Pilomatrixoma of the preauricular region

Yoshimura, Yuki; Oka, Masafumi

doi:10.1016/0266-4356(90)90043-k

Cited by 10 publications

(4 citation statements)

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“…In particular, as the physician is not familiar with such a case, it does not come to mind. Like in pilomatrixoma, in the malignant form, which has a high potential for local recurrence, a resection is required, with removal of 1-2 cm of the surrounding healthy tissue in order to prevent the local relapse [8]. The recurrence rate has been reported as 0-3% in the literature.…”

Section: Discussionmentioning

confidence: 99%

Pilomatrixoma of the Lower Extremity

2016

Ann Clin Anal Med

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ÖzetTrikomatriksoma, Trikilemmal kist veya Malherbe'nin kalsifik epitelyoması olarakta bilinen Pilomatriksoma kıl foliküllerinden köken alan iyi huylu bir tümördür. Çok nadir görülmesine karşın yanlış tanınabilmesi ve diğer lezyonlarla karışabilmesi nedeniyle klinik öneme sahiptir. Pilomatriksoma genelde boyun bölgesinde görül-mektedir. Bu olgu sunumunda daha once literatürde çok nadir görülen alt ekstremite yerleşimli pilomatriksoma anlatılmaktadır. Anahtar KelimelerPilomatriksoma; Alt Ekstremite; Benign Tümör Abstract Pilomatrixoma, also known as trikomatriksoma, trichilemmal cyst, or Malherbe's calcifying epithelioma, is a benign tumor originating from the matrix cells of the hair follicles. Despite its rarity, it is of clinical importance, as it may lead to incorrect pre-diagnosis, being confused with other lesions. It is generally seen on the neck region. In this case report, pilomatrixoma of the lower extremity has been described, which has been described in the literature extremely rare.

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Section: Discussionmentioning

confidence: 99%

Pilomatrixoma of the Lower Extremity

2016

Ann Clin Anal Med

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“…8 araştırılmalıdır. 9 Bazoloid hücrelerde, hücresel pleomorfizm, mitotik aktivite, lokal yayılım veya damarsal yayılım mevcut ise pilomatriks karsinoma tanısı konulmakta olup bu pilomatriksomanın kötü dönüşüm gösterdiğini işaret etmektedir. 10,12 Olgumuzun histopatolojik incelemesinde, çevrede bazaloid, ortasında eozinofilik gölge hücreleri, çevre stromada çok çekirdekli ve tek çekirdekli tipte iltihabi hücre infiltrasyonu yayılım tespit edildi.…”

Section: Discussionunclassified

Üst Göz Kapağında Pilomatriksoma

Kalkan¹,

Gerçeker²,

Turgut³

et al. 2013

Tjo

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ÖzetPilomatriksoma göz kapağının nadir görülen, kıl folikülünün matriksinden köken alan, iyi huylu, kalsifiye deri ekinden köken alan bir yumuşak doku tümörüdür. Bu yazıda kaş altında iyi huylu kitle şeklinde ortaya çıkan pilomatriksomalı bir olguyu sunmak amaçlandı. Sekiz yaşında çocuk hasta, sağ üst göz kapağında 1,5 ay önce başlayan ve son 1 haftada hızlı büyüme gösteren ağrısız kitle şikayetiyle kliniğimize başvurdu. Yapılan oftalmolojik muayenesinde sağ üst kapak kaş altında 0,7x1 cm boyutlarında, pembe-mor, yarı sert, ciltten kabarık, loplu kitle mevcuttu. Yapılan orbita bilgisayarlı tomografi (BT)'de 7 mm çaplı, düzgün konturlu, komşu yapılara yayılım bulgusu olmayan, iyi huylu, homojen kontrastlanan kitlesel lezyon tespit edildi. Lezyon, genel anestezi altında etrafındaki dokudan keskin diseksiyonla total olarak çıkarıldı. Histopatolojik inceleme sonucu pilomatriksoma tanısı konuldu. Sıklıkla ilk iki on yılda görülen, iyi huylu pilomatriksoma (Malherbe Tümörü) göz kapağı kitlelerinin ayırıcı tanısında akılda tutulmalıdır. Pilomatriksomanın kötü huylu dönüşüm gösteren tipi de olduğu unutulmamalı ve takiplerin süresi uzun tutulmalıdır. ( Sum maryPilomatrixoma is a rare, benign, calcified, adnexial soft tissue tumor of the eyelid which originates from the matrix of hair follicle. In this study, we aimed to present a pilomatrixoma case which presented as a benign mass at the lower part of the eyebrow. An 8-yearold child patient referred to our clinic with a painless mass at the right superior eyelid which had appeared 1,5 month before and seemed to be increasing in size for the last week. The ophthalmologic examination revealed a lobular, 0,7x1 cm sized, pink-violet, solid, swollen mass at the lower part of the right eyebrow. The position of globe was normal and the ocular motility was unrestricted. Orbital computed tomography (CT) revealed 7 mm sized, smooth, noninvasive, benign, homogeneous, well-contoured mass lesion. The lesion was totally excised with sharp dissection under general anesthesia. Benign pilomatrixoma (Malherbe tumor), which is frequently seen especially in the initial two decades, is to be kept in mind in the differential diagnosis of eyelid masses. We should follow up the patients for long term due to possible malignant transformation of pilomatrixoma. (Turk J Ophthalmol 2013; 43: 213-5)

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“…It is also known as pilomatrixoma trichomatricoma, or pilomatricoma [15]. It usually occurs as a single nodule with diameter of 0.5-3.0 cm, localized dermally or subcutaneously; however, sometimes multiple pilomatrixoma may occur [3,13,26]. It has four clinical variants: eruptive, perforating, familial associated with myotonic dystrophy, and a recurrent invasive, nonmetastatic pilomatrix carcinoma [2,5,14,24].…”

Section: Introductionmentioning

confidence: 96%

Giant pilomatrixoma

Askar

2002

European Journal of Plastic Surgery

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Pilomatrixoma is most commonly seen in the head and neck region, occurring in the first two decades of life. It varies from 0.5 cm to 3 cm in diameter. Pilomatrixoma differentiates toward hair cells. Treatment of choice is excision. A 42-year-old woman presented with a giant painful pilomatrixoma, 5 cm in diameter, in the forearm. It had gradually grown larger over a period of years. Physical examination revealed a painful, red-brown colored, ulcerative, mobile mass, 50 mm in diameter, with surrounding hyperemia. Histopathological examination of the specimen provided the diagnosis of "pilomatrixoma". The mass was totally excised, and the resultant tissue defect was repaired with a full-thickness skin graft from the inguinal area. Two years later, there was no recurrence and the postoperative scar was cosmetically acceptable. Generally, there is no recurrence if the pilomatrixoma is totally resected. The case presented in this paper is of interest because the lesion had a large diameter, appeared in the fourth decade, and had a "faceted stone" appearance with perforation of the overlying skin. It is important to differentiate this lesion from a pilomatrix carcinoma. Fig. 1 A 42-year-old woman with a painful, red-brown, ulcerative, mobile mass, 50 mm in diameter, with surrounding hyperemiaFig. 3 The 2-year postoperative result was cosmetically acceptable

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Pilomatrixoma of the preauricular region

Cited by 10 publications

References 5 publications

Pilomatrixoma of the Lower Extremity

Pilomatrixoma of the Lower Extremity

Üst Göz Kapağında Pilomatriksoma

Giant pilomatrixoma

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