Psychological Aspects of Acne — MCQs
A 19-year-old woman presents to the dermatology clinic for a follow-up of worsening acne. She has previously tried topical tretinoin as well as topical and oral antibiotics with no improvement. She recently moved to the area for college and says the acne has caused significant emotional distress when it comes to making new friends. She has no significant past medical or surgical history. Family and social history are also noncontributory. The patient’s blood pressure is 118/77 mm Hg, the pulse is 76/min, the respiratory rate is 17/min, and the temperature is 36.6°C (97.9°F). Physical examination reveals erythematous skin lesions including both open and closed comedones with inflammatory lesions overlying her face, neck, and upper back. The patient asks about oral isotretinoin. Which of the following is the most important step in counseling this patient prior to prescribing oral isotretinoin?
Body dysmorphic disorder can be associated with all except
Recalcitrant acne is treated by:
First-line pharmacological treatment for body dysmorphic disorder is:
Which of the following is the causative agent for acne fulminans?
Statement 1 - A 59-year-old patient presents with flaccid bullae. Histopathology shows a suprabasal acantholytic split. Statement 2 - The row of tombstones appearance is diagnostic of Pemphigus vulgaris.
A 24-year-old woman presents with multiple nodular, cystic, and pustular lesions on her face and shoulders for 2 years. What is the drug of choice for her treatment?
An adolescent male presents with severe acne lesions and sinus tracts. Which is the most effective drug for this condition?
A girl about to marry has comedonal acne. Drug to treat such a case is:
Treatment of choice for Nodulocystic Acne is:
Psychological Aspects of Acne Indian Medical PG Practice Questions and MCQs
Question 1: A 19-year-old woman presents to the dermatology clinic for a follow-up of worsening acne. She has previously tried topical tretinoin as well as topical and oral antibiotics with no improvement. She recently moved to the area for college and says the acne has caused significant emotional distress when it comes to making new friends. She has no significant past medical or surgical history. Family and social history are also noncontributory. The patient’s blood pressure is 118/77 mm Hg, the pulse is 76/min, the respiratory rate is 17/min, and the temperature is 36.6°C (97.9°F). Physical examination reveals erythematous skin lesions including both open and closed comedones with inflammatory lesions overlying her face, neck, and upper back. The patient asks about oral isotretinoin. Which of the following is the most important step in counseling this patient prior to prescribing oral isotretinoin?
- A. Wear a wide-brimmed hat outdoors
- B. Apply topical retinoids in the evening before bed
- C. Document 2 negative urine or blood pregnancy tests before beginning oral isotretinoin (Correct Answer)
- D. Use non-comedogenic sunscreen daily with SPF of at least 45
- E. Avoid direct sunlight, from 10am to 2pm
Explanation: ***Document 2 negative urine or blood pregnancy tests before beginning oral isotretinoin*** - **Oral isotretinoin** is a potent **teratogen**, meaning it can cause severe congenital disabilities if taken during pregnancy. Therefore, ensuring the patient is not pregnant is a critical safety measure. - Due to its high teratogenic risk, female patients of childbearing potential must be enrolled in the **iPLEDGE program**, which requires two negative pregnancy tests prior to starting isotretinoin and monthly negative pregnancy tests during treatment. *Wear a wide-brimmed hat outdoors* - While sun protection is important during isotretinoin treatment due to increased photosensitivity, wearing a wide-brimmed hat alone is not the *most important* counseling step, especially when considering the significant teratogenic risk. - This is a general recommendation for sun protection but does not address the primary safety concern associated with isotretinoin. *Apply topical retinoids in the evening before bed* - The patient has already tried **topical tretinoin** (a topical retinoid) with no improvement, indicating a need for a different treatment approach. - Combining oral isotretinoin with topical retinoids can increase skin irritation and dryness, and it's generally not recommended to use both simultaneously. *Use non-comedogenic sunscreen daily with SPF of at least 45* - Using **sunscreen** is important with isotretinoin due to **photosensitivity**. However, ensuring the patient is not pregnant is a more critical safety step given the severe risks of birth defects. - Sunscreen use is part of general skin care advice for isotretinoin but secondary to pregnancy prevention. *Avoid direct sunlight, from 10am to 2pm* - Avoiding direct sunlight is a good practice for anyone, and especially for those on isotretinoin due to increased **photosensitivity**. However, this is a lifestyle recommendation and not the most crucial safety prerequisite for starting the medication. - The primary concern before initiating treatment is addressing the **teratogenic** potential of the drug.
