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{{WBRQuestion
{{WBRQuestion
|QuestionAuthor={{YD}} (Reviewed by {{YD}})
|QuestionAuthor= {{YD}} (Reviewed by {{YD}})
|ExamType=USMLE Step 1
|ExamType=USMLE Step 1
|MainCategory=Pathology
|MainCategory=Pathology
Line 21: Line 21:
|MainCategory=Pathology
|MainCategory=Pathology
|SubCategory=Dermatology
|SubCategory=Dermatology
|Prompt=A 28-year-old man presents to the dermatology clinic with a lesion on his right hand. Upon further questioning, he informs the physician that he sustained a burn to the dorsum of his hand at the site of the lesion one year ago. On physical examination, the physician notes a raised lesion shown in the image below. Which of the following is an appropriate treatment option for this patient's condition?
|Prompt=A 28-year-old man presents to the dermatology clinic with a lesion on his left forearm. Upon further questioning, he informs the physician that he sustained 2 burns in his left forearm 1 year ago; and the current lesions developed at the sites of the previous burn wounds. On physical examination, the physician notes 2 raised pink lesions along the left forearm as shown in the image below. Which of the following is an appropriate therapeutic option for this patient's condition?


[[Image:WBR0843.jpg|500px]]
[[Image:WBR0843question.jpg|500px]]
|Explanation=The patient is presenting with a keloid scar. Hypertrophic scars and keloids are characterized by the high rates of recurrence following excision by surgery. Treatment options for keloids are numerous with varying rates of success. Intralesional corticosteroids are considered the mainstay of therapy for hypertrophic keloid scars. Other first line options include silicone sheeting and pressure dressingss, whereas ptients with smaller lesions may benefit from cryotherapy. Surgical resection is reserved for large scars that are unlikely to improve with any first line treatment option. However, surgical excision alone exacerbates the keloid scar. Thus, surgery must be combined with other treatment modalities, such as radiotherapy, pulsed dye lasers, or imiquimod creams. Novel therapies are currently emerging for the treatment of established keloid scars, including intalesional calcium channel blockers, such as verapamil, and chemotherapeutic agents, such as fluorouracil and bleomycin injections.
|Explanation=The patient is presenting with a hypertrophic scar. While intralesional corticosteroids are treatment options for both hypertrophic scars and keloids, simple excision alone is often considered a first line therapeutic option for patients with hypertrophic scar, but not keloids. The following table compares hypertrophic scars with keloids and demonstrates the optimal therapeutic options for both lesions.


|AnswerA=Intralesional corticosteroids
[[Image:Hypertrophic Scar vs. Keloid Comparison Table (Lesion morphology, margins, evolution, collagen, locations, composition, management).png|800px]]
|AnswerAExp=Intralesional corticosteroids are first line therapeutic options for the treatment of keloid scars.
|AnswerA=Simple excision
|AnswerAExp=Simple excision alone is often considered a first line therapeutic option for patients with hypertrophic scar, but not keloids.
|AnswerB=Systemic corticosteroids
|AnswerB=Systemic corticosteroids
|AnswerBExp=Systemic corticosteroids are not helpful for the treatment of keloid scars.
|AnswerBExp=Systemic corticosteroids are not helpful for the treatment of hypertrophic scars or keloids.
|AnswerC=Topical corticosteroids
|AnswerC=Topical corticosteroids
|AnswerCExp=Topical corticosteroids are not helpful for the treatment of keloid scars.
|AnswerCExp=Topical corticosteroids are not helpful for the treatment of hypertrophic scars or keloids.
|AnswerD=Systemic antibiotics
|AnswerD=Neoadjuvant radiotherapy
|AnswerDExp=Antibiotics are not helpful for the treatment of keloid scars.
|AnswerDExp=Hypertrophic scars do not usually require radiotherapy. For keloids, neither neoadjuvant (before surgery) radiotherapy nor radiotherapy alone is a good therapeutic option. Instead, adjuvant radiotherapy (following intramarginal excision) is often useful.
|AnswerE=Systemic chemotherapy
|AnswerE=Systemic chemotherapy
|AnswerEExp=Intralesional chemotherapy is effective for the treatment of keloid scars. In contrast, systemic chemotherapy is not a therapeutic option for keloid scars.
|AnswerEExp=Intralesional chemotherapy may be effective for the treatment of hypertrophic scars or keloids. In contrast, systemic chemotherapy is not a therapeutic option for hypertrophic scars or keloids
|EducationalObjectives=Intralesional corticosteroids are helpful as first line agents for treatment of keloid scars.
|EducationalObjectives=Simple excision alone is often considered a first line therapeutic option for patients with hypertrophic scar, but not keloids.
|References=Juckett G, Hartmann-Adams H. Management of keloids and hypertrophic scars. Am Fam Physicians. 2009;80(3):253-260.
|References=Wolfram D, Tzankov A, Pülzl P, et al. Hypertrophic scars and keloids - a review of their pathophysiology, risk factors, and therapeutic management. Dermatol Surg. 2009;35(2):171-81.
Juckett G, Hartmann-Adams H. Management of keloids and hypertrophic scars. Am Fam Physicians. 2009;80(3):253-260.<br>
Image: "Hypertrophic scar -4 months after incident- 2013-04-05 00-46.jpg" by user:Cgomez447, licensed under Creative Commons Attribution-Share Alike 3.0 Unported license. http://commons.wikimedia.org/ retrieved 1-Jan-2015.<br>
First Aid 2014 page 225
|RightAnswer=A
|RightAnswer=A
|WBRKeyword=Keloid, Scar, Intralesional corticosteroids, CorticosteroidS, Steroids, Treatment, Burn
|WBRKeyword=Hypertrophic scar, Keloid, Scar, Intralesional corticosteroids, Corticosteroids, Steroids, Treatment, Burn
|Approved=No
|Approved=No
}}
}}

