Both forms may coexist, and both may occur alone or with ordinary lesions of lichen sclerosis et atrophicus elsewhere on the body. The histologic features of all types of lichen sclerosus et atrophicus are, as should be expected, the same. Four of the patients had plaques of lichen sclerosus et atrophicus on the body in association with the genital lesions, and another showed typical isolated papules of lichen sclerosus et atrophicus on the shaft of the penis with lesions of balanitis xerotica obliterans on the glans and prepuce. In our opinion lichen sclerosus et atrophicus and balanitis xerotica obliterans are identical. Both types of genital involvement may occur alone or with lesions on the body.
All forms present the same histologic features.
Balanitis Xerotica Obliterans, Arch. F. Dermat u. Balanitis xerotica obliterans post operationem, ibid. Ueber einem Fall von Kraurosis penis bei gleichzeitigem Bestehen von Weissflecken am Skrotum, Dermat. Lichen Sclerosus et Atrophicus, Arch.