Özet:

Okult breast cancer is a type of cancer that has no physical examination in the breast; or is a type of cancer that is not radiologically demonstrated. Usually the primary unidentified abstinences show themselves with metastasis. Breast cancer is a rare type of cancer in men. School breast cancer is much more rare and in literature only cases are in the form of fact presentation. A 46-year-old male patient has been exhaustive biopsy in another health institution for 3 months under the right seat. The pathological diagnosis is in the form of adenocarcinoma metastasis, where the findings are in the forefront of the infiltrative duktal carcinoma of the breast. The patient was primarily focused on the research of the western and toral tomography, the upper and lower gastrointestinal system endoscopies. Breast ultrasound, breast magnetic resonance imaging and positron emission tomography were taken. When there was no positive outcome from the point of view of the primary focus, the patient was considered as a breast cancer and a modified radical mastectomy was performed. As a result, in the presence of metastatic lymphatic nodes unknown primary, even if the patient is male, occult breast cancer should be remembered.