Soru

Zorluk: KolayInfectious Diseases

Match each sexually transmitted pathogen with its characteristic primary clinical presentation.

  • Treponema pallidumSingle painless, indurated genital ulcer with a clean base and bilateral non-tender lymphadenopathy
  • Haemophilus ducreyiMultiple painful, deep genital ulcers with a purulent base and tender inguinal lymphadenopathy
  • Klebsiella granulomatisPainless, progressive, beefy-red vascular genital ulcer bleeding easily on contact, without associated lymphadenopathy
  • Chlamydia trachomatis (serovars L1-L3)Transient small painless genital ulcer followed weeks later by painful, fluctuant inguinal lymphadenopathy (buboes)

Cevap

Treponema pallidum pairs with the painless indurated ulcer; Haemophilus ducreyi with the painful purulent ulcer; Klebsiella granulomatis with the painless beefy-red ulcer without lymphadenopathy; and Chlamydia trachomatis L1-L3 with the transient ulcer followed by fluctuant buboes.
Genital ulcer diseases are classic presentations that must be differentiated clinically. Treponema pallidum causes primary syphilis, noted for a painless chancre with a clean base. Haemophilus ducreyi causes chancroid, which produces a painful, purulent ulcer with tender nodes. Klebsiella granulomatis causes donovanosis, resulting in a painless, beefy-red, highly vascular ulcer without associated lymphadenopathy. Finally, Chlamydia trachomatis L1-L3 causes lymphogranuloma venereum, starting as a painless transient ulcer and eventually causing painful buboes.

Adım Adım Çözüm

1
Identify the presence or absence of pain for each ulcer description.
Painful ulcers suggest Haemophilus ducreyi. Painless ulcers suggest Treponema, Klebsiella, or Chlamydia.
Pain is the primary differentiating clinical feature for the initial evaluation of genital ulcers.
2
Differentiate the painless ulcers based on lymphadenopathy and ulcer appearance.
Indurated with non-tender nodes is Treponema. Beefy-red without nodes is Klebsiella. Transient ulcer with severe fluctuant buboes is Chlamydia L1-L3.
Associated features like lymph node characteristics and the macroscopic appearance of the ulcer base definitively isolate the specific pathogen.

Anahtar Kavram

Differentiating genital ulcer diseases by pain profile, ulcer characteristics, and lymphadenopathy.
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