Squamous Cell Carcinoma Ulcerated View

Description

Ulcerated cutaneous squamous cell carcinoma (SCC) is presented in a 3D skin cross-section, with a disrupted epidermal surface overlying a central crater of ulceration capped by crust and compact keratinous debris. Beneath the defect, atypical keratinocytes extend from the epidermis into the superficial and mid dermis, approaching adnexal structures such as hair follicles and coiled eccrine sweat glands. Surrounding dermis contains small arteries and veins (red and blue) and accompanying nerves, while the hypodermis (subcutaneous fat) lies inferiorly as lobulated yellow adipose tissue. Surface ulceration in SCC is more than a cosmetic feature, it often correlates with a deeply infiltrative growth pattern and a lesion that has outgrown its blood supply, leaving necrosis and secondary crusting. Depth of invasion into the dermis, proximity to perineural spaces, and extension along adnexal epithelium all affect staging, margin planning, and recurrence risk, and they help explain clinical red flags such as pain, paresthesia, or a nonhealing ulcer on sun-exposed skin. This is where local spread matters. For Mohs micrographic surgery and standard excision alike, the relationship of the tumor front to adnexal structures and neurovascular bundles is a practical teaching point for why “clear at the surface” does not equal “clear in depth.” Dermatology and pathology courses can use this artwork to anchor discussions of keratinocyte malignancy, ulcerated tumor morphology, and the anatomic basis of perineural symptoms, while surgical education materials can pair it with margin assessment and biopsy technique (shave vs punch vs excisional) considerations. It also suits patient-facing oncology brochures that need accurate skin-layer context without losing the clinical message of a persistent ulcerated lesion. Anatomical accuracy verified by SciePro's Medical Advisory Board.