Hair follicle tumors of the skin

Mehregan, Amir H.

doi:10.1111/j.1600-0560.1985.tb01621.x

Cited by 21 publications

(13 citation statements)

References 56 publications

(36 reference statements)

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“…Histopathologically CCA and a psoriasis plaque share common features: acanthotic epidermis, regular psoriasiform appearance with suprapapillary thinning, dilatation and tortuosity of the papillary capillaries, polymorphous neutrophils infiltration of the epidermis. Large pale epidermal cells, preservation of adnexal elements, sharp borders and considerable spongiosis help to differentiate CCA from psoriasis 2,11 …”

Section: Discussionmentioning

confidence: 99%

Psoriasis‐like dermoscopic pattern of clear cell acanthoma

Bugatti¹,

Filosa²,

Broganelli

et al. 2003

Acad Dermatol Venereol

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Section: Discussionmentioning

confidence: 99%

Psoriasis‐like dermoscopic pattern of clear cell acanthoma

Bugatti¹,

Filosa²,

Broganelli

et al. 2003

Acad Dermatol Venereol

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“…Histologically, the growth is made up of massive proliferation of pilar sheath epithelium showing multiple central areas of trichilemmal keratinization and formation of homogeneous keratin cysts 4 . The tumor masses are surrounded by a layer of basaloid cells in which the tumor cell nuclei palisade and the cell membranes rest over an outer layer of PAS‐reactive basement membrane.…”

Section: Commentsmentioning

confidence: 99%

Malignant Proliferating Trichilemmal Tumors—Report of Three Cases

Mehregan

Lee

1987

The Journal of Dermatologic Surgery and Oncology

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We are reporting three patients with recent history of rapid enlargement of long standing nodular scalp lesions. Histologic sections revealed areas of relatively benign proliferation of pilar sheath epithelium and foci of trichilemmal keratinization characteristic of a proliferating trichilemmal cyst. There were also extensive areas of severe cellular dysplasia and surrounding dermal invasion indicating malignant transformation.

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“…6,7 Trichofolliculoma (TF) is follicularly differentiated hamartomas mostly appearing during adulthood 8 without sex special tendency. 2,9 Although TF is a benign tumor, Stern et al reported the perineural invasion of it. 10 Trichoepithelioma (TE) is a benign, cutaneous mesenchymal tumor originating from germ layer of hair follicle.…”

Section: Introductionmentioning

confidence: 99%

Histopathological Characteristics may not be Useful in the Differential Diagnosis Between Basal Cell Carcinoma and Benign Tumors of Cutaneous Appandages Originating from Hair Follicle

Şengül¹

2011

UHOD

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Differential diagnosis between benign tumors of cutaneous appandages originating from hair follicle (BTCOHF) (trichoadenoma [TA], trichofolliculoma [TF], trichoepithelioma [TE] and trichoblastoma [TB]) and basal cell carcinoma (BCC) have been tedious for the pathologists, especially in the presence of small specimens to date. Thirty cases of BTCOHF and 30 cases of BCC were retrieved from the archives, deposited from 2004 to 2008. Age, sex, localisation and histopathological characters such as ulceration, pigmentation, inflammation, and cyst formation were comparatively evaluated between both groups and each subgroups. No significant diference was detetected between two groups in the rate of the age, sex and the histopathology. Besides, histopathological characters were not significant for the subgroups of BCC. However, ulceration was observed in TE (Of 21 cases 5, [23.8%]) and TB (All the 5 cases, [100%]), but not in TA and TF which are the subgroups of BTCOHF and the difference was significant (p= 0,005). But, pigmentation, inflammation and cyst formation were not significant among the subgroups of both groups. We can conclude that BCC and BTCOHF may not be discriminated concerning age, sex and histopathological characters including ulceration, pigmentation, inflammation, and cyst formation. Secondly, one may not make the differential diagnosis easily even between the subgroups of each group via evaluating the histopathological characters, so that might create some life-threatening unwelcome outcomes. Keywords: Basal cell carcinoma, Pigmentation, Inflammation, Histopathology ÖZET Histopatolojik karakterler Bazal Hücreli Karsinoma ile K›l Follikülünden Köken Alan Benign Deri Eki Tümörlerinin Ay›r›c› Tan›s›nda Yararl› OlamayabilirTrikoadenoma, trikofolliküloma, trikoepitelyoma ve trikoblastoman›n bazal hücreli karsinomadan ay›r›c› tan›s›, bugüne kadar özellikle küçük spesimenlerde patologlar için can s›k›c› ve usand›r›c› olmaya devam edegelmifltir. Otuz k›l follikülünden köken alan benign deri eki tümörleri olgusu ve 30 bazal hücreli karsinoma olgusu, 2004 -2008 y›llar› aras›nda depoland›¤› arflivden yeniden edinildi. Yafl, cinsiyet, lokalizasyon ve ülserasyon, pigmentasyon, inflamasyon ve kist formasyonu gibi histopatolojik karekterler her iki grup ve her subgrup aras›nda karfl›laflt›rmal› olarak de¤erlendirildi. Yafl, cinsiyet, lokalizasyon ve histopatoloji aç›s›ndan iki grup aras›nda anlaml› fark saptanmad›. Ayr›ca, histopatolojik karekterler bazal hücreli karsinoman›n subgruplar› için anlaml› de¤ildi. Bununla birlikte; ülse-rasyon, k›l follikülünden köken alan benign deri eki tümörlerinin subgruplar› olan trikoepitelyoma (21 olgunun 5'inde [%23.8]) ve trikoblastomada (5 olgunun tümünde [%100]) izlendi, ancak trikoadenoma ve trikofollikülomada izlenmedi ve bu fark anlaml› bulundu (p= 0.005). Pigmentasyon, inflamasyon ve kist formasyonu her iki grubun subgruplar› aras›nda anlaml› de¤ildi.

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Hair follicle tumors of the skin

Cited by 21 publications

References 56 publications

Psoriasis‐like dermoscopic pattern of clear cell acanthoma

Psoriasis‐like dermoscopic pattern of clear cell acanthoma

Malignant Proliferating Trichilemmal Tumors—Report of Three Cases

Histopathological Characteristics may not be Useful in the Differential Diagnosis Between Basal Cell Carcinoma and Benign Tumors of Cutaneous Appandages Originating from Hair Follicle

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