Genital/Perigenital Inflammatory Linear Verrucous Epidermal Nevus: A Case Series

Anogenital Papular Lesions in Children Five Year Old and Younger: Gender Differences

Introduction:

Anogenital area is a small compartment in the human body. Recognition of various dermatological conditions affecting this area in children is essential for any physician involved in pediatric examination and evaluation.

Aim:

To assess the nature, diagnoses, and gender differences of Anogenital lesions in pediatric patients presented to Royal Medical Services (RMS) general dermatology clinics, who were five year old and younger.

Methods:

The authors reviewed patients’ medical records in the period between September 2015 and September 2018. The inclusion criteria were children of both genders who were five year old or younger and presented with papular lesions in the Anogenital area. Those patients visited the general dermatology clinics of The Royal Medical Services Hospitals from the Eastern and Southern regions of Jordan.

Results:

Over a period of 3 years, a total of 514 patients were five year old or younger presented with various Anogenital papular lesions were evaluated and treated in general dermatology clinics. 35% of the patients presented with Perianal Psuedoverrucous Papules and nodules, 21% presented with Anogenital warts, 16% presented with Molluscum Contageosum. Moreover, 10% were presented with Epidermal nevi, 6% presented with Pearly Penile Papules, 7% presented with Infantile Perineal Pyramidal Protrusion, 4% presented with Vulvar Vestibular Papillomatosis, 0.2% presented with Juvenile Xanthogranuloma, 0.2% presented with lymphangioma Circumscriptum, and 0.2% presented with median raphe cyst. In addition, gender differences were noticed among Genital Warts, Mollascum Contageosum, Pearly Penile Papules, and Vulvar Vestibular Papillomatosis.

Conclusion:

Anogenital papules in children have variable clinical presentations and can be caused by multiple number of infectious and non-infectious factors. The presence of such lesions can be a source of a major concern for parents, and might be mistakenly assumed as a result of sexual assaults. Proper recognition of these papules is of paramount importance for all physicians involved in children examination, to appropriately reassure parents and avoid unnecessary investigations and psychological distress.

Adult-onset inflammatory linear verrucous epidermal nevus: Immunohistochemical studies and review of the literature

Adult-onset inflammatory linear verrucous epidermal nevus (ILVEN) is an uncommon cutaneous disease compared to childhood-onset ILVEN. The typical histopathologic features are alternating parakeratosis and orthokeratosis with an absent granular layer underneath parakeratosis, in contrast to a thickened granular layer below the foci of orthokeratosis in psoriasiform epidermal hyperplasia. Herein, we present a 49-year-old woman with typical clinical and histopathologic characteristics of adult-onset ILVEN, including linear arrangement of thick scaly papules and plaques localized on the medial side of her right leg, ankle, and foot. Immunohistochemical studies included involucrin, Ki-67, and keratin-10. Compared to the staining pattern in psoriasis, the expression of involucrin in this case was of lower intensity and localized to upper epidermal layers with relatively less extensive staining beneath regions of parakeratosis as compared to orthokeratosis; Ki-67 showed lower basal layer proliferative activity; and keratin-10 showed a greater intensity of staining within suprabasal epidermis.

A Case of "Inflammatory Linear Verrucous Epidermal Nevus" (ILVEN) Treated with CO2 Laser Ablation

The "inflammatory linear verrucous epidermal nevus" is a rare disease, consisting of hyperplasia of the normal components of the epidermis. Its clinical features include erythematous and hyperkeratosic, warty, sometimes psoriasiform or lichenoid patches with a typical linear arrangement. At present, there are no effective medical therapies available. Currently, the best therapeutic results are obtained with surgical excision or the latest laser therapy. The Authors present a 9-years old girl with an inflammatory linear verrucous epidermal nevus on her neck, successfully treated with CO₂ Laser ablation.