Multiple, flat-topped papules on the dorsum of hands and feet, which is a genetic disorder, not an infection.
A pre-malignant, rough, scaly patch on sun-exposed skin, which lacks the verrucous surface and thrombosed capillaries of a wart.
A pink, nodular lesion that can be verrucous, but is distinguished by rapid growth or ulceration and must be excluded by biopsy.
Multiple, hard, yellowish, punctate keratoses on the palms and soles, arising from chronic arsenic exposure.
Can be papular but is distinguished by its pearly, translucent quality and surface telangiectasias.
A painful, focal hyperkeratosis over a bony prominence, which has a hard central core and does not disrupt skin lines like a wart.
A firm, dermal nodule that dimples with lateral pressure, a feature not seen in warts.
Thick, extremely pruritic, violaceous plaques, most often on the shins, a distinct color and symptomatology.
A rapidly growing nodule with a central keratin-filled crater, often considered a variant of SCC.
Can cause flat-topped (planar) papules, but these are typically violaceous and polygonal.
Smooth, dome-shaped papules with central umbilication, caused by a poxvirus, not HPV.
A benign sweat gland tumor, often a solitary pink or red papule on the sole of the foot.
An inherited condition causing multiple, tiny, 'rain-drop' like keratoses on the palms and soles.
Characterized by small keratotic papules, each surrounded by a distinct, thin, raised border known as a cornoid lamella.
Has a greasy, warty, 'stuck-on' appearance and can be crumbly, unlike the firm texture of a wart.
A benign melanocytic nevus, typically a pink or red, smooth, dome-shaped papule in a child.
Can be verrucous but is distinguished by its firm, indurated base and potential for ulceration.
A benign hair follicle tumor, often a smooth, skin-colored papule on the face, associated with Cowden syndrome if multiple.
