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An Asymptomatic 2 * 3 Cm Mass in the Lateral

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An asymptomatic 2 * 3 cm mass in the lateral neck of a 25-year-old man was biopsied. Microscopically, it was a cyst surrounded by lymphoid tissue. The diagnosis would be:


Definitions:

Resting Potential

The state of the neuron when not firing a neural impulse.

Neurotransmitter

Chemical substances that transmit nerve impulses across a synapse from one neuron to another.

Synaptic Vesicles

Membrane-bound sacs within the neuron that store neurotransmitters, which are chemicals involved in transmitting messages across the synaptic gap.

Resting Potential

The electrical charge of a neuron when it is not active or transmitting an impulse, representing the difference in electric potential across the neuron's membrane.

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