Fig. 52.
Moist Papules. (After Miller.)
How would you distinguish the small-papular syphiloderm from keratosis pilaris, psoriasis punctata, papular eczema, and lichen ruber?
The distribution and extent of the eruption, the color, the grouping, with usually the presence of pustules and large papules and other concomitant symptoms of syphilis, are points of difference. Pustules never occur in the several diseases named, except in eczema.
Describe the large-papular eruption of syphilis.
The large-papular syphiloderm (or lenticular syphiloderm) is a common form of cutaneous syphilis, appearing usually in the first six or eight months, and consists of a more or less generalized eruption of pea- to dime-sized or larger, flat, rounded or oval, firmly-seated,
Small-papular Syphiloderm.