eISSN: 2299-0046
ISSN: 1642-395X
Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii
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4/2021
vol. 38
 
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Letter to the Editor

Recurrent proliferating pilar tumour of the scalp mimicking squamous cell carcinoma successfully treated surgically using S-plasty

Kaja Męcińska-Jundziłł
1
,
Agnieszka Białecka
1
,
Urszula Adamska
1
,
Czanita Cieścińska
1
,
Arkadiusz Jundzill
2
,
Henryk Witmanowski
2
,
Izabela Neska-Długosz
3
,
Dariusz Grzanka
3
,
Rafał Czajkowski
1

  1. Department of Dermatology and Venereology, Faculty of Medicine in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
  2. Department of Plastic Surgery, Faculty of Medicine in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
  3. Department of Clinical Pathomorphology, Faculty of Medicine in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
Adv Dermatol Allergol 2021; XXXVIII (4): 696–698
DOI: https://doi.org/10.5114/ada.2021.108921
Online publish date: 2021/09/17
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Pilar cysts often occur within the scalp. As they arise from the trichilemma or outer root sheath, they are called “trichilemmal cysts” (TCs). In 1966, Wilson-Jones reported uncommon lesions developing from TCs called proliferating pilar tumours (PPTs) which histologically simulated squamous cell carcinoma [1]. PPTs may develop de novo as well [2]. They usually occur on the scalp with a predilection for women [3]. The histological characteristic is trichilemmal-type keratinization [4]. They may be benign, locally aggressive or malignant [5]. In the literature we can find other terms describing these lesions as subepidermal acanthoma, proliferating trichilemmal cyst, invasive hair matrix tumour, invasive pilomatrixoma, proliferating epidermoid cyst, hydatidiform keratinous cyst, giant hair matrix tumour, trichochlamydoacanthoma or pilar cysts and tumours, what is consistent with their ambiguous biological nature [4–6]. We report a case of recurrent PPT of the scalp mimicking squamous cell carcinoma successfully treated surgically using S-plasty with a satisfying aesthetic effect.
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