Acne and Related Disorders Practice Questions

Q: A 25-year-old girl presents with papules, erythema and telangiectasia over the face as shown below. She also gives a history of flushing and burning sensation on exposure to sun and on any emotional disturbance. The most likely diagnosis is? (AIIMS Nov 2016)

Rosacea. ***Correct: Rosacea*** - The presentation of **facial erythema**, **papules**, **telangiectasias**, and chronic **flushing with burning sensation** in response to triggers like sun exposure or emotional stress is highly characteristic of rosacea. - Rosacea typically affects the **central face**, sparing the perioral and periorbital areas (though not always strictly) and lacks the **comedones** seen in acne. - This is a classic presentation that distinguishes rosacea from other facial dermatoses. *Incorrect: Acne vulgaris* - While acne can present with papules and erythema, it is primarily characterized by the presence of **comedones** (blackheads and whiteheads), which are absent in rosacea. - Acne flushing is less common and is not typically triggered by emotional changes or sun exposure in the same way as rosacea. *Incorrect: Systemic lupus erythematosus* - SLE can cause facial rashes, most notably the **malar "butterfly" rash**, but it is generally an erythematous rash, and typical features like papules, pustules, and prominent telangiectasias are less common. - Systemic symptoms like **arthralgia**, **fatigue**, and photosensitivity are usually present in SLE. *Incorrect: Scabies* - Scabies presents with intensely **pruritic papules**, vesicles, and burrows, typically in interdigital spaces, wrists, elbows, and genitals, and rarely primarily on the face in adults. - The characteristic symptoms of flushing and telangiectasia are not associated with scabies infestation.

Q: A young boy with oily skin presents with acne as shown. What is the appropriate treatment?

Topical retinoic acid. ***Topical retinoic acid*** - The image shows **comedonal acne** with numerous small bumps, which typically responds well to topical retinoids like retinoic acid. - **Topical retinoids** work by normalizing follicular keratinization and reducing comedone formation, making them the **first-line treatment** for comedonal and mild to moderate inflammatory acne. - Retinoids are superior to other agents for comedonal acne due to their comedolytic properties. *Oral isotretinoin* - **Oral isotretinoin** is reserved for **severe cystic or nodular acne**, or acne that is unresponsive to other treatments, which does not appear to be the case here. - It has significant side effects and requires close monitoring, making it inappropriate for the initial treatment of mild to moderate acne. *Oral steroid* - **Oral steroids** are not a primary treatment for acne and are usually reserved for severe, **fulminant acne** (like acne conglobata) or to manage acute exacerbations of inflammatory acne due to their numerous side effects. - Their primary role is potent **anti-inflammatory action**, but they do not address the underlying pathogenesis of acne. *Benzoyl peroxide* - **Benzoyl peroxide** is effective against **inflammatory acne** due to its antibacterial and keratolytic properties. - While it can be used for comedonal acne and is often combined with retinoids for enhanced efficacy, **topical retinoids are preferred as monotherapy** for predominantly comedonal acne as shown in this image. - Benzoyl peroxide is particularly useful when there are inflammatory lesions (papules, pustules) present.

Q: What does the given image show?

Acne conglobata. ***Acne conglobata*** - The image shows numerous interconnected cysts, abscesses, nodules, and irregular scarring, which are characteristic features of **acne conglobata**, a severe form of acne. - This condition is often associated with significant inflammation and can lead to extensive **disfiguring scars**. *Acne vulgaris* - This is the most common type of acne and typically presents with **comedones (blackheads and whiteheads)**, papules, and pustules. - It does not usually involve the widespread interconnected cysts, abscesses, and severe scarring seen in the image. *Acne venenata* - This term refers to acne caused by **external chemical irritants** or occupational exposure. - While it can manifest with various acne lesions, the morphology in the image, characterized by deep, interconnected lesions and extensive scarring, does not specifically suggest an external cause. *Acne fulminans* - This is an **acute, severe, and rare form of acne** characterized by the sudden onset of widespread nodular and ulcerative lesions, often accompanied by systemic symptoms like fever and joint pain. - Although very severe, acne fulminans typically presents with **ulcerative and hemorrhagic lesions**, which are not the predominant features shown in the image, where interconnected cysts and scarring are more prominent.

