BACKGROUND: Lymphoepithelial tumors are the most common carcinomas of the nasopharynx. The non-differentiated tumor, also called Schmincke's tumor, is more prevalent in the African and Chinese population. The incidence of the tumor according to age peaks between 20 and 30 years of age, and after 60 years of age. The tumor is rarely located outside of the nasopharynx. Case Report: This report is about a 73-year-old female patient diagnosed with a tumor of the base of the tongue. The histological result shows a low-grade carcinoma of the squamous epithelium, a lymphoepithelial carcinoma. CONCLUSION: Despite the tumor's rare manifestation outside the nasopharynx, one must also consider the non-differentiated carcinoma of lymphoepithelial matrix. Especially due to the well-known early tumor spreading, cervical lymph node swelling on both sides can be recognized as a possible early symptom. First-line therapy consists of primary radiation of the tumor's primary region and its lymphoid draining channels. Concomitant chemotherapy can be applied. In case of cervical tumor spreading, a neck dissection reduces the risk of local recurrence.