Answer to Medical Quiz

The answer is # 5:Black hairy tongue (lingua villosa nigra) may be associated with the presence of chromogenic organisms (e.g., C. albicans) and the use of certain medications (e.g., doxycycline and bismuth). The pathophysiology is thought to be due to proliferation of the filiform papillae of the tongue, which stain black with porphyrin-producing chromogenic bacteria or yeast.I take exception to