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Granular cell astrocytoma (GCA) is an aggressive variant of astrocytoma characterised by predominantly round-to-polygonal cells with abundant eosinophilic granular cytoplasm. This tumor usually lack the morphological signatures of conventional astrocytoma and are devoid of typical features which
Cytological techniques including touch and smear preparations are very useful diagnostic modality in the evaluation of central nervous system (CNS) lesions and, in many instances, may be effectively used as the sole modality of tissue preparation for intraoperative consultation. Cytologic
OBJECTIVE
To demonstrate the existence of two imaging patterns of cerebral hydatidosis and discuss its clinical importance.
METHODS
A retrospective review of six cases of cerebral hydatidosis using various imaging techniques including CT, MRI, angiography and cystogram.
RESULTS
Clinically the most
A case of unusual fibro-osseous lesion resembling osteoblastoma of the pineal region is reported, in a 50-year-old man. The patient presented with a history of headache, vomiting and generalized tonic-clonic seizures. CT scan showed a hyperdense lesion in the posterior third ventricle with
BACKGROUND
Chordoid meningioma is a rare subtype of meningioma characterized by myxoid matrices deposited among epithelioid or vacuolated tumor cells and infiltrates of inflammatory cells, and its cytologic features have rarely been reported.
METHODS
A 57-year-old man with a history of headache and
Primary central nervous system atypical teratoid/rhabdoid tumors mostly occur during early childhood and are almost invariably fatal. These tumors show similar histological and radiological features to primitive neuroectodermal tumor, medulloblastoma and choroid plexus carcinoma, but present
Granular cell tumors of the neurohypophysis are rare tumors with a WHO grade of I. Symptomatic tumors are even more rare. In this case, we present a 50-year-old patient with a sellar and suprasellar granular cell tumor of the neurohypophysis, who reported headaches, blurred vision and unsteady gait.
Pituitary carcinomas are rare primary adenohypophyseal tumors with cerebrospinal or extracranial metastasis. The present case, the first report of the disease in Korea, involved a 36-yr-old woman who presented with a 3-week history of headache. Brain magnetic resonance imaging revealed a 2.5-cm
A man visited the Out Patient Department of the hospital for Tropical Diseases in February 2004 with low grade fever and severe headache for a week. He had the history of diving in a natural pond 2-3 days before the onset of the disease. A thick bloody mucous was observed from the nasal discharge.
A total of 14 patients (8 males and 6 females) with nonfunctional pituitary adenomas were diagnosed and underwent surgical intervention at the Kaohsiung Medical College Hospital between 1986 and 1991. Their ages ranged from 20 to 68 years with an average of 49.7 years. Eight adenomas were composed
A 29-year-old female who had undergone resection of an abdominal paraaortic pheochromocytoma weighing 33 g at the age of 20 had had severe headaches, hypertension and hyperhidrosis 3 years prior to the surgery. Postoperatively, her symptoms completely disappeared and urinary catecholamines were
OBJECTIVE
Papillary meningioma is a rare meningeal tumour. To date only a few cases have been reported and their immunohistochemical features have not been fully documented.
RESULTS
A 49-year-old woman presented with a 2-month history of headaches and memory disturbance. CT and MRI imaging showed an
Meningiomas are tumors that originate from the arachnoid cell and the majority are benign and grade I tumors according to World Health Organization. Chordoid meningioma is an uncommon variant of meningioma and corresponds to grade II tumor in the World Health Organization Classification of Tumors of
We first report a rare case of metastasis from gastric hepatoid adenocarcinoma (HAC) to cerebral parenchyma, in a 50-year-old Chinese patient. He complained of a one-month history of a paroxysm of headache in the left temple and pars parietalis accompanied with binocular caligation caligo,
Cerebellar liponeurocytoma is a rare tumor of the central nervous system which shows neuronal and variable astrocytic differentiation, along with foci of lipomatous differentiation. It is usually located in the cerebellum, and may be mistaken for medulloblastoma with lipidized cells or lipomatous