ACANTHOSIS NIGRANS
\ɐkanθˈə͡ʊsɪs nˈɪɡɹənz], \ɐkanθˈəʊsɪs nˈɪɡɹənz], \ɐ_k_a_n_θ_ˈəʊ_s_ɪ_s n_ˈɪ_ɡ_ɹ_ə_n_z]\
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A growth consisting of pigmented, warty, papillomatous nodules, showing a hyperplasia of the papillae and epidermis, dilatation of the blood and lymph vessels, and an increase of pigment in the palisade cells, with imperfect "cell-nest" formation. [Gr.]
By Smith Ely Jelliffe
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.