Various types of diseases can involve the nasal vestibule. Diagnosis and treatment of a nasal vestibular mass is often challenging due to the anatomical features of the nasal vestibule. Here, we present four cases with nasal vestibular masses. Two cases were diagnosed as squamous papillomas. The others were a trichofolliculoma and pseudoepitheliomatous hyperplasia with hyperkeratosis. Our aim w...

a case of an interesting previously unreported mixed adnexal tumor of the scalp of a 38 year old man is presented, which was composed of randomly dispersed areas of trichofolliculoma, trichoepithelioma, and pilomatricoma concomitantly. while these lesions are classified under adnexal tumors with differentiation towards hair follicle structures, controversy is present concerning the exact origin...

Benign eyelid tumours derived from hair follicles are rare and frequently misdiagnosed as basal-cell carcinoma when evaluation is based on clinical evidence alone. They include trichoepithelioma, trichofolliculoma, trichilemmoma, and pilomatrixoma. We reviewed 117 such tumours received in the Department of Pathology, Institute of Ophthalmology, London, in the last 30 years, a number which compa...

Actas Dermosifiliogr. 2009;100:817-32 824 6. Pippione M, Aloi F, Depaoli MA. Hair-follicle nevus. Am J Dermatopathol. 1984;6:245-7. 7. Hyman AB, Clayman SJ. Hair-follicle nevus; report of a case and a review of the literature concerning this lesion and some related conditions. AMA Arch Derm. 1957;75: 678-84. 8. Ackerman AB, De Viragh PA, Chongchitnant N. Hamartomas. In: Febiger LA, ed. Neoplasm...