Uterine Factors — MCQs
What is the investigation of choice in congenital uterine anomalies?
Which investigation would be more appropriate in a 32-year-old nulliparous patient who presents to the gynecology OPD due to inability to conceive, having undergone uterine dilatation and curettage for menorrhagia not controlled medically around 4 years ago, and who is otherwise healthy on general examination?
What type of uterine anomaly is shown in this X-ray HSG image?
Intrauterine adhesions best seen by?
In a patient with secondary amenorrhea, failure to experience withdrawal bleeding after administration of estrogen and progesterone indicates dysfunction of which structure?
True about endometriosis:
A 29 year old female presented with infertility. There is history of abdominal pain, dyspareunia, dysmenorrhea, menorrhagia. Most likely cause:
What are the primary indications for in vitro fertilization (IVF)?
A 28-year old woman comes with infertility. Husband's semen analysis is normal. Endometrial biopsy shows secretory changes with no evidence of tuberculosis. On hysterosalpingography both tubes show tubal blockage. What should be the next step in management?
How do chlamydial infections lead to fallopian tube damage and infertility?
Uterine Factors Indian Medical PG Practice Questions and MCQs
Question 1: What is the investigation of choice in congenital uterine anomalies?
- A. Hysteroscopy
- B. MRI (Correct Answer)
- C. CT
- D. HSG
Explanation: ***MRI*** - **Magnetic Resonance Imaging (MRI)** is considered the gold standard for diagnosing congenital uterine anomalies due to its excellent soft tissue contrast. - It provides detailed, multiplanar views of the uterine anatomy, allowing for precise classification of the anomaly and visualization of associated renal anomalies. *CT* - **Computed Tomography (CT)** involves ionizing radiation and offers less detailed soft tissue differentiation compared to MRI, particularly for complex uterine structures. - While it can identify gross abnormalities, it is less effective for the fine anatomical detail required for classifying uterine anomalies. *HSG* - **Hysterosalpingography (HSG)** is an X-ray procedure that uses contrast dye to visualize the uterine cavity and fallopian tubes. - While useful for assessing uterine contour and tubal patency, it only provides a 2D view and cannot reliably differentiate between certain anomalies like a **septate versus a bicornuate uterus**. *Hysteroscopy* - **Hysteroscopy** is a direct visualization technique of the uterine cavity. - It is excellent for diagnosing and treating intrauterine pathologies such as **polyps, fibroids, or septa**, but it usually does not provide information about the external uterine contour or associated anomalies, which are crucial for full evaluation of congenital anomalies.
Question 2: Which investigation would be more appropriate in a 32-year-old nulliparous patient who presents to the gynecology OPD due to inability to conceive, having undergone uterine dilatation and curettage for menorrhagia not controlled medically around 4 years ago, and who is otherwise healthy on general examination?
- A. Laparoscopy
- B. Hysterosalpingography (Correct Answer)
- C. CT scan of abdomen and pelvis
- D. X-ray of pelvis
Explanation: ***Hysterosalpingography*** - This procedure uses **X-rays** and **contrast dye** to visualize the inside of the uterus and fallopian tubes, which is crucial for assessing **tubal patency** and uterine cavity abnormalities. - Given the patient's history of **dilatation and curettage (D&C)**, there is a risk of **Asherman's syndrome** (intrauterine adhesions), which hysterosalpingography can effectively diagnose. *Laparoscopy* - While laparoscopy can provide a direct visual assessment of pelvic organs and tubal patency, it is a **more invasive** surgical procedure with associated risks. - It is typically reserved for cases where less invasive tests like hysterosalpingography are inconclusive or suggest abnormalities requiring surgical intervention. *CT scan of abdomen and pelvis* - A CT scan is primarily used for evaluating **soft tissue structures** and detecting tumors or masses, but it is not the most appropriate initial investigation for assessing uterine cavity or fallopian tube patency in fertility workup. - It involves significant radiation exposure and provides **limited detail** compared to hysterosalpingography for the specific concerns in this patient. *X-ray of pelvis* - A standard X-ray of the pelvis offers a general view of **bone structures** and gross abnormalities but provides no information about the patency of the fallopian tubes or the morphology of the uterine cavity. - It is completely unsuitable for evaluating the causes of infertility related to uterine or tubal factors.
