This report describes an unusual morphology of annulate lamellae (AL) in the hepatocytes of Torpedo marmorata Risso. These Als and fragments are detected amidst the main glycogen and lipid deposits. AL cisterns are circumscribed by parts of the smooth endoplasmic reticulum. Based on the finding of these unusual annular ALs, accompanied by other subcellular lesions such as a number of membranous...

Cranial computed tomography (CT) scans of 1,600 head trauma patients, 67 of which demonstrated evidence of brainstem injury, were reviewed. CT diagnosis of brainstem injury was based on direct and indirect evidence. Direct signs, which include focal hemorrhage, significant intraparenchymal contrast enhancement, hemorrhagic contusion, and edema of the brainstem, appear as areas of high density, ...

Seventy-eight positive contrast computed tomography (CT) cisternograms were reviewed to assess the normal anatomy of the brainstem and its surrounding cisterns. Normal brainstem and cisternal anatomy was found to be constant and symmetrical. The review included six patients with brainstem gliomas and five patients with extraaxial masses. In these patients CT cisternography accurately identified...

The increased density in the basal cisterns and the subarachnoid space on CT scans is a well-known characteristic of subarachnoid hemorrhage. Have been described diverse conditions that can emulate subarachnoid hemorrhage, such as purulent leptomeningitis, intrathecal contrast material and leak of high doses of intravenous contrast material to the subarachnoid space. We present the case of a ma...

Cysticercosis is an infection caused by the larval stage of the tapeworm Taenia solium. The parasite may infect the central nervous system, causing neurocysticercosis (NCC). The clinical manifestations depend on load, type, size, location, stage of development of the cysticerci, and the host's immune response against the parasite. The racemose variety occurs in the ventricles or basal cisterns ...

Accurate analysis of cerebrospinal fluid (CSF) provides a wide range of information about the neurological health of the patient. CSF can be withdrawn from either of two cisterns in dogs and cats using relatively safe techniques. Once CSF has been collected it must be analysed immediately and methodically. Evaluation should consist of macroscopic, quantitative and microscopic analyses. As part ...

MRI from a comatose patient with a massive acute subdural haematoma showed most of the features of transtentorial herniation described in the classic pathology literature. In addition to encroachment on the perimesencephalic cisterns, infarction in the anterior and posterior cerebral artery territories, ischaemic change in the lower diencephalon, and ventricular enlargement were visualised. Des...

Volume 95 No. 7 July 2012 a previously healthy 20 year-old male presented to the Rhode Island Hospital Emergency Department with 24 hours of worsening abdominal pain, vomiting, and fevers. On physical examination he appeared diaphoretic and febrile, with an oral temperature of 104.3°. The patient was noted to have tenderness to palpation in the epigastric region. Initial laboratory evaluation r...

Vasospasms occur in 30 % of patients after subarachnoid haemorrhage (SAH). The most severe spasms are in patients with Hunt and Hess IV and V, who have usually much blood in the basal cisterns. According to some reports, hypothermia could decrease the incidence and severity of vasospasms in these patients. We have analysed 15 patients (HH IV and V) after SAH from a ruptured intracranial aneurys...