Presentation
History
Patients typically present with a single, flesh-colored or whitish nodule or papule of varying duration, typically on the face (most frequently around the nose).
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Physical Examination
Classic trichofolliculomas have a central pore or black dot, possibly draining a sebaceouslike material. A tuft of white hair may be present emerging from the central pore.
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Causes
Usually, these tumors develop spontaneously. Rarely, a prior history of trauma at the tumor site is obtained.
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Media Gallery
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Low-power view of trichofolliculoma with a primary follicle opening onto the skin surface.
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Edge of the primary follicle with associated secondary and tertiary budding follicular structures.
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Higher magnification of budding follicular structures.
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Low-power view of a section of trichofolliculoma demonstrating budding follicular structures and associated stroma.
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Higher magnification of budding follicular structures and associated stroma.
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Low-power view of sebaceous trichofolliculoma demonstrating dilated, primary follicle; budding follicular structures; and numerous associated sebaceous lobules.
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Higher magnification of central primary follicle and associated sebaceous lobules.
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Clinical appearance of trichofolliculoma.
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