Clinical examination revealed round annular plaques
with slightly elevated and well demarcated violaceous borders, composed of multiple coalescing papules and a pale center, symmetrically distributed on the dorsal aspects of the hands and feet, anterior part of the arms, forearms and shins and upper trunk (Figure 1).
It is characterized commonly by pink to violaceous aciform or annular plaques
on clinical examination.
Porokeratosis are a group of hereditary or acquired disorders characterized by annular plaques
with an atrophic centre and a hyperkeratotic peripheral ridge.
Spontaneous central resolution with areas of atrophy surrounded by a verrucous keratotic surface or an annular plaque
with a warty advancing border is seen.
A 60-year-old female with no significant past medical history presented with a 3-month history of asymptomatic, erythematous, firm, annular plaques
on her bilateral proximal upper extremities and dorsal hands.
Physical exam revealed multiple discrete mauve dermal papules and annular plaques
distributed primarily over her trunk and proximal lower extremities.
Physical examination revealed multiple erythematous, annular plaques
of varying sizes distributed on the upper chest, arms and trunk (Figure 1).
Physical examination was unremarkable except for multiple generalized red-brown annular plaques
involving the trunk and extremities (Figure 1(c)).
Morphologically, the lesions have crusted weeping erosions, vesicles, pustules, expanding annular plaques
with peripheral scaly borders and vegetating plaques with fissures (rhagades).
* Granuloma annulare produces slowly expanding annular plaques
that are not itchy and do not scale.
Dermatologic evaluation showed madarosis, thickening of the glabella, and 8 large annular plaques
. Light touch sensation was impaired, but all lesions were hypersensitive to trauma.