculoskeletal systems, and male and female reproductive tracts. (a3shop.hu)
Types2
  • Some of these reports were the result of confusing terminology, in that several different tumor types were originally categorized as ceruminoma, a term that should probably not be used. (medscape.com)
  • Indeed, immunohistochemistry has replaced simple morphologic evaluation as the definitive diagnostic method for various tumor types. (edu.au)
Rare1
  • Although the true incidence of ceruminous gland tumors is difficult to determine, it is clear that such tumors are uncommon, if not rare. (medscape.com)
Animals1
  • The concurrence of otitis media and ceruminous gland-related tumor development has also been reported in animals. (medscape.com)
Middle1
  • Ceruminous glands do not normally populate the middle ear, nor have ectopic ceruminous glands within the middle ear been reported. (medscape.com)
Overview1
  • For more information about the IPD, including a full description of the database's features, read the FAQ and Features Overview . (tdrdata.com)
Remains1
  • The ultimate cause for these tumors remains unknown. (medscape.com)
Spread1
Removal1
  • For tumors that cannot be completely removed, partial removal may prolong the life of the dog. (merckvetmanual.com)
Content1
  • After a source has been accepted into production, our analysts write a customized IPD Article Review that includes epidemiological data, methodology details, and other useful content. (tdrdata.com)
Physical1
  • A physical examination at Forest Hill Animal Clinic revealed mild dander, a dry coat, and ceruminous debris in both ears. (dvm360.com)
Results1
  • Run a Keyword Search for the most comprehensive results, including archived material. (tdrdata.com)