Most common oral precancerous lesion? {Ans: leukoplakia}Common sign associated with parkinsons? {Ans: pill rolling tremor}chalky white mark on TM {Ans: scarring}Tinea capitis appearance {Ans: scaly, patchy, crusty, hair breakage}Causes associated with exacerbation of psoriasis {Ans: stress, anxiety, illness -strep pharyngitis and some drugs (beta blockers, antimalarial, steroids, aspirin)}Predisposing factors of hyperthyroidism {Ans: Fam hx of hyperthy or other autoimmune, RA, vitiligo, pernicious anemia, trisomy 21, pregnancy/mothers with grave's, puberty, myasthenia gravis, addison, amiodarone, Iodine contrast dye, stress, sex steroids, DM I, SLE, smoking, neck radiation}