“…Other reported and less frequent associations include lichen planus and lichen sclerosus [ 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 ], linear IgA bullous dermatosis [ 139 , 140 ], prurigo nodularis [ 141 ], pityriasis rubra pilaris and erythroderma [ 142 ], erythema elevatum diutinum [ 143 , 144 , 145 ], necrolytic migratory erythema [ 146 , 147 , 148 ], pityriasis lichenoides [ 140 ], erythema nodosum [ 140 , 149 , 150 , 151 ], porphyria [ 152 , 153 ], cutaneous amyloidosis [ 154 ], generalized acquired cutis laxa [ 155 , 156 ], acquired hypertrichosis lanuginosa [ 157 ], ichthyosis [ 158 ], partial lipodystrophy [ 159 ], transverse leukonychia [ 160 ], atypical mole syndrome, and congenital giant nevus [ 161 ]. Finally, we want to mention that earlier studies reported an increased risk of malignant melanoma in patients with CD, but a recent study refuted this relation [ 162 ].…”