category 1
erythema multiform def
A patient presents with a symmetrical red papular rash with many target lesions.
In a patient suspected of having seborrheic dermatitis, the most common site of involvement would be the
The most common site of involvement of seborrheic dermatitis is the scalp. Other common sites include the eyebrows, eyelids, nasolabial fold, and ears
A patient presents with loss of pigmentation on the back of hands, face, and body folds due to the absence of epidermal melanocytes. There has been improvement with PUVA treatment. Which of the following is the most likely diagnosis?
vitiligo
A person with atopic dermatitis should be advised to
avoid cutaneous irritants
inability to tan is a risk factor for this type of cancer
malignant melanoma
Which of the following is the most common type of skin cancer?
basal cell
Acanthosis nigricans is associated with patients who have
hyperinsulinemia
A mother brings in her 2 year-old child stating that the child has had a 3-day history of a nonproductive cough, thick copious rhinorrhea, conjunctivitis, and a fever to 103 degrees. Physical examination reveals a well-hydrated child, with numerous 1-2 mm white papules on both buccal mucosa, normal heart and breath sounds. This presentation is most consistent with early
Rubeola (measles) is characterized by cough, coryza, and conjunctivitis, along with a fever as a prodrome. Koplik spots appear prior to the onset of the typical erythematous, maculopapular rash and are pathognomonic for rubeola.
Which of the following interventions is the treatment of choice for actinic keratosis?
cryotherapy
_______most commonly presents with scaling plaques and papules on the scalp, elbows, forearms, lumbosacral regions, knees, hands, and feet.
Psoriasis
superficial infection of a hair follicle with small papules and surrounding erythema?
what is folliculitis
_________ is generally asymptomatic, presenting with red papules on the face that coalesce to give a "slapped cheek" appearance.
Erythema infectiosum
A 56 year-old, right hand dominant, carpenter presents to your clinic complaining of a prolonged bruise under his left thumbnail. He states that he first noticed it one year ago. Physical examination reveals a nontender left thumb with a 6 mm macular lesion located under the distal nail bed. It is mixed dark brown and black in color, with irregular borders. The most likely diagnosis is
melanoma-Acral lentiginous melanoma may occur on the palm, sole, nail bed, or mucus membrane. This lesion is suspicious for a melanoma due to its irregular borders, being variegated in color, and its size. A biopsy is required and will ensure the diagnosis.
elevated solid lesion < .5 cm
A patient presents with profound itching. Examination reveals short, reddish lesions on the wrists, elbows, and finger webs. Papules are also noted in these areas. There appears to be burrow marks emanating proximal to the finger webs. Which of the following is the most likely diagnosis?
scabies
What is a macule?
flat lesion < 1 cm, without elevation or depression
A patient with a past medical history of allergic rhinitis and asthma presents with chronic pruritic inflammatory lesions of the flexor surfaces, wrists, and dorsal areas of the feet. The lesions are excoriated and lichenified with crusted patches and plaques. Which of the following is the most likely diagnosis?
atopic dermatitis
A 35 year-old female who recently returned from a backpacking trip complains of fatigue, malaise, fever, chills, and arthralgias. Physical examination reveals a 6 cm annular lesion with a red border and a clear center on her mid-back. Which of the following laboratory tests would support your diagnosis?
serologic antibody testing-Most people with Lyme Disease will have a positive serologic test after the first few weeks of infection and this would support the diagnosis.
elevated, fluid-filled lesion, usually > .5 cm
what is a bulla
A 60 year-old male presents with a slowly developing facial lesion first noticed 4-5 months ago. He describes it as non-painful and non-pruritic but notes it to be extremely scaly. He denies a history of similar lesions or dermatologic disease. Examination reveals a one centimeter, firm nodule at the right temple with heavy keratinization. There is no fluctuance or skin discoloration. Which of the following is the most likely diagnosis?
squamos cell cancer
the diagnosis of a patient with hyperpigmented light and dark brown poorly circumscribed patches diagnosis would be? how would you treat this?
melasma, hydroquinone is gold standard
Erythema Multiforme is caused by....
herpes simplex virus
A 26 year-old male complains of intense itching, especially at night and after hot showers, for the past 4 days. On physical examination he has a few red papules and areas of excoriation on his volar wrists, between his fingers, and around his waist. Proper diagnosis should include which of the following tests?
skin scraping microscopy
A 13 year-old child presents with a lesion on his right forearm that is occasionally pruritic. On examination, a 2 cm ring of erythema with a scaly border and central clearing is noted. A suspected diagnosis is confirmed by what test
Ring-shaped lesions with scaly borders and central clearing are most likely caused by fungal infection. Microscopic examination of scrapings reveals hyphae on KOH prep.
The bite from this is associated with fever, lacrimation, rhinorrhea, bradycardia, hypertension, and tachyarrhythmias? (systemic symptoms)
black widow