Question | Spot Diagnosis in Dermatology

Which of the following is the most common type of skin cancer? *

Squamous Cell Carcinoma

Basal Cell Carcinoma

Melanoma

Angiosarcoma

What is a characteristic clinical feature of basal cell carcinoma? *

A scaly, non-healing ulcer with central necrosis

A pearly, translucent nodule with telangiectasia

A rapidly growing, ulcerated nodule with hyperkeratosis

A firm, indurated plaque with satellite lesions

Squamous cell carcinoma is most commonly associated with which of the following risk factors? *

Chronic ultraviolet (UV) exposure

Human papillomavirus (HPV) infection

Chronic arsenic exposure

All of the above

Which of the following is true regarding angiosarcoma? *

It is a slow-growing, benign vascular tumor

It is highly aggressive and has a poor prognosis

It commonly affects young individuals with no risk factors

It is always confined to the skin and does not metastasize

Which of the following is NOT a common site for angiosarcoma? *

Scalp

Breast (post-radiation)

Palms and soles

Liver (associated with vinyl chloride exposure)

Contact dermatitis is classified into which two types? *

Acute and chronic

Irritant and allergic

Superficial and deep

Vesicular and non-vesicular

Which of the following features helps differentiate allergic contact dermatitis from irritant contact dermatitis? *

Allergic contact dermatitis occurs immediately upon exposure

Irritant contact dermatitis is immune-mediated

Allergic contact dermatitis can occur with minimal exposure and affect distant sites

Irritant contact dermatitis always presents with vesicles

Discoid dermatitis is characterized by which of the following clinical presentations? *

Linear vesicles along dermatomes

Round or coin-shaped scaly plaques

Diffuse erythema with pustules

Hypopigmented patches with fine scaling

What is the most appropriate initial treatment for a symptomatic nevus with atypical features? *

Cryotherapy

Excisional biopsy with histopathology

Topical corticosteroids

Observation and follow-up in 6 months

Which of the following is a warning sign of a malignant transformation in a nevus? *

Symmetry and uniform color

Rapid growth and ulceration

Well-defined borders and small size

Stability over many years

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Question | Spot Diagnosis in Dermatology