Benign Neoplasms in Practice
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Questions and Answers

What is the most common type of malignant melanoma?

  • Superficial spreading (correct)
  • Lentigo maligna
  • Acral lentiginous
  • Nodular

    • Seborrheic keratosis is a type of malignant neoplasm.

    False (B)

    What type of cancer is primarily associated with basal cells?

    Basal cell carcinoma

    The primary tumor site for acral lentiginous melanoma is on the _____ and nails.

    <p>palms</p> Signup and view all the answers

    Match the following benign neoplasms with their descriptions:

    <p>Nevi = Commonly pigmented lesions that may be benign or malignant Cherry hemangioma = Small, red vascular lesions originating from blood vessels Lipoma = Soft, fatty lumps that are generally painless Epidermal inclusion cyst = Cystic lesions formed from epidermal cells</p> Signup and view all the answers

    Which of the following is a risk factor for developing malignant melanoma?

    <p>Blistering sunburns (D)</p> Signup and view all the answers

    Only older adults can be diagnosed with nodular melanoma.

    <p>False (B)</p> Signup and view all the answers

    What is the recommended treatment for morpheaform nevi?

    <p>Surgical excision or MOHS surgery</p> Signup and view all the answers

    The clinical presentation of a nodular melanoma includes a bluish, _____ nodule that may ulcerate.

    <p>black</p> Signup and view all the answers

    What is a key characteristic of superficial melanoma?

    <p>Begins as nevus or brown papule (A)</p> Signup and view all the answers

    Flashcards

    Nevi

    Benign growths formed from melanocytes, can be congenital or acquired.

    Seborrheic Keratosis

    Common non-cancerous skin growths, often brown or black, scaly appearance.

    Malignant Melanoma

    A type of skin cancer arising from melanocytes, potentially life-threatening.

    Superficial Spreading Melanoma

    Most common type of melanoma, typically starts as a nevus or brown papule.

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    Nodular Melanoma

    Second most common melanoma type; appears as a blue, black, or red nodule.

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    Acral Lentiginous Melanoma

    Melanoma found on palms, soles, and under nails; often diagnosed late.

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    Keloid

    Raised scars that grow larger than the original injury area.

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    Dermatofibroma

    Benign skin nodules that feel firm and can be brownish.

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    Epidermal Inclusion Cyst

    A benign cyst resulting from blocked sebaceous gland; often movable.

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    Cherry Hemangioma

    Bright red moles caused by proliferation of blood vessels.

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    Study Notes

    Benign Neoplasms in Practice

    • Nevi (Melanocytic Nevi): Benign, even color and distribution. Biopsy if appearance changes. Composed of melanocytes. Usually less than 1 cm, tan to brown. Can be symptomatic (itching, bleeding, etc.). Considered normal unless clinically atypical, irritated, or cosmetic concerns.

    • Seborrheic Keratosis: Common benign tumor in those over 40. Appearance "stuck on", various colors (pale brown to dark brown). Velvet or verrucous texture. Often not a concern unless irritated.

    • Solar Lentigo: Benign, sun-induced lesion (liver spots). Pigmented (yellow, brown, or black), flat or slightly raised, typically found on sun-exposed areas.

    • Verruca Vulgaris (Warts): Viral infection, common on hands and knees. Rough, hyperkeratotic surface.

    • Epidermal Inclusion Cyst: Most common cutaneous cyst. Flesh-colored nodule, firm, central pore. Often asymptomatic, can discharge foul-smelling material.

    • Cherry Hemangioma: Common vascular proliferation with age. Small red macules or papules, can sometimes be violet. May bleed with trauma. Not usually a concern unless bothersome or indicative of another condition.

    • Acrochordon (Skin Tag): Small, soft, pedunculated papules. Often found in areas of friction (neck, axillae, groin). May fall off spontaneously. Usually not a concern unless bothersome.

    • Sebaceous Hyperplasia: Overgrowth of sebaceous glands, common in older age. Associated with oily skin.

    • Dermatofibroma: Unknown etiology, often forms in scar tissue or following trauma. Firm, pea-sized nodule, usually asymptomatic except if irritated.

    • Milia: Keratin-filled cysts, common in infants and adults. Small, pearly, superficial lesions, usually on the face.

    • Stucco Keratosis: Thickening of epidermis, most common in men, appears after age 40, "stuck on" appearance. Usually asymptomatic, white or yellowish.

    • Fibrous Papule: Relatively common benign papule found often on the face, around nose and mouth, in those 20-30 years of age.

    • Keloid and Hypertrophic Scars: Overgrowth of scar tissue. Keloids expand beyond the injury, whereas hypertrophic stay within the original wound.

    • Lipoma: Benign fatty tumor. Soft, firm, usually painless, and easily movable.

    Atypical Mole (Dysplastic Nevus)

    • Background: Clinical and histologic definitions are controversial, potentially inherited or acquired throughout lifetime, require monitoring.

    • Presentation: Exhibits ABCDE criteria (asymmetry, border irregularity, color variation, diameter>6mm, evolving/enlarging). Frequently on sun-exposed areas.

    • History: Personal and family history of melanoma, sun exposure.

    • Differentials: Malignant melanoma, melanocytic nevus, seborrheic keratosis.

    • Treatment: Full body exam, patient counseling, photography, monitoring for progression. Surgical shave biopsy, excision with margins.

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    Related Documents

    Benign and Malignant Skin Neoplasms CMI PDF

    Description

    Explore different types of benign neoplasms commonly encountered in practice, including melanocytic nevi, seborrheic keratosis, and warts. This quiz will test your knowledge on their characteristics, diagnosis, and management. Perfect for students and professionals in dermatology and pathology.

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