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What does a vocal cord (singer's nodule) usually look like microscopically? Squamous mucosa overlying myxoid stroma In what 2 clinical settings are squamous papillomas found in the larynx? Juvenile laryngeal papillomatosis and adult laryngeal papillomatosis Which cytoplasmic structures cause the granules in granular cell tumor? Lysosomes Which 3 stains stain the spindle cell part of spindle cell ca? CK, EMA, p63 In basaloid SCC, what does the stroma often have? How do you differentiate it from adenoid cystic? Hyalinized BM-like material in and around tumor nests; p63 stains only around periphery of the nests in adenoid cystic and in basaloid SCC, it stains diffusely throughout the tumor What stains are helpful in adenosquamous ca? Mucin stains to show mucin