Question 2: Body dysmorphic disorder can be associated with all except
- A. Bulimia nervosa
- B. OCD
- C. Anxiety
- D. Mania (Correct Answer)
Explanation: ***Mania*** - **Mania** is a state of elevated, expansive, or irritable mood that is distinct from the persistent preoccupation with perceived bodily defects seen in **body dysmorphic disorder (BDD)**. - While agitation can occur in BDD, the core symptom profile of **mania**, including decreased need for sleep, grandiosity, and racing thoughts, is not a typical associated feature. *Bulimia nervosa* - **Bulimia nervosa** can co-occur with BDD, particularly when the perceived defects relate to body weight, shape, or specific body parts. - Both disorders involve intense preoccupation with body image and often lead to harmful behaviors to attempt to "correct" perceived flaws. *OCD* - **Obsessive-compulsive disorder (OCD)** shares strong phenomenological similarities with BDD, including intrusive thoughts (obsessions) and repetitive behaviors (compulsions). - BDD is often conceptualized as part of the **OCD spectrum**, with both disorders involving obsessive thoughts and repetitive behaviors related to specific concerns. *Anxiety* - **Anxiety disorders** are highly comorbid with BDD, as individuals often experience significant distress, fear of judgment, and social avoidance due to their perceived flaws. - The constant preoccupation and efforts to conceal or fix perceived defects can lead to chronic anxiety and panic attacks.
Question 3: Recalcitrant acne is treated by:
- A. Steroids
- B. Retinoids (Correct Answer)
- C. Oral erythromycin
- D. Oral tetracycline
Explanation: ***Retinoids*** - **Oral retinoids**, particularly **isotretinoin**, are highly effective for **recalcitrant, severe acne** that has not responded to conventional therapies. - They work by reducing **sebum production**, inhibiting **Propionibacterium acnes**, normalizing **follicular keratinization**, and possessing **anti-inflammatory** properties. *Steroids* - **Systemic steroids** are generally not used for long-term acne treatment due to significant side effects and the potential for **steroid-induced acne**. - They may be used short-term for **severe nodulocystic acne** with significant inflammation, but not as a primary treatment for recalcitrance. *Oral erythromycin* - **Oral erythromycin** is an antibiotic sometimes used for acne, but resistance is common, limiting its effectiveness, especially in **recalcitrant cases**. - It primarily targets **Propionibacterium acnes** and has some **anti-inflammatory** effects, but is less potent than retinoids for severe, persistent acne. *Oral tetracycline* - **Oral tetracyclines** (e.g., doxycycline, minocycline) are commonly used for moderate to severe acne, but if acne is **recalcitrant**, it indicates a lack of response to these antibiotics. - Their mechanism involves reducing **bacterial growth** and inflammation, but they do not address the underlying pathogenesis of severe acne as comprehensively as retinoids.
Question 4: First-line pharmacological treatment for body dysmorphic disorder is:
- A. SSRI regular dose
- B. Benzodiazepines
- C. Antipsychotics
- D. SSRI high dose (Correct Answer)
Explanation: ***SSRI high dose*** - **High-dose SSRIs** are the recommended first-line pharmacological treatment for Body Dysmorphic Disorder due to their effectiveness in reducing repetitive behaviors and preoccupation with perceived flaws. - The efficacy often requires doses higher than those used for other anxiety or depressive disorders, reflecting the **severity of symptoms** in BDD. *SSRI regular dose* - While SSRIs are the correct class of medication, a **regular dose** is often insufficient to achieve a significant therapeutic response in individuals with Body Dysmorphic Disorder. - Patients with BDD typically require **higher doses** to adequately target the obsessive-compulsive nature of their symptoms. *Benzodiazepines* - **Benzodiazepines** are generally not indicated as a first-line treatment for BDD as they do not address the core symptoms of obsessive thoughts and compulsive behaviors. - They may be used for **short-term management** of severe anxiety, but carry risks of dependence and tolerance with long-term use. *Antipsychotics* - **Antipsychotics** are not considered first-line for Body Dysmorphic Disorder unless there are significant psychotic features or delusions, which are not universal in BDD. - They may be used as an **adjunct therapy** in refractory cases, particularly when there is a delusional intensity to the perceived flaws.
Question 5: Which of the following is the causative agent for acne fulminans?
