Symptoms of brain tumors

Symptoms of brain tumors may depend on two factors: tumor size (volume) and tumor location. The time point of symptom onset in the course of disease correlates in many cases with the nature of the tumor ("benign", i.e. slow-growing/late symptom onset, or malignant, fast growing/early symptom onset).

Many low-grade (benign) tumors can remain asymptomatic (symptom-free) for years and they may accidentally be discovered by imaging exams for unrelated reasons (such as a minor trauma).

New onset of epilepsy is a frequent reason for seeking medical attention in brain tumor cases.

Large tumors or tumors with extensive perifocal swelling edema inevitably lead to elevated intracranial pressure (intracranial hypertension), which translates clinically into headaches, vomiting (sometimes without nausea), altered state of consciousness (somnolence, coma), dilatation of the pupil on the side of the lesion (anisocoria), papilledema (prominent optic disc at the funduscopic examination). However, even small tumors obstructing the passage of cerebrospinal fluid (CSF) may cause early signs of increased intracranial pressure. Increased intracranial pressure may result in herniation (i.e. displacement) of certain parts of the brain, such as the cerebellar tonsils or the temporal uncus, resulting in lethal brainstem compression. In young children, elevated intracranial pressure may cause an increase in the diameter of the skull and bulging of the fontanelles.

Depending on the tumor location and the damage it may have caused to surrounding brain structures, either through compression or infiltration, any type of focal neurologic symptoms may occur, such as cognitive and behavioral impairment, personality changes, hemiparesis, hypesthesia, aphasia, ataxia, visual field impairment, facial paralysis, double vision, tremor etc. These symptoms are not specific for brain tumors - they may be caused by a large variety of neurologic conditions (e.g. stroke, traumatic brain injury). What counts, however, is the location of the lesion and the functional systems (e.g. motor, sensory, visual, etc.) it affects.

Breadnut

The breadnut (Brosimum alicastrum) is a Brosimum tree species under the Moraceae family of flowering plants, whose other genera include fig and mulberries. Other common names for the plant include the Maya nut and ramón (particularly in Spanish-speaking regions). The plant is also known by a range of names in indigenous Mesoamerican and other languages, including but not limited to: ojoche, ojite, ojushte, ujushte, ujuxte, capomo, mojo, ox, iximche and masica.

The breadnut fruit disperses on the ground in March and April and has a large seed covered by a thin, citrus-flavored orange-colored skin favored by a number of forest creatures. More importantly, the large seed which is enveloped by the tasty skin is an edible ‘nut’ that can be leached and ground into a meal for porridge or flatbread. Ramon is nutritious and has value as a food source, and formed a part of the diet of the pre-Columbian Maya of the lowlands region in Mesoamerica, although to what extent has been a matter of some debate among Maya historians and archaeologists.

It was planted by the Maya civilization two thousand years ago and it has been claimed to have been a staple food in the Maya diet, although other research has downplayed its significance. In the modern era it has been neglected as a source of nutrition and has often been characterised as a famine food

Mobile Telephone System

The Mobile Telephone System (MTS) was one of the earliest mobile telephone standards. It was operator assisted both directions, meaning that if you were called from a land line the call would be routed to a mobile operator, who would route it to your phone. Similarly, to make an outbound call you had to go through the mobile operator, who would ask you for your mobile number and the number you were calling, and then would place the call.

This service originated with the Bell System, and was first used in St. Louis on June 17, 1946. The original equipment weighed 80 pounds, and there were initially only 3 channels for all the users in the metropolitan area, later more licenses were added bringing the total to 32 channels across 3 bands (See IMTS frequencies). This service was used at least into the 1980s in large portions of North America.

This protocol was replaced by Improved Mobile Telephone Service (IMTS).