According to the literature, palmoplantar lesions in lichen planus (LP) are uncommon, and do not usually have the classically described clinical morphology. The aim of this study was to evaluate the prevalence of palmoplantar lesions in LP and to describe the characteristic clinicopathological appearances of LP affecting palms and soles. Palmoplantar LP with accompanying skin involvement accounted for 26% of our cases. The presence of very pruriginous erythematous scaly and/or hyperkeratotic plaques, with well-defined edges, located on the internal plantar arch, without involvement of the fingertips, and which usually disappear in a few months, is characteristic of palmoplantar LP. Histopathological examination shows the characteristic features of LP.

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221References 1 Velanovich V. Ectopic breast tissue, supernumerary breasts, and supernumerary nipples. South Med J 1995; 88: 903-906. 2 Evans DM, Guyton DP. Carcinoma of the axillary breast. J Surg Oncol 1995; 59: 190-195. 3 Routiot T, Marchal C, Verhaeghe JL et al. Breast carcinoma located in ectopic breast tissue: a case report and review of the literature. Oncol Rep 1998; 5: 413-417. 4 Pfeifer JD, Barr RJ, Wick MR. Ectopic breast tissue and breast-like sweat gland metaplasias: an overlapping spectrum of lesions. J Cutan Pathol 1999; 26: 190-196. 5 Wallace ML, Longacre TA, Smoller BR. Estrogen and progesterone receptors and anti-gross cystic disease fluid protein 15 (BRST-2) fail to distinguish metastatic breast carcinoma from eccrine neoplasms. Mod Pathol 1995; 8: 897-901. 6 Lukowsky A, Muche JM, Sterry W et al. Detection of expanded T cell clones in skin biopsy samples of patients with lichen sclerosus et atrophicus by T-cell receptor-gamma polymerase chain reaction assays. J Invest Dermatol 2000; 115: 254-259. 7 Kao GF, Graham JH, Helwig EB. Paget's disease of the ectopic breast with an underlying intraductal carcinoma: report of a case. J Cutan Pathol 1986; 13: 59-66. 8 Roorda AK, Hansen JP, Rider JA et al. Ectopic breast cancer: special treatment considerations in the postmenopausal patient. Breast J 2002; 8: 286-289. 9 Busam KJ, Tan LK, Granter SR et al. Epidermal growth factor, estrogen, and progesterone receptor expression in primary sweat gland carcinomas and primary and metastatic mammary carcinomas. Mod Pathol 1999; 12: 786-793. 10 Kaptain S, Tan LK, Chen B. Her-2/neu and breast cancer. Diagn Mol Pathol 2001; 10: 139-152. 11 Wick MR, Ockner DM, Mills SE et al. Homologous carcinomas of the breasts, skin, and salivary glands. A histologic and immunohistochemical comparison of ductal mammary carcinoma, ductal sweat gland carcinoma, and salivary duct carcinoma.whereas other parts of the tattoo remained unaffected. This indicates that viral inoculation probably took place during the second session, although the transmission of poxvirus could have been either via fomites, or contamination of the ink used for tattooing.

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