Infectious Disorders
What virus causes oral lesions above the waist and is known to remain dormant in the trigeminal nerve?
Herpes Simplex Virus Type 1 (HSV-1)
What inflammatory disorder is caused by overactive oil glands and leads to dandruff or cradle cap?
Seborrheic Dermatitis
What condition is linked to Chromosome 11 and often occurs with asthma or allergic rhinitis?
Atopic Dermatitis
What parasite causes scabies by burrowing and laying eggs in the stratum corneum?
Sarcoptes scabiei
What autoimmune disease leads to thickened, hardened skin due to collagen deposition?
Scleroderma
Which virus causes shingles and results from reactivation of the chickenpox virus?
Herpes Zoster Virus
What chronic autoimmune disorder causes silvery scales and plaques on elbows, knees, and scalp?
Psoriasis
What type of dermatitis results from direct exposure to an irritating substance?
Contact Dermatitis
What disease results from a tick bite that transmits Rickettsia rickettsii?
Rocky Mountain Spotted Fever
What type of light exposure causes photosensitivity and sunburn?
Ultraviolet (UV) light
Which bacterial infection causes vesicles and yellowish crusts, commonly seen in children?
Impetigo
What common skin disorder involves inflamed lesions due to oil and cell blockage in follicles?
Acne Vulgaris
What allergic reaction occurs from exposure to poison ivy, oak, or sumac?
Rhus Dermatitis
What condition occurs after a tick bite carrying Borrelia burgdorferi?
Lyme Disease
What skin disorder occurs from prolonged pressure on bony prominences?
Pressure ulcer
What fungus commonly causes tinea infections such as tinea pedis (athlete’s foot)?
Trichophyton (also Microsporum or Epidermophyton)
Psoriasis is characterized by alternating periods of __________ and __________.
Exacerbation and remission
What are common manifestations of allergic skin reactions?
Itching, erythema, and vesicle
What parasite causes pediculosis (lice infestation)?
Pediculus humanus (louse)
What is the most common type of benign skin tumor?
Basal cell carcinoma
What organism causes yeast infections of the mouth and skin, especially in immunocompromised patients?
Candida albicans
What is the typical diagnostic method for psoriasis?
Skin biopsy
What is the main diagnostic test for allergic contact dermatitis?
Patch Test
What insect causes itchy oval wheals due to feeding on human blood while sleeping?
Bedbugs (Cimex lectularius)
What malignant tumor is associated with immunodeficiency and presents with purple lesions?
Kaposi’s sarcoma