Ann Dermatol.  2011 May;23(2):236-238. 10.5021/ad.2011.23.2.236.

A Case of Perifollicular Fibroma

Affiliations
  • 1Department of Dermatology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. gylee0716@daum.net

Abstract

Perifollicular fibroma (PFF) is a very rare proliferative lesion of the perifollicular sheath. A flesh-colored, dome-shaped papulonodule is usually located on the face or the neck. These papulonodules may be single or multiple. Histologically, the lesion consists of a concentric arrangement of cellular fibrous tissue around a normal hair follicle. We describe here an unusual case of PFF in a 41-year-old female who had an asymptomatic small skin colored papule on the scalp, and this is an uncommon location for PFF.

Keyword

Perifollicular fibroma; Scalp

MeSH Terms

Adult
Female
Fibroma
Hair Follicle
Humans
Neck
Scalp
Skin

Figure

  • Fig. 1 A solitary, 0.5×0.5 cm-sized, flesh-colored, dome-shaped papule on the scalp.

  • Fig. 2 The hair follicle is surrounded by a dense concentric fibrous sheath (A: H&E, ×40, B: H&E, ×100).

  • Fig. 3 Masson's trichrome staining shows concentric layers of collagen around the follicle (Masson's trichrome, ×40).

  • Fig. 4 Increased CD34-positive cells within the fibrosis (CD34, ×200).


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