Endometriosis😍

Endometriosis

Endometriosis

  • Definition: All three components must be present outside uterus.
      1. Glands
      1. Stroma
      1. Hemosiderin

General Points

  • Most common site: Ovary
    • Often as "Chocolate cyst" or "endometrioma"
    • notion image
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    • (molten chocolate appearance from old blood)
  • Other common sites:
    • Posterior cul-de-sac (POD) >
    • Broad ligament (BL) >
    • Uterosacral (US) ligament
  • Least common sites:
    • Spleen
    • Central Nervous System (CNS)
  • Sampson theory of implantation/retrograde menstruation
    • Most accepted theory (Ovary, POD):
  • Halban theory (Umbilicus):
    • Lymphatic spread
  • Ivanoff theory (Distant sites, e.g., lungs):
    • Lymphatic spread
  • Scar endometriosis:
    • Due to direct spread
    • Common after:
      • Episiotomy
      • Caesarean section
      • Hysterotomy
      • Myomectomy
    • Least likely after: Hysterectomy

Symptoms

  • Age group:
    • Reproductive age (25-35 years)
    • Common in nulliparous females
  • Least common in: Pubertal females
    • Note: Suspect Mullerian malformations if in pubertal females
  • Most common symptom: Pain
    • Dysmenorrhea
    • Chronic pelvic pain
    • Dyspareunia
  • Second most common symptom: Infertility
  • Third most common symptom: Adnexal mass
  • Most common cause of Secondary dysmenorrhea
    • Note: Suspect Endometriosis with dysmenorrhea + dyspareunia

Examination Findings

  • P/V exam: Often reveals nothing significant
  • Uterus:
    • May be retroverted and fixed
    • Normal size, non-tender
  • Adnexa:
    • May show bilateral adnexal mass (chocolate cyst)
    • Adnexal tenderness
  • US ligament: May present with nodularity
  • Note:
    • Pain at surgical site increasing during periods suggests scar endometriosis
    • Retroverted uterus → only 2 conditions
      • Uterine Prolapse
      • Endometriosis

Diagnosis of endometriosis

  • 1st investigation: TVS
    • Chocolate cyst may be seen
  • IOC: Laparoscopy
  • Gold Standard: Histopathological Examination (HPE)
  • CA-125 levels: Increased (>100 IU)
  • MRI: Used for bladder and bowel endometriosis
    • Deep rectosigmoid endometriosis: "Mushroom cap sign"

Management of Endometriosis

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Laparoscopic Findings

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  • "Red flame lesions" (new lesions)
  • "Gunshot/powder burn appearance" (older lesions)

1. Dysmenorrhea

  • Minimal/Mild:
    • First line: OCPs
    • If conceiving desired: NSAIDs
    • Second line: Progesterone
    • Third line: GnRH (continuous analogues or antagonists)
    • If all three fail: Laparoscopy
    • Mnemonic: Oh (OCP) Pain (Progest) Girl (Gnrh) Lie (Lap)
  • Moderate/Severe:
    • First line:
      • Continuous GnRH analogues
      • GnRH antagonists
    • If it fails:
      • Laparoscopy
        • Helps in confirming diagnosis.
        • Sampling for HPE.
        • Grading the disease.
        • Laparoscopic pain management:
          • Fulguration of implants.
          • Adhesiolysis.
          • Laparoscopic uterosacral nerve ablation (LUNA).
    • Other drugs:
      • Letrozole
      • Danazol (Side effect: Hirsutism)
    • Theoretically usable (not FDA approved):
      • Mifepristone (causes instant endometrial atrophy)
    • Last resort: Total Abdominal Hysterectomy (TAH) (stops retrograde menstruation)
  • Note: Pain is proportional to depth of lesion
  • Mnemonic for drugs that decrease estrogen:
    • Dominos Pizza Got Late
      • Danazol
      • Progesterone
      • GnRH
      • Letrozole

2. Endometrioma (Chocolate Cyst)

  • Thick walled
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  • First investigation:
    • TVS (rules out other disorders)
      • Ground glass echogenicity
      • Homogenous Internal Echoes
      • Ground glass echogenicity
        Ground glass echogenicity
  • If patient desires pregnancy:
    • Do not treat (conservatively managed)
    • Pregnancy rates
      • 60% in moderate disease
      • 35% in severe disease
  • If patient does not desire pregnancy:
    • Asymptomatic and <5 cm:
      • Follow-up with USG
    • Asymptomatic and ≥5 cm or symptomatic cyst:
      • Laparoscopic cystectomy + HPE

3. Infertility

  • Minimal/Mild symptoms
    • taken as unexplained infertility:
      • IUI (Intrauterine Insemination)
      • Clomiphene citrate
  • Mod/severe symptoms
    • Infertility due to tubal block:
      • IVF (In vitro fertilization)