case_images: PMC3806685_01
case_images: Proliferating trichilemmal tumor on the nose of a man.
case_images: cde-0005-0248-g01.jpg
case_images: PMC3806685_01_cde-0005-0248-g01.jpg
case_images: F1
case_images: A 70-year-old white man, born in Buenos Aires, Argentina, visited for a consultation about a localized swelling on the tip of his nose and an external orifice with serosanguineous discharge (fig. 1, fig. 2).
case_images: Wall of the intradermal cystic structure, covered by stratified pavimentary epithelium, partly with and partly without the formation of a granular layer, and with larger cells (HE, x40).
case_images: cde-0005-0248-g03.jpg
case_images: PMC3806685_01_cde-0005-0248-g03.jpg
case_images: F3
case_images: This histopathological picture was interpreted as suggestive of adnexal neoplasia with pilar differentiation and a possible proliferating epidermoid cyst (fig. 3, fig. 4, fig. 5).
case_images: Detail of the solid portion of the neoplasia, composed of large cells with eosinophilic cytoplasma, prominent nucleoli, and atypical cells to a moderate degree (HE, x400).
case_images: cde-0005-0248-g05.jpg
case_images: PMC3806685_01_cde-0005-0248-g05.jpg
case_images: F5
case_images: This histopathological picture was interpreted as suggestive of adnexal neoplasia with pilar differentiation and a possible proliferating epidermoid cyst (fig. 3, fig. 4, fig. 5).
case_images: Aspect immediately after total surgical removal.
case_images: cde-0005-0248-g06.jpg
case_images: PMC3806685_01_cde-0005-0248-g06.jpg
case_images: F6
case_images: The lesion had already relapsed 45 days later, and another surgery was performed (fig. 6).
case_images: Four months after the removal of the tumor.
case_images: cde-0005-0248-g07.jpg
case_images: PMC3806685_01_cde-0005-0248-g07.jpg
case_images: F7
case_images: The patient has been monitored since then without a recurrence of the lesion (fig. 7).