Latest revision as of 01:51, 28 October 2020

 
Author [[PageAuthor::Yazan Daaboul, M.D. (Reviewed by Yazan Daaboul, M.D.)]]
Exam Type ExamType::USMLE Step 1
Main Category MainCategory::Pathology
Sub Category SubCategory::Dermatology
Prompt [[Prompt::A 28-year-old man presents to the dermatology clinic with a lesion on his left forearm. Upon further questioning, he informs the physician that he sustained 2 burns in his left forearm 1 year ago; and the current lesions developed at the sites of the previous burn wounds. On physical examination, the physician notes 2 raised pink lesions along the left forearm as shown in the image below. Which of the following is an appropriate therapeutic option for this patient's condition?

]]

Answer A AnswerA::Simple excision
Answer A Explanation AnswerAExp::Simple excision alone is often considered a first line therapeutic option for patients with hypertrophic scar, but not keloids.
Answer B AnswerB::Systemic corticosteroids
Answer B Explanation AnswerBExp::Systemic corticosteroids are not helpful for the treatment of hypertrophic scars or keloids.
Answer C AnswerC::Topical corticosteroids
Answer C Explanation AnswerCExp::Topical corticosteroids are not helpful for the treatment of hypertrophic scars or keloids.
Answer D AnswerD::Neoadjuvant radiotherapy
Answer D Explanation [[AnswerDExp::Hypertrophic scars do not usually require radiotherapy. For keloids, neither neoadjuvant (before surgery) radiotherapy nor radiotherapy alone is a good therapeutic option. Instead, adjuvant radiotherapy (following intramarginal excision) is often useful.]]
Answer E AnswerE::Systemic chemotherapy
Answer E Explanation AnswerEExp::Intralesional chemotherapy may be effective for the treatment of hypertrophic scars or keloids. In contrast, systemic chemotherapy is not a therapeutic option for hypertrophic scars or keloids
Right Answer RightAnswer::A
Explanation [[Explanation::The patient is presenting with a hypertrophic scar. While intralesional corticosteroids are treatment options for both hypertrophic scars and keloids, simple excision alone is often considered a first line therapeutic option for patients with hypertrophic scar, but not keloids. The following table compares hypertrophic scars with keloids and demonstrates the optimal therapeutic options for both lesions.


Educational Objective: Simple excision alone is often considered a first line therapeutic option for patients with hypertrophic scar, but not keloids.
References: Wolfram D, Tzankov A, Pülzl P, et al. Hypertrophic scars and keloids - a review of their pathophysiology, risk factors, and therapeutic management. Dermatol Surg. 2009;35(2):171-81. Juckett G, Hartmann-Adams H. Management of keloids and hypertrophic scars. Am Fam Physicians. 2009;80(3):253-260.
Image: "Hypertrophic scar -4 months after incident- 2013-04-05 00-46.jpg" by user:Cgomez447, licensed under Creative Commons Attribution-Share Alike 3.0 Unported license. http://commons.wikimedia.org/ retrieved 1-Jan-2015.
First Aid 2014 page 225]]

Approved Approved::No
Keyword WBRKeyword::Hypertrophic scar, WBRKeyword::Keloid, WBRKeyword::Scar, WBRKeyword::Intralesional corticosteroids, WBRKeyword::Corticosteroids, WBRKeyword::Steroids, WBRKeyword::Treatment, WBRKeyword::Burn
Linked Question Linked::
Order in Linked Questions LinkedOrder::