Question 3: What type of uterine anomaly is shown in this X-ray HSG image?
- A. Septate uterus
- B. Uterus didelphys
- C. Unicornuate uterus (Correct Answer)
- D. Bicornuate uterus
Explanation: ***Unicornuate uterus*** - The image shows a single, elongated uterine horn with a single fallopian tube arising from it, consistent with a **unicornuate uterus**. - This congenital anomaly results from the **failure of one Müllerian duct to develop**, leading to an abnormally shaped uterus. *Septate uterus* - A **septate uterus** would show a normal uterine fundus with an internal septum dividing the uterine cavity. - This image clearly depicts only **one rudimentary horn** and no visible septum. *Uterus didelphys* - **Uterus didelphys** involves two completely separate uteri, each with its own cervix and vagina. - The image does not show evidence of a **second, separate uterine structure**. *Bicornuate uterus* - A **bicornuate uterus** is characterized by two distinct uterine horns, which fuse at the cervix or lower uterine segment, creating a heart-shaped appearance of the fundus. - The image shows a **single, long horn** rather than two distinct horns.
Question 4: Intrauterine adhesions best seen by?
- A. Hysteroscopy (Correct Answer)
- B. Ultrasound
- C. Computed Tomography
- D. Magnetic Resonance Imaging
Explanation: ***Hysteroscopy*** - **Hysteroscopy** provides direct visualization of the uterine cavity, allowing for precise identification and characterization of **intrauterine adhesions (IUA)** or **Asherman's syndrome**. - It not only diagnoses IUAs but also allows for simultaneous treatment through **adhesiolysis**, making it the gold standard for both diagnosis and management. *Ultrasound* - While ultrasound can sometimes suggest the presence of adhesions through abnormal endometrial appearances or fluid collections, it is generally **not definitive** for diagnosing IUAs. - Its sensitivity is limited, especially for subtle or fine adhesions, and it often requires confirmation by other methods. *Computed Tomography* - **Computed Tomography (CT)** scans are generally **not used** for the diagnosis of intrauterine adhesions. - CT provides limited soft tissue contrast in the endometrial cavity and exposes the patient to **ionizing radiation**, without offering a clear advantage over other imaging modalities. *Magnetic Resonance Imaging* - **Magnetic Resonance Imaging (MRI)** can provide good soft tissue detail and may visualize severe adhesions, but it is **not as sensitive or specific** as hysteroscopy for detecting all types of IUAs. - MRI is more expensive and less accessible than hysteroscopy, and it does not allow for immediate therapeutic intervention.
Question 5: In a patient with secondary amenorrhea, failure to experience withdrawal bleeding after administration of estrogen and progesterone indicates dysfunction of which structure?
- A. Pituitary
- B. Hypothalamus
- C. Ovary
- D. Endometrium (Correct Answer)
Explanation: ***Endometrium*** - If the **endometrium** fails to respond to **estrogen and progesterone therapy**, it suggests a problem with the uterine lining itself, such as **Asherman's syndrome** or severe endometrial atrophy. - In such cases, despite adequate hormonal stimulation, there is **no withdrawal bleeding** because the target tissue (endometrium) cannot proliferate or shed. *Pituitary* - A **dysfunctional pituitary gland** would typically cause secondary amenorrhea by failing to produce adequate **gonadotropins (LH and FSH)**, which in turn leads to ovarian dysfunction. - However, in this scenario, if the pituitary were the primary issue, providing exogenous **estrogen and progesterone** would likely still induce withdrawal bleeding if the uterus is responsive. *Hypothalamus* - The **hypothalamus** controls pituitary function by releasing **GnRH**. Hypothalamic dysfunction (e.g., due to stress, extreme exercise, or weight loss) causes **hypogonadotropic hypogonadism**. - While it's a common cause of secondary amenorrhea, exogenous **estrogen and progesterone** should still induce withdrawal bleeding if the uterus is healthy and responsive. *Ovary* - **Ovarian failure** (e.g., premature ovarian insufficiency) leads to low **estrogen** and **high FSH/LH** levels. - If the ovaries are the cause, administering **estrogen and progesterone** would typically induce withdrawal bleeding because the uterus is usually functional and responsive to these hormones.
