Direct immunofluorescence is of no value in the diagnosis of:
- A. Neonatal LE
- B. Lichen planus
- C. Mixed connective tissue disease
- D. SLE
- E. Erythema multiforme
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Which cytokeratin would you expect to be preferentially expressed in the keratinocytes of a psoriatic plaque:
- A. K1
- B. K5
- C. K12
- D. K15
- E. K16
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Melanocytes are derived from:
- A. Bone marrow
- B. Neural crest
- C. Mesodermal precursors
- D. Endodermal precursors
- E. Yolk sac derived
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- Which of the following amino acids are typically found in elastic fibers?
- A. Desmosine
- B. Isoleucine
- C. Proline
- D. Hydroxyproline
- E. Glycine
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Glomus cells are primarily found:
- A. on hands/feet
- B. on the trunk
- C. on the lateral thighs
- D. on the genital skin
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