Dermatopathology, Set 2

For each of the following patients, select the most likely pathologic finding:

1. A 26-year-old woman has dozens of 1 to 3 cm pigmented macules and raised plaques over her body. A brother, uncle, and 2 cousins are similarly affected:

2. A 65-year-old man has several raised, coin-like, light brown 1 to 2 cm lesions over his face and chest that have been slowly enlarging for years:

3. A 29-year-old woman has a chronic cough and a chest radiograph reveals bilateral upper lobe cavitary lesions. A tuberculin skin test is positive with induration 13 mm in diameter. She develops several 2 to 6 cm tender, rounded, slightly erythematous nodules on her lower extremities:

4. A 51-year-old woman has loss of hearing on the left, and an MRI scan reveals a 4 cm mass at the cerebellopontine angle:

5. A 19-year-old man has an irregular 1 x 3 cm area of nodular scarring that enlarges for several months following a laceration to his chest:

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A. Keratoacanthoma B. Basal cell carcinoma C. Scabies D. Dysplastic nevus E. Cold sore
F. Verruca vulgaris G. Acrochordon H. Erythema chronicum migrans I. Keloid J. Actinic keratosis
K. Kaposi's sarcoma L. Epidermal inclusion cyst M. Melanoma N. Nevus O. Shingles
P. Erythema nodosum Q. Seborrheic keratosis R. Vitiligo S. Squamous cell carcinoma T. Neurofibromatosis