Question 6: True about endometriosis:
- A. Presence of endometrial gland in deep myometrium
- B. Presence of endometrium at ectopic locations (Correct Answer)
- C. Treated preferably with hysterectomy
- D. Seen in multiparous women
Explanation: ***Presence of endometrium at ectopic locations*** - **Endometriosis** is defined as the presence of endometrial glands and stroma outside of the uterine cavity. - These ectopic endometrial implants respond to hormonal changes, leading to cyclical pain and inflammation. *Presence of endometrial gland in deep myometrium* - This describes **adenomyosis**, a condition where endometrial tissue invades the muscular wall of the uterus (myometrium). - While both can cause pelvic pain, endometriosis specifically refers to endometrial tissue *outside* the uterus. *Treated preferably with hysterectomy* - Hysterectomy is a definitive treatment option, especially for severe cases or when fertility is not desired, but it is not the *preferred* initial treatment for all patients. - Initial management often includes **pain relievers**, **hormonal therapy**, or **laparoscopic excision** of endometriotic implants. *Seen in multiparous women* - Endometriosis is more commonly diagnosed in **nulliparous (never given birth)** or women who delay childbearing. - While it can occur in multiparous women, it is not a characteristic association.
Question 7: A 29 year old female presented with infertility. There is history of abdominal pain, dyspareunia, dysmenorrhea, menorrhagia. Most likely cause:
- A. Adenomyosis
- B. Endometriosis (Correct Answer)
- C. Cervicitis
- D. Myomas
Explanation: ***Endometriosis*** - The classic triad of symptoms in this 29-year-old female—**dysmenorrhea**, **dyspareunia**, and **infertility**—is highly suggestive of endometriosis. - **Ectopic endometrial tissue** can cause chronic abdominal pain, menorrhagia, and inflammation, contributing to infertility. *Adenomyosis* - This condition involves the presence of **endometrial tissue within the myometrium**, leading to a thickened uterine wall. - While it can cause dysmenorrhea and menorrhagia, **infertility** is not its primary presentation, and it is less commonly associated with severe dyspareunia compared to endometriosis. *Cervicitis* - **Inflammation of the cervix** typically presents with vaginal discharge, post-coital bleeding, or pelvic pain. - It is not a common cause of primary infertility, severe dysmenorrhea, or dyspareunia as described. *Myomas* - Uterine **fibroids (leiomyomas)** are benign tumors that can cause heavy menstrual bleeding (menorrhagia), pelvic pressure, and sometimes infertility. - However, they are less commonly associated with the triad of severe dysmenorrhea and dyspareunia as prominently as seen in endometriosis.
Question 8: What are the primary indications for in vitro fertilization (IVF)?
