Cervical intranodal schwannoma - a rare diagnosis.

Intranodal schwannoma is a rare benign tumor, which originates from the peripheral nerve sheath (Schwann cells), fewer cases being reported with lymphatic involvement. We present the case of a middle-aged female patient, with one-year growing mass in the lateral-cervical area, in intimate relation with the vascular package of the neck. Preoperative cervical computed tomography examination showed the tumor features. There was no intraoperative complication, with the piece being completely removed. The morphological examination revealed the structure of a lymph node, and after Hematoxylin-Eosin staining, there were eosinophilic cytoplasm, euchromatic nuclei, with round, elongated or slightly wavy form and reduced pleomorphism, rare degenerative nuclear atypia, and no mitotic activity nor necrosis. The expression of S100 protein on immunohistochemistry, along with negative results for smooth muscle actin and desmin sustained the diagnosis of intranodal schwannoma of the neck. With a low index of cellular proliferation (Ki67), this case is in line with the reported features of schwannoma having extremely rare malignant transformation.

Non-Hodgkin's lymphoma, rare localization at the base of the tongue - case presentation.

The extranodal malignant lymphomas occur mainly in the region of the head and neck, after the gastrointestinal tract. The most common site of the head and neck lymphoma is at the lymphatics ring of Waldeyer, followed by the nasosinusal region. Localization at the base of the tongue is extremely rare. The authors reported a case of a 50-year-old male with a non-Hodgkin's lymphoma, which developed at the base of tongue. An unusual sensation described as a foreign body at the hypopharyngeal region associated with progressive dysphagia were the main symptoms for which the patient was referred to our Hospital. The fibroscopic exam has revealed an oval tumor of the base of tongue, with large dimensions, sessile emergent base and smooth superficial mucosa. The tumor was removed using an endoscopic transoral approach, followed by the histopathological and immunohistochemical examination, which have been suggestive for non-Hodgkin's lymphoma with small B-cells. The treatment continued with chemotherapy, while radiotherapy was not necessary due to the fact that the tumor was completely removed.