- A. Staphylococcus aureus
- B. Malassezia furfur
- C. Propionibacterium acnes (Cutibacterium acnes) (Correct Answer)
- D. Streptococcus pyogenes
Explanation: ***Propionibacterium acnes (Cutibacterium acnes)*** - **Acne fulminans** is a severe, ulcerative form of acne that is considered an **autoinflammatory syndrome** rather than a simple bacterial infection - While the exact etiology remains unclear, ***Cutibacterium acnes*** (formerly *Propionibacterium acnes*) plays a significant role in the pathophysiology - It is believed that acne fulminans may result from a **hypersensitivity reaction to *C. acnes* antigens** or an exaggerated immune response to the bacterium - *C. acnes* is the **most relevant microorganism** associated with all forms of acne, including acne vulgaris and severe variants like acne fulminans - Treatment often includes systemic corticosteroids (to control inflammation) combined with isotretinoin *Staphylococcus aureus* - *Staphylococcus aureus* causes **bacterial skin infections** such as folliculitis, impetigo, furuncles, and cellulitis - While secondary bacterial superinfection with *S. aureus* can complicate acne lesions, it is **not the primary organism** associated with acne fulminans *Malassezia furfur* - *Malassezia furfur* (now classified as *Malassezia globosa* or *M. restricta*) is a **yeast** that causes **pityriasis versicolor** and **Malassezia folliculitis** (also called fungal acne or pityrosporum folliculitis) - It is **not involved** in the pathogenesis of acne vulgaris or acne fulminans *Streptococcus pyogenes* - *Streptococcus pyogenes* is a common cause of **streptococcal infections** including pharyngitis, impetigo, erysipelas, and cellulitis - It is **not associated** with acne or acne fulminans pathogenesis
Question 6: Statement 1 - A 59-year-old patient presents with flaccid bullae. Histopathology shows a suprabasal acantholytic split. Statement 2 - The row of tombstones appearance is diagnostic of Pemphigus vulgaris.
- A. Statements 1 & 2 are correct, 2 is not explaining 1 (Correct Answer)
- B. Statements 1 and 2 are correct and 2 is the correct explanation for 1
- C. Statements 1 and 2 are incorrect
- D. Statement 1 is incorrect
Explanation: ***Correct: Statements 1 & 2 are correct, 2 is not explaining 1*** **Analysis of Statement 1:** - A 59-year-old patient with **flaccid bullae** and **suprabasal acantholytic split** on histopathology is the classic presentation of **Pemphigus vulgaris** - The flaccid (easily ruptured) nature of bullae distinguishes it from tense bullae seen in bullous pemphigoid - The suprabasal location of the split (just above the basal layer) with acantholysis (loss of cell-to-cell adhesion) is pathognomonic - **Statement 1 is CORRECT** ✓ **Analysis of Statement 2:** - The **"row of tombstones" or "tombstone appearance"** is indeed a diagnostic histopathological feature of Pemphigus vulgaris - This appearance results from basal keratinocytes remaining attached to the basement membrane while suprabasal cells separate due to acantholysis - The intact basal cells standing upright resemble a row of tombstones - **Statement 2 is CORRECT** ✓ **Does Statement 2 explain Statement 1?** - Statement 2 describes a **histopathological appearance** (tombstone pattern) that is a **consequence** of the suprabasal split - However, it does NOT explain the **underlying cause** of the flaccid bullae or the suprabasal split - The true explanation involves **IgG autoantibodies against desmoglein 3 (and desmoglein 1)**, which attack intercellular adhesion structures (desmosomes), causing **acantholysis** - Therefore, **Statement 2 does NOT explain Statement 1** ✗ *Incorrect: Statement 2 is the correct explanation for Statement 1* - While both statements describe features of Pemphigus vulgaris, the tombstone appearance is a descriptive finding, not an explanatory mechanism *Incorrect: Statements 1 and 2 are incorrect* - Both statements are medically accurate descriptions of Pemphigus vulgaris features *Incorrect: Statement 1 is incorrect* - Statement 1 correctly describes the cardinal clinical and histopathological features of Pemphigus vulgaris
Question 7: A 24-year-old woman presents with multiple nodular, cystic, and pustular lesions on her face and shoulders for 2 years. What is the drug of choice for her treatment?
- A. Isotretinoin (Correct Answer)
- B. Azithromycin
- C. Doxycycline
- D. Acitretin
Explanation: ***Isotretinoin*** - This patient presents with **severe nodulocystic acne**, characterized by multiple nodular, cystic, and pustular lesions, which is the primary indication for oral isotretinoin. - Isotretinoin is a potent systemic retinoid that **reduces sebum production**, inhibits _Propionibacterium acnes_, normalizes keratinization, and has anti-inflammatory effects, leading to significant and often long-term remission. *Azithromycin* - Azithromycin is an **antibiotic** that can be used for inflammatory acne, but it is typically reserved for patients who cannot tolerate or are resistant to other tetracycline-class antibiotics. - While it has anti-inflammatory properties, it is generally **less effective for severe nodulocystic acne** compared to isotretinoin. *Doxycycline* - Doxycycline is a **tetracycline antibiotic** commonly used for moderate to severe inflammatory acne due to its anti-inflammatory effects and ability to reduce _P. acnes_ bacteria. - However, for **severe nodulocystic acne**, systemic antibiotics like doxycycline are often insufficient as monotherapy and **isotretinoin is the preferred treatment** for its superior efficacy in such cases. *Acitretin* - Acitretin is a systemic retinoid primarily used for **severe psoriasis** and other keratinization disorders. - It is **not indicated for the treatment of acne** and has a different safety profile and mechanism of action compared to isotretinoin.
