Leptomeningeal metastases of a well-differentiated neuroendocrine tumour: a rare entity.

Autor: Versluis, J. M., Brandsma, D., van den Berg, J. G., Tesselaar, M. E. T.
Zdroj: BMJ Case Reports; 11/3/2018, Vol. 2018, p1-3, 3p, 2 Diagrams
Abstrakt: A 73-year-old man, without any medical history, had presented with dark urine and pale stool without pain. Diagnostic imaging revealed a tumour in the pancreas with liver metastases. Histopathological examination showed a well-differentiated pancreatic neuroendocrine tumour. After a stable 2.5 years on everolimus, progression of the liver metastases was seen and a switch was made to chemotherapy. Three months later, he developed progressive spinal neurological symptoms. MRI of the spine and brain revealed leptomeningeal contrast-enhancing lesions. Cytopathological examination of the cerebrospinal fluid showed malignant epithelial cells compatible with well-differentiated neuroendocrine tumour. Epithelial cell-adhesion molecule-based flow cytometry of the cerebrospinal fluid confirmed the presence of epithelial tumour cells. Based on these results, the diagnosis of leptomeningeal metastases of an originally well-differentiated neuroendocrine tumour of the pancreas was made. [ABSTRACT FROM AUTHOR]
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