Giant proliferating trichilemmal cyst
Mariem Mohamed, Yosra Soua
The Pan African Medical Journal. 2014;18:195. doi:10.11604/pamj.2014.18.195.4354

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Giant proliferating trichilemmal cyst

Cite this: The Pan African Medical Journal. 2014;18:195. doi:10.11604/pamj.2014.18.195.4354

Received: 12/04/2014 - Accepted: 03/07/2014 - Published: 05/07/2014

Key words: Trichilemmal cyst, diabetes, painless mass, ulcer

© Mariem Mohamed et al. The Pan African Medical Journal - ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Available online at: http://www.panafrican-med-journal.com/content/article/18/195/full

Corresponding author: Mariem Mohamed, Dermatology Department, Monastir University Hospital, Monastir, Tunisia (mariemmohamed79@yahoo.fr)


Giant proliferating trichilemmal cyst

 

Mariem Mohamed1,&, Yosra Soua1

 

1Dermatology Department, Monastir University Hospital, Monastir, Tunisia

 

 

&Corresponding author
Mariem Mohamed, Dermatology Department, Monastir University Hospital, Monastir, Tunisia

 

 

Image in medicine

A 78-year-old man with diabetes under insulin was referred to our department for a 30-year history of lobulated, painless mass on the frontal scalp area. It was initially growing slowly and later it started to ulcerate with foul smelling discharge and rapid enlargement that interfered with the patient's daily life mainly during the last 6 months. A physical examination showed a huge tumoral lesion, oval in shape, situated in the central frontal area slightly to the left side with an irregular surface area. It was associated with ulceration as well as serous discharge but with no bleeding. The mass was solid in consistency, mobile, measuring about 10 cm×5 cm ×3 cm (figure 1). The surrounding skin was intact. Further examination revealed no palpable lymph nodes. We performed complete excision of the lesion. Histological examination showed cyst cavity with characteristic amorphous eosinophilic keratin regions of trichilemmal keratinization, variable cytologic atypia and mitotic activity together with lobulation of the cyst wall and pilling up of the squamous epithelium. The stroma exhibited numerous vessels and granulation tissue on epidermal hyperplasia. The correlation of clinical findings with histopathology confirmed the diagnosis of proliferating trichilemmal cyst.

Figure 1 : The mass was solid in consistency, mobile, measuring about 10 cm x 5 cm x 3 cm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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