Dermatology Quiz: Skin Conditions Overview

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Questions and Answers

What is the most common age range that perioral dermatitis affects?

Puberty

20-50 years old (correct)

Infancy

60+ years old

Which of the following is a common risk factor for perioral dermatitis?

Fluoridated toothpaste (correct)

Parkinson's disease

Nutritional deficiencies

HIV

What is a characteristic physical finding of lichen planus?

Erythematous grouped papulopustules that may become plaques with scales (correct)

Greasy looking plaques with yellowish scales

Poorly defined erythematous patches, papules, & plaques with or without scaling

Yellow greasy scales on the scalp

Which of the following is a common treatment for seborrheic dermatitis?

Selenium sulfide shampoo (B) Signup and view all the answers

Which of the following is NOT a common eliciting or exacerbating factor for eczema/dermatitis?

Venous insufficiency (C) Signup and view all the answers

Which of the following is a characteristic symptom of eczema/dermatitis?

Dry skin and pruritus (B) Signup and view all the answers

What is the most common age group affected by Stasis Dermatitis?

<blockquote> 50 years old (A) </blockquote> Signup and view all the answers

Which of the following is NOT a common symptom of Stasis Dermatitis?

Coin-shaped plaques (D) Signup and view all the answers

Which of the following treatments is appropriate for severe, intractable perioral dermatitis?

Oral corticosteroids (C) Signup and view all the answers

What is the primary treatment for Stasis Dermatitis?

Removing the etiologic agent (A) Signup and view all the answers

Which of the following is a common treatment for eczema/dermatitis?

Topical corticosteroids (B) Signup and view all the answers

What is a key characteristic of perioral dermatitis?

It spares the vermilion border of the lips. (D) Signup and view all the answers

Which of the following is a common cause of allergic Stasis Dermatitis?

All of the above (D) Signup and view all the answers

Which of the following is a common risk factor for seborrheic dermatitis?

Immunosuppression (C) Signup and view all the answers

What is the most common location for Stasis Dermatitis to occur?

Legs and upper extremities (D) Signup and view all the answers

Which of the following is a characteristic of Stasis Dermatitis presentation?

Well-demarcated erythema and edema (A) Signup and view all the answers

What is the purpose of using wet dressings in Stasis Dermatitis treatment?

All of the above (D) Signup and view all the answers

Which of the following is a systemic treatment option for severe Stasis Dermatitis?

Oral prednisone (C) Signup and view all the answers

Which of the following is NOT a risk factor for Stevens-Johnson Syndrome (SJS) or Toxic Epidermal Necrolysis (TEN)?

Psoriasis (C) Signup and view all the answers

A patient presents with painful skin lesions that have a burning sensation. The lesions are ill-defined and coalescing, with erythematous macules and purpuric centers. The patient also reports that the lesions started on the face and thorax and are spreading symmetrically. What is the most likely diagnosis?

Stevens-Johnson Syndrome (SJS) (B) Signup and view all the answers

A patient presents with pruritic, large, tense bullae scattered in groups. The bullae do not rupture easily. The patient also reports a prior history of urticarial eruption. What is the most likely diagnosis?

Bullous Pemphigoid (D) Signup and view all the answers

Which of the following is NOT a common site of distribution for bullous pemphigoid?

Palms and soles (A) Signup and view all the answers

A patient presents with a blistering skin condition that has a characteristic distribution in the axillae, medial thigh, groin, and flexor upper extremities. What is the most likely diagnosis?

Bullous Pemphigoid (B) Signup and view all the answers

Which of the following signs is pathognomonic for Toxic Epidermal Necrolysis (TEN) and pemphigus?

Nikolsky Sign (A) Signup and view all the answers

What is the recommended treatment for Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN)?

Intravenous immunoglobulin (IVIG) and systemic steroids (D) Signup and view all the answers

Which of the following is NOT a common symptom of Pityriasis Rosea?

Scaling (C) Signup and view all the answers

Which of the following medications is LEAST likely to be associated with Pityriasis Rosea?

Amoxicillin (C) Signup and view all the answers

Which of the following accurately describes the distribution pattern of Pityriasis Rosea lesions?

Typically presents as a single lesion, often on the trunk. (D) Signup and view all the answers

Which of the following is NOT a characteristic feature of Pityriasis Rosea?

Lesions are typically located on the flexor surfaces of extremities. (C) Signup and view all the answers

In Hidradenitis Suppurativa, what is the primary pathological process that leads to the formation of sinus tracts and scarring?

Chronic inflammation and destruction of apocrine glands and surrounding tissue. (A) Signup and view all the answers

What is a key distinguishing feature that differentiates Hidradenitis Suppurativa from Folliculitis?

The tendency for Hidradenitis Suppurativa to heal with scarring. (B) Signup and view all the answers

Which of the following treatment options is considered first-line for severe, intractable Hidradenitis Suppurativa?

Surgical excision and skin grafting. (B) Signup and view all the answers

Which of these factors is a known risk factor for developing Hidradenitis Suppurativa?

A history of acne vulgaris. (A) Signup and view all the answers

In the context of Hidradenitis Suppurativa, what is the significance of the reported 'spontaneous remission at > 35 y/o'?

This indicates that the disease is self-limiting and often resolves with time. (B) Signup and view all the answers

Why is Adalimumab (Humira) a potential treatment option for Hidradenitis Suppurativa?

It is an anti-inflammatory medication that suppresses the immune system. (B) Signup and view all the answers

Which of these statements accurately describes the pathogenesis of Hidradenitis Suppurativa?

The exact cause is unknown but it is theorized to be a multifactorial process involving factors such as genetics, hormones, and lifestyle. (C) Signup and view all the answers

What is a significant challenge in effectively managing Hidradenitis Suppurativa?

It is a chronic, often recurrent condition with limited treatment options and high rates of scarring. (A) Signup and view all the answers

Which of the following statements accurately describes the typical presentation of a herald patch in pityriasis rosea?

An oval, salmon-red plaque or patch with a fine, peripheral scale, typically found on the trunk. (C) Signup and view all the answers

What distinguishes guttate psoriasis from other types of psoriasis?

Its occurrence primarily in young adults and children, often after a streptococcal infection. (B) Signup and view all the answers

Which of the following is NOT a recognized treatment option for pityriasis rosea?

Systemic antibiotics to treat the underlying viral infection. (B) Signup and view all the answers

What is the most common area for the secondary eruption of pityriasis rosea?

The back, often in a Christmas tree pattern. (D) Signup and view all the answers

Which of the following is LEAST likely to be a trigger or aggravating factor for psoriasis?

Intake of large amounts of iron supplements. (B) Signup and view all the answers

Study Notes

Skin Cell Formation

Keratinocytes divide in the deepest (basal) layer
Cells move up in the dermis, changing shape and composition
Keratin proteins and lipids form a matrix that protects the skin and gives it strength
The outermost layer of skin cells die and shed off from the skin, a process called desquamation

Diagnosis Criteria (CLAMPS TN)

Color: Describes the lesion's color
Location/distribution: Extent and pattern of the lesions
Arrangement: Grouped or disseminated and whether confluence occurs
Margination: Well-defined or ill-defined borders
Palpation: Consistency, temperature, mobility, tenderness, and depth of the lesion
Shape: The lesion's form
Type: Examples include papule, macule, or pustule
Number: Single or multiple lesions and count

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Description

Test your knowledge on various skin conditions such as perioral dermatitis, eczema, and seborrheic dermatitis. This quiz covers common risk factors, treatments, and symptoms associated with these dermatological issues. Ideal for students and professionals in the medical field who want to refresh their understanding of dermatology.