Powder-burn appearance on laparoscopy is suggestive of:

DSSSB 13 August 2024

Obstetrics & Gynaecology

Easy

Appeared in: DSSSB 13 August 2024

Explanation

The term 'powder-burn' appearance is a classic visual sign observed during laparoscopy.
These lesions are small, pigmented (black, dark-brown, or bluish) spots found on the peritoneum, ovaries, or uterosacral ligaments.
They represent ectopic endometrial implants that have bled, leaving behind hemosiderin-laden macrophages, which gives them their characteristic dark color.
Laparoscopy with biopsy is considered the gold standard for the definitive diagnosis of endometriosis, allowing for direct visualization and tissue confirmation.

Option A: Uterine prolapse is the descent of the uterus into the vagina. It is a diagnosis made by clinical physical examination, not by a specific laparoscopic appearance like 'powder-burn' lesions.
Option B: A hydatidiform mole is a gestational trophoblastic disease. Its classic sign is a 'snowstorm' or 'bunch of grapes' appearance on ultrasound, accompanied by markedly elevated β-hCG levels.
Option D: An ectopic pregnancy is diagnosed by the presence of a gestational sac outside the uterine cavity, typically seen on ultrasound. While it can cause pelvic pain and may be visualized during laparoscopy (often as an adnexal mass or hemoperitoneum), it does not present as 'powder-burn' spots.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of classic laparoscopic findings associated with pelvic endometriosis as background academic context rather than a clinical decision trigger.
Laparoscopy is the definitive method (gold standard) for diagnosing endometriosis. It allows not only for diagnosis but also for simultaneous treatment, such as ablation or excision of the lesions, which can alleviate pain and improve fertility.
Recognizing these classic visual signs is crucial for intraoperative diagnosis and guiding the surgical plan.
What if? If the laparoscopic finding was a swollen, bluish, and tense fallopian tube instead of powder-burn spots, the primary suspicion would shift to a tubal ectopic pregnancy, especially if the patient had a positive pregnancy test.

How to Approach the Question

First, identify the key phrase in the question: 'Powder-burn appearance on laparoscopy'.
Recognize that this is a specific, pathognomonic visual sign used in gynecology.
Recall or deduce the condition associated with this classic description.
Systematically evaluate each option against this key finding:
Uterine prolapse is a physical displacement, not a lesion appearance.
Hydatidiform mole has a 'snowstorm' appearance on ultrasound.

Concept Tested & Keywords

Concept Tested: Identification of classic laparoscopic findings associated with pelvic endometriosis.
Stem keywords: Powder-burn appearance, laparoscopy
Lead-in keywords: suggestive of
Clinical cues: 'Powder-burn appearance' is a classic visual descriptor for endometriotic implants.
Negative lead-in flag: false

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E6 Medicine Harrison 22e Part 2 p. 1040-1042

E6 PATHOLOGY QUICK REVIEWBased on Harsh Mohan Textbook of PATHOLOGY p. 235-237