tion, and the lipidized DF, with a homogeneous yellowish area.3,6 Although initially considered rare, sebaceous structures are identified in more than 15% of DFs,4,5,7 even in multiple forms.8 This finding is typical in lesions localized in the anatomical area of the shoulder (shoulder, proximal region of the arm, upper back and deltoid region), being observed in more than 40% of these cases, p...

localization of keratins and involucdn in solar keratosis and Bowen's disease. Am J Dermatopathol 1995; 17: 151-157. 4. Mai K.T. Alhalouly T. Landry D, Stinson WA. Perkins DG, Yazdi HM. Pagetoid variant of actinic keratosis with or with -out squamous cell carcinoma of sun-exposed skin: a lesion simulating extramammary Paget's disease. Histopathology 2002; 41:331-336. 5. Ansai S. Mihara I. Sebac...

adnexal tumors (ats) are primary skin tumors with benign or rarely, malignant behavior. they have been classified based on differentiation towards hair follicle, sebaceous, apocrine or eccrine gland. few large-scale studies have focused on ats. to determine the prevalence of ats and to assess clinical and histopathological trend of ats. a retrospective descriptive study of all ats diagnosed in ...

Vellus hair follicle Accessory auricle Trichofolliculoma Hair nevus Abstract We present a case of hair follicle nevus, a rare hamartoma composed of vellus hair follicles. Hair follicle nevus should be differentiated from accessory auricle, trichofolliculoma and hair nevus. Masahiro Tani, MD, Department of Dermatology, Kobe University School of Medicine, 5 Kusunoki-cho, 7 chome, Chuo-ku, Kobe 65...

Nevus sebaceous (NS) is a type of classical nevus or congenital malformation that is often present at birth and commonly involves the scalp or face. The lesion usually presents as a linear, yellow, hairless, and verrucous plaque. It has been well-established that several benign and malignant tumors can develop from the NS; however, there have been no reports about ectopic fat cells in the dermi...

Syringocystadenoma papilliferum (SP) commonly arises in conjunction with nevus sebaceous. Other less common lesions reported with SP include apocrine adenoma, condyloma acuminatum, hidradenoma papilliferum associated with hidrocystoma, poroma folliculare, and a single case ofverrucous carcinoma. We report the second case of verrucous carcinoma in conjunction with SP.

We report unilateral megalencephaly in a 14-year-old girl with linear sebaceous nevus syndrome. A review of the radiologic findings in this case and in previously reported cases suggests that the seizures and developmental delay in this neurocutaneous syndrome are related to the migration anomaly of unilateral megalencephaly.