Q: All are true about the condition shown in the figure except: (Recent NEET Pattern 2016-17)

Interconnecting sinus tracts. ***Interconnecting sinus tracts*** - This is a characteristic feature of **Acne Conglobata**, NOT rhinophyma. Acne conglobata is a severe form of nodulocystic acne characterized by multiple interconnected comedones, abscesses, cysts, and draining sinus tracts, typically affecting the trunk, face, and neck. - **Rhinophyma** is a severe manifestation of rosacea involving progressive hypertrophy of sebaceous glands and connective tissue of the nose, producing a bulbous, enlarged appearance. It does **not** feature interconnecting sinus tracts. - This is the FALSE statement about rhinophyma, making it the correct answer for this "except" question. *Patulous pilo-sebaceous orifices* - This is a **hallmark feature of rhinophyma**. The sebaceous gland hyperplasia leads to markedly **dilated follicular openings** (patulous orifices) on the nasal surface. - These prominent, enlarged pores are a key diagnostic sign and contribute to the characteristic cobblestone appearance of the affected nose. *Foul smelling cheesy material* - The hypertrophied sebaceous glands in **rhinophyma** produce excessive sebum which accumulates in the dilated follicular openings. - This material consists of **keratin plugs, sebum, and bacterial debris**, often presenting as a foul-smelling, cheesy substance that can be expressed from the enlarged pores. *Can lead to difficulty in breathing* - **TRUE for severe rhinophyma**. Progressive nasal tissue hypertrophy can cause **external nasal valve obstruction** and narrowing of the nasal airways, leading to breathing difficulties. - Severe cases may require **surgical intervention** (e.g., laser therapy, surgical excision) not only for cosmetic reasons but also to relieve nasal obstruction and improve airflow. - This is a recognized complication documented in dermatology and otolaryngology literature.

Q: The image is diagnostic of?

Fox Fordyce disease. ***Fox-Fordyce disease*** - The image shows **multiple, firm, dome-shaped papules** primarily affecting the axillary and genitofemoral regions. - These lesions often arise from **blocked apocrine sweat ducts** and are typically intensely pruritic, a common presentation of Fox-Fordyce disease. *Acne fulminans* - This condition is characterized by an **acute onset of severe, nodulocystic acne lesions** with ulceration, hemorrhagic crusts, and systemic symptoms like fever and arthritis. - The image does not display the extensive inflammation, ulceration, or typical clinical features of acne fulminans. *Acne conglobata* - Acne conglobata presents with interconnected **comedones, cysts, abscesses, and sinus tracts**, often leading to significant scarring. - While it can be severe, the individual lesions pictured are less inflammatory and interconnected than typically seen in acne conglobata. *Hidradenitis Suppurativa* - Hidradenitis suppurativa is characterized by **recurrent painful nodules, abscesses, and sinus tracts**, predominantly in intertriginous areas (axillae, groin, gluteal folds). - Although the location is similar to the image, the lesions in hidradenitis suppurativa are typically larger, more inflamed, and often result in extensive scarring and drainage, which is not the primary feature here.

Q: A 25-year-old female presents with the following lesions in the axilla, as shown by the arrow:

