Nonmelanocytic Skin & Soft Tissue Tumors: A Student's Guide
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Question: What are common clinical mimics of malignant cutaneous and soft-tissue tumors listed in the content?
Answer: Tinea corporis, nummular eczema, seborrheic keratosis, Paget’s disease, superficial basal cell carcinoma (as a mimic in some contexts), actinic kerato
Question: What clinical history feature is classic for cutaneous malignant tumors in this content?
Answer: Presentation as a nonsteroid-responsive dermatosis.
Question: What treatment options besides surgical removal are mentioned for selected cases of malignant cutaneous lesions?
Answer: Cryosurgery, CO2 lasers, 5-fluorouracil (5-FU) ointment, and imiquimod 5% cream.
Question: How does squamous cell carcinoma (SCC) typically present clinically?
Answer: As an elevated, indurated lesion with varying degrees of ulceration and crusting; advanced lesions may show necrosis, infection, and a foul smell from
Question: On what types of skin or lesions does SCC most commonly arise?
Answer: Actinically damaged skin, postburn scars (Marjolin’s ulcer), traumatic scars, stasis ulcers, chronic radiation dermatitis, lupus erythematosus lesions
Question: What variant of squamous cell carcinoma is named in the content?
Answer: Verrucous carcinoma.
Question: Why is differential diagnosis between SCC and BCC important according to the content?
Answer: Because SCC can resemble basal cell carcinoma (BCC), so distinguishing them is important for appropriate management.
Question: What is the recommended primary treatment for SCC mentioned here?
Answer: Surgical removal, frequently using Mohs micrographic surgery; radiotherapy (external-beam or brachytherapy) is also an option.
Question: What is basal cell carcinoma (BCC) described as in terms of frequency and behavior?
Answer: BCC is the most common type of skin cancer; it rarely metastasizes or causes death but is malignant because it invades surrounding tissues and can cau
Question: What areas does BCC most commonly affect and what consequence is not uncommon?
Answer: It most commonly affects the head and neck, and cosmetic disfigurement is not uncommon.