Category: Dermatology


A 7-year-old boy is taken by his parents to see a dermatologist. They have noticed nodules on his face and are concerned. The dermatologist tells them that their child has adenoma sebaceum. Adenoma sebaceum of the face is especially common with which of the following diseases?

a. Neurofibromatosis

b. Sturge-Weber syndrome

c. Tuberous sclerosis

d. Ataxia telangiectasia

e. Fragile X syndrome

the answer is below…

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A 2-year-old participant in a day-care center is the third child over a several-week period to develop fever, nausea and vomiting, jaundice, and dark urine. As the physician consultant to the day-care center, you develop a fact sheet for other families, explaining which of the following about the virus likely to be the etiology of these problems?

a. It has a long incubation period (50 to 80 days)

b. It causes clinical symptoms to develop after a prolonged viremic stage

c. It causes disease that usually is more severe in adults than children

d. It is spread by parenteral route

e. It causes elevations of liver function studies and serum bilirubin levels for 6 months or more

the answer is below…

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A patient presents to the emergency center with a 6-h history of fever to 38.9°C (102°F). Her mother reports that the patient appeared to be feeling poorly, that she had been eating less than normal, and that she vomited once. About 2 h prior to arrival at the emergency room, the mother states that she noted a few purple spots scattered about the body on the patient, especially on the buttocks and legs. On the 30-min ride to the emergency room, the purple areas spread rapidly and became coalesced in areas, and the patient is now obtunded. Which of the following is the most likely diagnosis?

a. Henoch-Schönlein Purpura

b. Toxic shock syndrome caused by Staphylococcus aureus

c. Measles

d. Rocky Mountain spotted fever

e. Meningococcemia

the answer is below…

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A 10-year-old boy from the Connecticut coast is seen because of discomfort in his right knee. He had a large, annular, erythematous lesion on his back that disappeared 4 weeks prior to the present visit. His mother recalls pulling a small tick off his back. Which of the following is a correct statement about this child’s likely illness?

a. The tick was probably a Dermacentor andersoni

b. The disease is caused by a rickettsial agent that is transmitted by the bite of a tick

c. In addition to skin and joint involvement, CNS and cardiac abnormalities may be present

d. Therapy with antibiotics has little effect on the resolution of symptoms

e. The pathognomonic skin lesion is required for diagnosis

the answer is below…

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