Related Experiment Video
Updated: Jul 29, 2025

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
A Linear Waxy Verrucous Plaque of the Scalp
Despoina D Kakagia1, Konstantinos C Christodoulou2, Christos N Noulas3
1Department of Plastic Surgery, Democritus University of Thrace, Alexandroupolis, GRC.
Abstract:
Nevus sebaceous of Jadassohn (NSJ) is an inborn, cutaneous hamartoma that is presented as a round-oval, or linear, yellowish-orange hairless plaque with an excess of sebaceous glands, typically localized to the head or neck. NSJ disease progresses slowly in three general stages. Due to its embryological origin, it yields an already documented potential for a variety of epidermal and adnexal tumors. The incidence of secondary neoplasms within NSJ is 10-30%, and the risk of neoplastic transformation increases with age. The majority of neoplasms are benign. Regarding malignant tumors, NSJ is usually associated with basal cell carcinoma. All neoplasms are typically encountered in long-standing lesions. Owing to NSJ's ample variety of associations with neoplasms, its management demands a case-driven tailored treatment. We present the case of a 34-year-old female with NSJ.
Related Concept Videos
Papillary Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...
Accessory Structures of the Skin: Hair Growth and Types
Accessory Structures of the Skin: Hair and Hair Follicles
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
Accessory Structures of the Skin: Sebaceous Glands
These glands that produce the oils on the skin and hair are holocrine glands. The mature...
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...

