"My Leg Is on Fire":

"My Leg is on Fire": A Case Study on Spinal and Peripheral Nerve Anatomy

Sarah Mitchell is a 68-year-old female who is normally healthy. However, about five days ago she began to feel very fatigued and started to experience a burning and tingling sensation on her right thigh.

You ask to see the area and upon visual inspection you notice 3–4 small, red, swollen areas with vesicles on the posterior aspect of her right thigh. She describes the pain to you, saying “it feels like the back of my leg is on fire and it hurts so bad.” She denies being exposed to any excessive heat sources, any changes in her diet, and any changes in the type of body soap, lotion, or laundry detergent she is using. All other physical findings are within normal limits, but her oral temperature is 100.6˚F. She complains about being under a lot of stress for the past three months because she has been helping take care of her husband, who is in the end stages of Alzheimer’s disease. She has no known drug allergies, is a non-smoker, and attends a water aerobics class twice a week. You suspect she may be suffering from a particular viral infection, so you ask if she had chicken pox as a child. Sarah confirms that she had chicken pox and measles during childhood. Her answer confirms your suspicions that she is likely suffering from shingles (herpes zoster) due to varicella-zoster virus infection.

Short answer questions

1. Define the following terms, used in the case and also in associated questions.

a. Paresthesia- the sensation of tingling, tickling, burning, of a person’s skin in the hands, legs, arms. and feet, but can occur in other parts of the body

b. skin vesicle- small circumscribed elevation of the skin containing fluid

c. dorsal-relating to the upper side or back of animal

d. ventral-relating to the underside of an animal

e. dormant-the slowing down of normal physical function for a period of time

2. The list below classifies sensory receptors by the...