Hidradenitis Suppurativa. ***Hidradenitis Suppurativa*** - This image displays typical features of Hidradenitis Suppurativa, including **inflamed nodules**, **abscesses**, and **sinus tracts** in the intertriginous region (axilla in this case). - The disease commonly affects areas with **apocrine glands** and is characterized by chronic inflammation and scarring. *Fox-Fordyce disease* - This condition involves an **obstruction of apocrine sweat ducts**, leading to pruritic papules in apocrine gland-bearing areas. - While it affects similar anatomical locations as hidradenitis suppurativa, it does not typically present with the same degree of inflammation, deep nodules, abscesses, or sinus tracts. *Acne fulminans* - This is a rare and severe form of **acne vulgaris** characterized by the sudden onset of aggressive, ulcerative, and extensively inflamed nodules, cysts, and plaques with systemic symptoms like fever and arthralgia. - It primarily affects the **face, chest, and back**, not typically the axilla, and is associated with systemic inflammation. *Acne conglobata* - A severe form of **nodulocystic acne** characterized by interconnected abscesses, cysts, and sinus tracts, often leaving significant scarring. - While it involves extensive inflammation and sinus tracts, it primarily affects the **trunk and face**, not characteristically the axilla as the primary site of presentation in images like this.

Q: A young male smoker presents with long standing history of lesions in axilla. All are correct about the image shown below except:

Patulous pilo-sebaceous orifices. ***Patulous pilo-sebaceous orifices*** - **Hidradenitis suppurativa** (HS) is characterized by **follicular occlusion** and inflammation, leading to sinus tracts and abscesses, not patulous (widened) orifices. The initial lesion in HS is a follicular blockage, typically of the terminal hair follicle. - While HS is a disease of the **folliculopilosebaceous unit**, the primary problem is occlusion and rupture, not abnormally wide openings. *Hurley staging* - **Hurley staging** is a widely used clinical classification system for assessing the severity of hidradenitis suppurativa, ranging from stage I (isolated abscesses) to stage III (diffuse involvement with interconnected tracts and abscesses). - This staging helps guide management and prognosis for patients with HS. *Hidradenitis suppurativa* - The image displays classic features of **hidradenitis suppurativa**, including recurrent painful nodules, abscesses, and complex scarring with sinus tracts in the axilla, a common site for the condition. - The patient's history of being a **smoker** and having **long-standing lesions** in the axilla is highly consistent with risk factors and typical presentation of HS. *Topical clindamycin* - **Topical clindamycin** is a common first-line treatment for mild to moderate **hidradenitis suppurativa** (Hurley stage I and early stage II) to reduce bacterial colonization and inflammation. - It is used in conjunction with other management strategies, including hygiene, lifestyle modifications, and sometimes systemic medications or surgical intervention for more severe cases.

Q: A patient presents with 1-year history of painful nodulocystic acne as shown in the image. Which of the following is the drug of choice for this case?

Oral isotretinoin. ***Oral isotretinoin*** - This patient presents with severe **nodulocystic acne**, which is characterized by deep, painful lesions that often lead to scarring, and has been present for 1 year. Oral isotretinoin is the **drug of choice** for severe, recalcitrant nodulocystic acne due to its ability to target all four pathogenic factors of acne. - Isotretinoin reduces **sebum production**, normalizes follicular keratinization, decreases *P. acnes* colonization, and has anti-inflammatory effects, making it highly effective for severe cases. *Topical clindamycin* - **Topical clindamycin** is an antibiotic primarily used for mild to moderate inflammatory acne, particularly papules and pustules. - It is **insufficient** for severe nodulocystic acne due to its limited penetration and inability to address the deeper, more severe inflammation and scarring potential. *Topical adapalene* - **Topical adapalene** is a retinoid used for mild to moderate comedonal and inflammatory acne. It helps normalize follicular keratinization and has anti-inflammatory properties. - While effective for less severe acne, it is generally **not potent enough** to treat severe nodulocystic acne effectively, especially given its chronic nature as described. *Oral doxycycline* - **Oral doxycycline** is a systemic antibiotic used for moderate to severe inflammatory acne, primarily due to its anti-inflammatory properties and its effect on reducing *P. acnes*. - Although it can be used for severe acne, it is **less effective** than oral isotretinoin for nodulocystic acne, especially in the long-term, and does not address the underlying pathogenesis (like sebaceous gland activity) as comprehensively as isotretinoin.