- A. Uterine factor
- B. Tubal blocks (Correct Answer)
- C. None of the options
- D. Male factor (sperm count 12 million/ml)
Explanation: ***Tubal blocks*** - **Tubal blockages**, whether bilateral or severe unilateral, prevent the natural meeting of sperm and egg, making IVF an essential treatment to bypass this anatomical obstruction. - This is the **primary and classic indication** for IVF, as it allows fertilization to occur externally before embryo transfer to the uterus. - Tubal factor infertility was the original indication for which IVF was developed. *Uterine factor* - **Severe uterine factors**, such as significant structural abnormalities or severe intrauterine adhesions, are generally considered contraindications or make IVF less successful. - While IVF can bypass some reproductive challenges, it cannot overcome significant issues with the uterine environment needed for implantation and pregnancy maintenance. *None of the options* - This option is incorrect because **tubal blocks** are a well-recognized and primary indication for IVF. - IVF effectively addresses reproductive challenges linked to tubal patency issues. *Male factor (sperm count 12 million/ml)* - A sperm count of 12 million/mL represents **oligozoospermia** (normal >15 million/mL per WHO criteria). - While male factor infertility is an indication for assisted reproduction, **ICSI (Intracytoplasmic Sperm Injection)** rather than conventional IVF is typically the preferred treatment for significant male factor. - Treatment choice depends on comprehensive semen analysis including motility, morphology, and overall fertility assessment of both partners.
Question 9: A 28-year old woman comes with infertility. Husband's semen analysis is normal. Endometrial biopsy shows secretory changes with no evidence of tuberculosis. On hysterosalpingography both tubes show tubal blockage. What should be the next step in management?
- A. IVF
- B. Diagnostic laparoscopy and chromo-pertubation (Correct Answer)
- C. Tuboplasty
- D. ICSI
Explanation: ***Diagnostic laparoscopy and chromo-pertubation*** - This procedure directly visualizes the fallopian tubes and surrounding pelvic structures, allowing for definitive confirmation of tubal blockage and identification of potential causes like **endometriosis** or **adhesions**. - **Chromo-pertubation** involves injecting a dye through the cervix to assess tubal patency and identify the exact location and nature of the blockage. *IVF* - While IVF is a viable option for tubal factor infertility, it is generally considered after a more thorough diagnostic workup, especially when the cause of blockage is unknown and potentially treatable. - Proceeding directly to IVF without assessing the possibility of surgical correction might be premature and miss an opportunity for natural conception or a less invasive intervention. *Tuboplasty* - **Tuboplasty** is a surgical procedure to repair or reconstruct damaged fallopian tubes. - However, its success depends on the extent of damage and the specific type of blockage, which can only be determined after a diagnostic evaluation like laparoscopy. *ICSI* - **ICSI (Intracytoplasmic Sperm Injection)** is a specialized form of IVF primarily used for severe male factor infertility, not tubal blockage, especially when the husband's semen analysis is normal. - While ICSI can be part of an IVF cycle, it's not the primary next step for diagnosing or treating tubal blockage in a woman with normal male factor.
Question 10: How do chlamydial infections lead to fallopian tube damage and infertility?
- A. Through direct cellular lysis and tissue destruction
- B. By production of cytotoxins that damage cilia
- C. By persistent immune response causing fibrosis and scarring (Correct Answer)
- D. By stimulating tubal spasm and stenosis
Explanation: ***By persistent immune response causing fibrosis and scarring*** - **Chlamydial infections** can persist in the fallopian tubes, leading to a **chronic inflammatory response**. - This sustained inflammation results in **fibrosis** and **scar tissue formation**, which distorts the normal anatomy and function of the fallopian tubes, leading to infertility. *Through direct cellular lysis and tissue destruction* - While *Chlamydia* can infect and replicate within cells, its primary damage mechanism in the fallopian tubes is not through **extensive direct cellular lysis** or immediate widespread tissue destruction. - The damage is more insidious and chronic, driven by the host's immune response rather than acute cellular death. *By production of cytotoxins that damage cilia* - *Chlamydia trachomatis* does not primarily produce potent **cytotoxins** that directly devastate ciliary function in the way some bacterial pathogens might. - Ciliary damage occurs as a *consequence* of inflammation, rather than being the direct result of a specific chlamydial exotoxin. *By stimulating tubal spasm and stenosis* - While inflammation can indirectly affect tubal motility, **chlamydial infections** do not specifically cause primary **tubal spasm** or acute **stenosis** as their main mechanism of damage. - The long-term consequence of inflammation is scarring and stricture, which can lead to stenosis, but this is a secondary effect of chronic inflammation and fibrosis.
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