Lobular carcinoma of the breast metastatic to the oral cavity mimicking polymorphous low-grade adenocarcinoma of the minor salivary glands.
ABSTRACT The oral cavity is a rare site of metastatic lesions; however, metastatic breast carcinoma must be included in the differential diagnosis of tumors of that site in women. We describe a 54-year-old woman who presented with a lesion of the floor of the mouth that histologically resembled polymorphous low-grade adenocarcinoma of the minor salivary glands, which was eventually established to represent metastatic lobular breast carcinoma. The final diagnosis was based on comparison with a primary tumor resected 13 years earlier and immunohistochemical reactivity with antibodies to steroid receptors. Relevant aspects of lobular breast carcinoma, polymorphous low-grade adenocarcinoma, and metastatic oral cavity lesions are discussed.
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- "Thus, it is a diagnosis of exclusion. They fall broadly into two categories: 1) the occasional low-grade terminal duct/polymorphous adenocarcinoma (PLGA) arising from the intercalated ducts, which microscopically resemble lobular carcinoma of the breast  and are most commonly found in the palate, and 2) the high-grade salivary duct adenocarcinoma that arise from the major salivary glands and typically metastasize early and "
ABSTRACT: Malignant salivary gland neoplasms are rare, representing approximately 3% to 7% of all head and neck cancers. Contrasting from the more common mucosal head and neck cancers, which, in general, are ascribed to excessive tobacco, alcohol use, and more recently to viral infection, specific carcinogenic factors for malignant salivary gland growths have not been as clearly identified. Histologically, they represent a heterogeneous group of tumors. Forty histologic types of epithelial tumors of the salivary glands have been reported; some are exceedingly rare and may be the topic of only a few case reports. Salivary tumors can arise in the major salivary glands or in one of the minor salivary glands (predominantly mucus secreting glands), which are distributed throughout the upper aerodigestive. Most patients who develop malignant salivary gland tumors are in the sixth or seventh decade of life. FNA should be considered as part of the diagnostic evaluation but due to its varying sensitivities and specificities imaging modalities such as ultrasound, CT scans, and MRI should also be used as diagnostic adjuncts. Surgery is the primary modality for management of these tumors, nontraditional surgical approaches and instrumentation, as well as facial nerve monitoring, can be selectively utilized to try and decrease the morbidity associated with these surgical procedures. Adjuvant treatment is primarily achieved with radiation therapy. Chemotherapy continues to have a palliative role in the management of salivary gland tumors; however, research in this field is trying to identify a therapeutic role for chemotherapy in order to improve overall survival. Keywords: Salivary Gland Tumors, Epidemiology of Salivary Gland Tumors, Types of Salivary Gland Tumors, Diagnosis and Treatment of Salivary Gland TumorsCancer treatment and research 08/2013; 1(1):8-24. DOI:10.11648/j.jctr.20130101.12
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ABSTRACT: Papillary cystadenocarcinoma is a rare malignant neoplasm of the salivary gland. We report a case of papillary cystadenocarcinoma arising from the minor salivary gland in the anterior portion of the tongue of a 72-year-old male patient with a history of adenocarcinoma of the colon and prostate. Further, we discussed histopathological and clinical features of this lesion, and reviewed the literature.Auris Nasus Larynx 02/2002; 29(1):87-90. DOI:10.1016/S0385-8146(01)00121-3 · 1.14 Impact Factor
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ABSTRACT: Oral metastasis of breast cancer is less common than metastasis to other sites like the lung and liver. Breast cancer can metastasize to the oral cavity, with presentation like a benign oral lesion. We present an interesting case of breast cancer involving the gingiva with sparing of the underlying bone.Journal of Oral and Maxillofacial Pathology 01/2009; 13(1):38-40. DOI:10.4103/0973-029X.48756