is a rare, benign skin lesion that was first described in 1944.
Trichoepithelioma should clinically be differentiated from basal cell carcinoma, trichilemmoma, trichofolliculoma
, syringoma and colloid milium.
Histopathological differential diagnoses of NC include: trichofolliculoma
, dilated pore of Winer, pilar sheath acanthoma, and folliculocystic and collagen comedo hamartoma .
The hair follicle tumors are comprised of trichoepithelioma, trichofolliculoma
(sebaceous), pilomatricoma, and proliferating trichilemmal cyst (Figure 2).
(9) Differential diagnosis between trichoepithelioma (TE), trichoblastoma, trichofolliculoma
, trichoadenoma, and BCC may be very difficult for the clinician and the pathologist.
The hair follicle tumors are comprised of trichofolliculoma
(sebaceous), pilomatricoma, and dilated pore of Winer (Figures 2-5).
Cutaneous horn hyperkeratosis trichofolliculoma
hamartoma hair follicle.
.--To date, vulvar trichofolliculoma
in the literature is limited to a single series citing 3 cases.
Benign appendageal/adenexal tumor (Hidradenoma papilliferum, Trichoepithelioma, Trichofolliculoma
, Eccrine dermal cylindroma & Pilomatrixoma) showed predilection for females, according to Abanti sinha et al (2011) females (65.21%) outnumbered males (34.78%) in their study population.
The benign tumors are: Trichofolliculoma
, Pilar sheath acanthoma, Fibrofolliculoma, Trichodiscoma, Trichoepithelioma, Trichoblastoma, Trichoadenoma, Pilomartricoma, Trichilemmoma, Trichilemmal horn and Proliferating trichilemmal cyst.
are benign tumors that clinically present as small papules, usually on the face of an adult.