Patient Presentation
A 45-year-old man presents with a bulge in his right groin that becomes more pronounced with lifting and straining. He reports intermittent discomfort but no severe pain. His medical history is otherwise unremarkable.
On examination there is a palpable, reducible mass in the right inguinal area that increases with Valsalva. There is no tenderness, erythema, or overlying skin change, and the mass reduces easily. Vital signs are normal.
You are asked to evaluate the patient, establish the diagnosis, and formulate a management plan—recognizing that although this presentation is elective, you must be prepared to escalate if the hernia becomes incarcerated or strangulated.
What You'll Be Asked — and What a Strong Resident Discusses
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How do you establish the diagnosis of an inguinal hernia in this patient?
Expected answer
History and physical exam are the gold standard. The classic history is a groin bulge worse with straining, lifting, or standing, with or without discomfort. On exam I observe for bulging/asymmetry with cough, then invaginate the fingertip into the external ring and palpate for a bulge as the patient coughs or performs Valsalva. Clinical exam has ~74% sensitivity and ~96% specificity, so a clear palpable reducible bulge is diagnostic and no imaging is required.
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When would you order imaging, and what modality?
Expected answer
Imaging is reserved for a symptomatic patient in whom no palpable defect or bulge is found on exam. Ultrasound is first-line (operator dependent but high sensitivity/specificity) and is dynamic with Valsalva. When there is persistent clinical uncertainty, CT or MRI gives more reproducible groin anatomy. If cross-sectional imaging shows no hernia, I pursue other causes of a groin bulge/pain (lymphadenopathy, lipoma, femoral hernia, cord/testicular pathology, adductor strain, aneurysm).
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This patient's history mentions intermittent discomfort. What symptoms would concern you for intermittent incarceration?
Expected answer
Associated pain, or gastrointestinal (obstructive symptoms, nausea) or urinary dysfunction should raise concern for intermittent incarceration. Episodes of a bulge that becomes hard, painful, and non-reducible then spontaneously resolves are the tip-off. These patients warrant repair rather than watchful waiting given the risk of progressing to fixed incarceration or strangulation.
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He is reducible and only mildly symptomatic. What are his management options?
Expected answer
For an asymptomatic or minimally symptomatic reducible inguinal hernia in a man, watchful waiting is safe and reasonable, but he should be counseled that the natural history is progressive enlargement and most men eventually need repair. For a symptomatic reducible hernia, elective outpatient repair is recommended. Since he has symptoms and a clearly reducible hernia, I would offer elective repair while discussing watchful waiting as an alternative.
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Would your recommendation change if this were a woman?
Expected answer
Yes. In women, repair is advised even if minimally symptomatic because of the higher incidence of concurrent femoral hernias and higher rate of hernia-related adverse events. The preferred operation in women is a laparoscopic or open preperitoneal (posterior) repair, which addresses the entire myopectineal orifice and covers a coexisting femoral defect.
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What operative approaches would you offer this man, and how do open and laparoscopic repairs compare?
Expected answer
The choice is individualized to patient and surgeon expertise/preference. Open anterior tension-free mesh (Lichtenstein) remains the gold standard—can be done under local anesthesia as an outpatient, low cost, low recurrence. Laparoscopic/robotic (TEP or TAPP) offers less postoperative pain and numbness, faster recovery, and treats bilateral hernias through the same incision, but has longer operative times, a learning curve, and a small risk of serious visceral/vascular injury. Recurrence rates are similar between mesh open and laparoscopic repairs.
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Describe the Lichtenstein repair and the difference between TEP and TAPP.
Expected answer
Lichtenstein: tension-free mesh with its apex fixed to the pubic tubercle, sutured to the conjoint tendon medially and inguinal ligament laterally; the mesh is split around the cord and the tails sutured to recreate the internal ring. TEP: a dissecting balloon opens the preperitoneal space without entering the peritoneum, the sac is reduced, and mesh covers the whole myopectineal orifice. TAPP: the peritoneal cavity is entered, a peritoneal flap is created to reach the preperitoneal space, mesh is placed, and peritoneum is reclosed over it—allowing inspection of the contralateral side and intra-abdominal organs but with the risk of intra-abdominal injury and adhesions.
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The patient returns months later with a firm, painful, non-reducible bulge. Walk me through your management.
Expected answer
This is an incarcerated hernia. I assess for strangulation—fever, tenderness out of proportion, erythema, skin changes—and check WBC and lactate. If no strangulation, I may attempt gentle manual reduction with sedation, Trendelenburg, and ice over the groin. If it reduces, I schedule urgent/elective repair given re-incarceration risk. If it will not reduce, or if strangulation is suspected, surgery is indicated. A strangulated hernia is a surgical emergency—I optimize with IV fluids, electrolyte correction, NG decompression, and IV antibiotics, then operate.
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At emergent operation you find dusky, non-viable small bowel. What do you do, and what about mesh?
Expected answer
I control the sac at its base to prevent contents dropping into the abdomen, open under direct vision, and inspect all contents. Non-viable bowel requires resection with anastomosis—feasible through the inguinal incision but with a low threshold to convert to a midline laparotomy (a posterior/preperitoneal or laparoscopic-assisted approach also allows extension). Because the field is contaminated, mesh is avoided: from an anterior approach I perform a tissue repair such as Shouldice, or plan a delayed mesh repair after a posterior/laparoscopic approach.
What Residents Often Miss
- Ordering CT or ultrasound for a patient with an obvious palpable, reducible bulge—imaging is only needed when exam is equivocal in a symptomatic patient.
- Failing to recognize signs of strangulation (fever, tenderness, erythema, elevated WBC/lactate) and forcibly reducing bowel that may be ischemic, potentially reducing dead bowel into the abdomen.
- Delaying the operating room for a strangulated hernia to obtain imaging or await labs—strangulation is a surgical emergency requiring resuscitation and prompt operation.
- Placing prosthetic mesh in a contaminated field after bowel resection for strangulated hernia instead of performing a tissue repair (Shouldice) or planning delayed mesh.
- Recommending watchful waiting for a woman with an inguinal hernia, ignoring the higher risk of femoral hernia and adverse events that make repair advisable.
- Being unable to describe or justify the operative approach (Lichtenstein vs TEP/TAPP) or the anatomy of the myopectineal orifice.
- Not counseling the watchful-waiting patient that progressive enlargement is expected and repair will likely eventually be needed, and failing to screen for symptoms of intermittent incarceration.
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