Noneczematous Contact Dermatitis

Table 10

Differential diagnosis between dyshidrosiform ACD and pompholyx.

Characteristics	Dyshidrosiform ACD	Pompholyx
Palms/soles	+++	+++
Hands/feet dorsum	+++	+
Erythema	+++	+
Hemorrhagic vesicles	+	−
Bullae	+±	+/+++
ACD primary locus	Present	Absent
Spongiosis	+++	+
Exocytosis	+++	+
Vesicles	Minute	Large from coalescing