https://www.selleckchem.com/products/glesatinib.html The term CUP syndrome (cancer of unknown primary) refers to a multifaceted clinical picture in which the affected patients have lymph node and/or distant metastases without the location of the primary tumor being known. The criteria of CUP syndrome are fulfilled if a histologically or cytologically confirmed malignancy is present without a detectable primary tumor after completion of the primary diagnosis. Due to the usually poor prognosis and the manifold appearance, which often does not allow a standardized therapy, cervical CUP syndrome makes specific demands on clinical and imaging diagnostics. Using modern techniques such as positron emission tomography-computed tomography (PET-CT), imaging plays a key role in the detection of a possible occult primary tumor as well as in staging and prognosis assessment. Oral cavity malignancies are the most common tumors in the field of ear, nose and throat medicine or otorhinolaryngology worldwide. It comprises aheterogeneous group of tumors, the knowledge of which is necessary to meet the different requirements of diagnostics and therapy. Computed tomography (CT), magnetic resonance imaging (MRI), sonography (US), nuclear medical procedures (NUK). The above-mentioned diagnostics are used in acomplementary manner. Early diagnosis of the tumor improves staging and thus the patient's therapy and prognosis. The radiologist plays an important role in the interdisciplinary treatment of malignant tumors of the oral cavity. Despite great progress in radiotherapy, oncology and immunotherapy, surgery still plays an important role in the treatment of malignant diseases of the oral cavity. The radiologist plays an important role in the interdisciplinary treatment of malignant tumors of the oral cavity. Despite great progress in radiotherapy, oncology and immunotherapy, surgery still plays an important role in the treatment of malignant diseases of the oral cavity.Overproduction of re