Intraventricular metastases are a rare occurrence,particularly from a primary colorectal malignancy.To our knowledge,this is the first report of intraventricular metastasis from rectal cancer.A 72-year-old male presen...Intraventricular metastases are a rare occurrence,particularly from a primary colorectal malignancy.To our knowledge,this is the first report of intraventricular metastasis from rectal cancer.A 72-year-old male presented with a new diagnosis of multiple intraventricular lesions,an anterior mediastinal mass and a rectal mass.His workup revealed rectal adenocarcinoma with intraventricular metastases and an incidental thymoma.Ommaya reservoir placement was performed via an awake procedure rather than under general anesthesia due to airway concerns.Cerebrospinal fluid(CSF) cytology was positive for malignancy and consistent with adenocarcinoma.Two weeks postoperatively,the patient underwent whole brain radiation.Although rare,this diagnosis should always be considered in the differential for solitary or multiple intraventricular lesions.CSF sampling is a useful alternative to intraventricular biopsy for diagnosis of intraventricular metastases.Awake placement of Ommaya reservoir is a safe option in the management of patients with intraventricular metastases,especially those who cannot undergo general anesthesia.展开更多
Dysembryoplastic neuroepithelial tumors （DNTs） are graded as neural and mixed neuroglial tumors （WHO Ⅰ）.They almost locate in superior tentorium lobe,and often in temporal lobe.It frequently associated with intra...Dysembryoplastic neuroepithelial tumors （DNTs） are graded as neural and mixed neuroglial tumors （WHO Ⅰ）.They almost locate in superior tentorium lobe,and often in temporal lobe.It frequently associated with intractable localization-related epilepsy in children and young adults.Its typical pathological features include disorganized arrangement of neuronal and glial elements without significant cytological atypia and frequent association of foci of dysplastic cortical disorganization.DNTs are generally regarded as essentially benign lesions,so surgical complete resection is the unique treatment without any need for chemotherapy and/or radiation therapy.Keywords：intraventricular dysembryoplastic neuroepithelial tumor; manifestation; treatment展开更多
文摘Intraventricular metastases are a rare occurrence,particularly from a primary colorectal malignancy.To our knowledge,this is the first report of intraventricular metastasis from rectal cancer.A 72-year-old male presented with a new diagnosis of multiple intraventricular lesions,an anterior mediastinal mass and a rectal mass.His workup revealed rectal adenocarcinoma with intraventricular metastases and an incidental thymoma.Ommaya reservoir placement was performed via an awake procedure rather than under general anesthesia due to airway concerns.Cerebrospinal fluid(CSF) cytology was positive for malignancy and consistent with adenocarcinoma.Two weeks postoperatively,the patient underwent whole brain radiation.Although rare,this diagnosis should always be considered in the differential for solitary or multiple intraventricular lesions.CSF sampling is a useful alternative to intraventricular biopsy for diagnosis of intraventricular metastases.Awake placement of Ommaya reservoir is a safe option in the management of patients with intraventricular metastases,especially those who cannot undergo general anesthesia.
文摘Dysembryoplastic neuroepithelial tumors （DNTs） are graded as neural and mixed neuroglial tumors （WHO Ⅰ）.They almost locate in superior tentorium lobe,and often in temporal lobe.It frequently associated with intractable localization-related epilepsy in children and young adults.Its typical pathological features include disorganized arrangement of neuronal and glial elements without significant cytological atypia and frequent association of foci of dysplastic cortical disorganization.DNTs are generally regarded as essentially benign lesions,so surgical complete resection is the unique treatment without any need for chemotherapy and/or radiation therapy.Keywords：intraventricular dysembryoplastic neuroepithelial tumor; manifestation; treatment