Q: An obese 45-year-old lady who is a chronic smoker came with tender subcutaneous nodules with chronic inflammation with scarring under her left axilla. She is likely to be suffering from:

Hidradenitis suppurativa. ***Hidradenitis suppurativa*** - This condition commonly presents with **tender subcutaneous nodules**, chronic inflammation, and scarring, typically in **intertriginous areas** such as the axillae. - Risk factors like **obesity** and **smoking** are highly associated with its development and severity. *Xeroderma pigmentosum* - This is a rare genetic disorder characterized by extreme **photosensitivity** and a high risk of **skin cancer** due to defective DNA repair. - It does not present with tender subcutaneous nodules or chronic inflammation in the axillae. *Pyoderma gangrenosum* - This condition is characterized by rapidly enlarging, painful **ulcerative skin lesions** with undermined borders, not primarily by subcutaneous nodules. - It is often associated with systemic diseases like **inflammatory bowel disease** or **rheumatoid arthritis**. *Lipodystrophy* - This refers to a group of disorders characterized by the selective **loss of adipose tissue**, which can be generalized or partial. - It does not typically involve tender, inflamed subcutaneous nodules or the formation of scars in the axilla.

Q: Which of the following is the causative agent for acne fulminans?

Propionibacterium acnes (Cutibacterium acnes). ***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 1

A 25-year-old girl presents with papules, erythema and telangiectasia over the face as shown below. She also gives a history of flushing and burning sensation on exposure to sun and on any emotional disturbance. The most likely diagnosis is? (AIIMS Nov 2016)

Accepted Answer

Rosacea

Answer

Acne vulgaris

Answer

Systemic lupus erythematosus

Answer

Scabies

Question 2

A young boy with oily skin presents with acne as shown. What is the appropriate treatment?

Accepted Answer

Topical retinoic acid

Answer

Oral isotretinoin

Answer

Oral steroid

Answer

Benzoyl peroxide

Question 3

What does the given image show?

Accepted Answer

Acne conglobata

Answer

Acne vulgaris

Answer

Acne venenata

Answer

Acne fulminans

Question 4

All are true about the condition shown in the figure except: (Recent NEET Pattern 2016-17)

Accepted Answer

Interconnecting sinus tracts

Answer

Patulous pilo-sebaceous orifices

Answer

Foul smelling cheesy material

Answer

Can lead to difficulty in breathing

Question 5

The image is diagnostic of?

Accepted Answer

Fox Fordyce disease

Answer

Acne fulminans

Answer

Acne conglobata

Answer

Hidradenitis Suppurativa

Question 6

A 25-year-old female presents with the following lesions in the axilla, as shown by the arrow:

Accepted Answer

Hidradenitis Suppurativa

Answer

Acne fulminans

Answer

Acne conglobata

Answer

Fox-Fordyce disease

Question 7

A young male smoker presents with long standing history of lesions in axilla. All are correct about the image shown below except:

Accepted Answer

Patulous pilo-sebaceous orifices

Answer

Hurley staging

Answer

Hidradenitis suppurativa

Answer

Topical clindamycin

Question 8

A patient presents with 1-year history of painful nodulocystic acne as shown in the image. Which of the following is the drug of choice for this case?

Accepted Answer

Oral isotretinoin

Answer

Topical clindamycin

Answer

Topical adapalene

Answer

Oral doxycycline

Question 9

An obese 45-year-old lady who is a chronic smoker came with tender subcutaneous nodules with chronic inflammation with scarring under her left axilla. She is likely to be suffering from:

Accepted Answer

Hidradenitis suppurativa

Answer

Xeroderma pigmentosum

Answer

Pyoderma gangrenosum

Answer

Lipodystrophy

Question 10

Which of the following is the causative agent for acne fulminans?

Accepted Answer

Propionibacterium acnes (Cutibacterium acnes)

Answer

Staphylococcus aureus

Answer

Malassezia furfur

Answer

Streptococcus pyogenes

Acne and Related Disorders — MCQs

Acne and Related Disorders — MCQs

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