Question 8: An adolescent male presents with severe acne lesions and sinus tracts. Which is the most effective drug for this condition?
- A. Minocycline
- B. Doxycycline
- C. Isotretinoin (Correct Answer)
- D. Topical dapsone
Explanation: ***Isotretinoin*** - This patient presents with **severe acne**, likely cystic or nodular, given the mention of "sinus tracts," which often correlates with **acne conglobata**. - **Isotretinoin** is the most effective treatment for severe acne as it targets all four pathogenic factors of acne: **sebaceous gland activity**, **follicular hyperkeratinization**, *C. acnes* proliferation, and inflammation. *Minocycline* - Minocycline is an **oral antibiotic** used for moderate to severe inflammatory acne, primarily due to its anti-inflammatory properties and ability to reduce *C. acnes*. - While effective for some inflammatory acne, it is **less effective than isotretinoin** for severe, nodulocystic acne or acne with sinus tracts and is not a definitive cure. *Doxycycline* - Doxycycline is another **oral tetracycline antibiotic** commonly used for moderate to severe inflammatory acne due to its anti-inflammatory effects and reduction of *C. acnes*. - Similar to minocycline, it is a good option for inflammatory acne but **insufficient for very severe, recalcitrant acne** with sinus tracts, where isotretinoin is superior. *Topical dapsone* - Topical dapsone is an **anti-inflammatory agent** primarily used for mild to moderate inflammatory acne, particularly papules and pustules. - It is **not effective for severe nodulocystic acne** or acne associated with sinus tracts and would not be appropriate as monotherapy for this presentation.
Question 9: A girl about to marry has comedonal acne. Drug to treat such a case is:
- A. Topical antibiotic
- B. Retinoids (Correct Answer)
- C. Estrogen
- D. Benzoyl peroxide
Explanation: ***Retinoids*** - **Topical retinoids** (e.g., tretinoin, adapalene) are the cornerstone of comedonal acne treatment as they normalize follicular keratinization, preventing the formation of microcomedones and promoting their expulsion. - They work by **reducing hyperkeratinization** and the adhesion of epidermal cells within the follicle, which directly targets the underlying pathology of comedonal acne. *Topical antibiotic* - Topical antibiotics (e.g., clindamycin, erythromycin) primarily target the **bacterial component** of acne, specifically *Cutibacterium acnes*, and have anti-inflammatory effects. - They are less effective for purely **comedonal acne**, which lacks significant inflammatory lesions or bacterial overgrowth as the primary issue. *Estrogen* - Estrogen, often combined with progestin in **oral contraceptives**, can treat acne by reducing androgen levels and thus decreasing sebum production. - This is typically used for **hormonal acne** with inflammatory lesions, and it is not the first-line treatment for purely comedonal acne. *Benzoyl peroxide* - **Benzoyl peroxide** is an antimicrobial agent and has comedolytic properties, meaning it helps to shed dead skin cells and prevent clogged pores. - While it has some benefit, it is often more effective for **inflammatory acne** due to its antimicrobial action and is secondary to retinoids for primary comedonal treatment.
Question 10: Treatment of choice for Nodulocystic Acne is:
- A. Isotretinoin (Correct Answer)
- B. Erythromycin
- C. PUVA
- D. Tetracycline
Explanation: ***Isotretinoin*** - **Isotretinoin** is a systemic retinoid that targets all four major pathogenic factors of acne: **sebum production**, **follicular hyperkeratinization**, **Propionibacterium acnes growth**, and **inflammation**. - It is considered the most effective medication for **severe, nodulocystic acne**, often leading to long-term remission. *Erythromycin* - **Erythromycin** is a topical or oral antibiotic primarily used for its antibacterial and anti-inflammatory properties against *P. acnes*. - While useful for milder inflammatory acne, it is generally **insufficient for severe nodulocystic acne** and carries risks of **antibiotic resistance**. *PUVA* - **PUVA (Psoralen plus ultraviolet A)** therapy is a form of photochemotherapy primarily used for severe **psoriasis**, **eczema**, and **cutaneous T-cell lymphoma**. - It is **not a treatment for acne** and has significant side effects, including increased risk of **skin cancer**. *Tetracycline* - **Tetracycline** is an oral antibiotic often used to treat moderate to severe inflammatory acne due to its anti-inflammatory effects and reduction of *P. acnes*. - While effective for some inflammatory acne, it is typically **less potent than isotretinoin** for severe, **nodulocystic acne** and may not provide a permanent cure.
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