This practice set contains high-yield board review questions covering key concepts in 10. Pathology and Oncology. Each clinical scenario is designed to test your diagnostic and management skills relevant to this subspecialty.
Question 4181
Topic: 10. Pathology and Oncology
Which of the following findings is more suggestive of neurogenic rather than vascular claudication in the differential diagnosis of leg pain?
Correct Answer & Explanation
. Loss of skin hair on the feet
Explanation
Question 4182
Topic: 10. Pathology and Oncology
Injury to the C7 nerve root results in weakness primarily of the
Correct Answer & Explanation
. wrist flexors and finger flexors
Explanation
Question 4183
Topic: 10. Pathology and Oncology
Which of the following conditions is most likely inherited as an autosomal dominant trait?
Correct Answer & Explanation
. Syndactyly
Explanation
Question 4184
Topic: 10. Pathology and Oncology
Which of the following surgical options after resection of a sarcoma about the knee would require a patient to expend the greatest amount of energy while walking?
Correct Answer & Explanation
. Arthrodesis
Explanation
Question 4185
Topic: 10. Pathology and Oncology
Chronic flatfoot deformity is most commonly associated with a contracture
of the
Correct Answer & Explanation
. Plantar fascia
Explanation
Question 4186
Topic: 10. Pathology and Oncology
The pharmacologic action of botulinum-A toxin can be best described as
Correct Answer & Explanation
. Prevention of presynaptic release of acetylcholine
Explanation
Question 4187
Topic: 10. Pathology and Oncology
With respect to femoral component design, stress relief osteopenia in the proximal femur following noncemented total hip arthroplasty appears to be most strongly influenced by the
Correct Answer & Explanation
. stiffness of the femoral component.
Explanation
Question 4188
Topic: 10. Pathology and Oncology
The stability of the longitudinal arch of the foot during standing with equal weight on both feet is due primarily to
Correct Answer & Explanation
. plantar fascia and quadratus plantae tendon.
Explanation
Question 4189
Topic: 10. Pathology and Oncology
A 32-year-old has diffuse pain, weakness, and limited overhead motion in the shoulder as a result of falling on his outstretched arm 2 months ago. Examination reveals medial scapular winging, and an electromyogram shows denervation of the long thoracic nerve. Management should consist of
Correct Answer & Explanation
. scapulothoracic fusion
Explanation
Question 4190
Topic: 10. Pathology and Oncology
A 45-year-old man who has medial compartment disease and chronic medial knee pain with varus alignment of 5 degrees is best treated with a
Correct Answer & Explanation
. tricompartmental knee replacement
Explanation
Question 4191
Topic: 10. Pathology and Oncology
Which of the following factors is most likely to predispose a patient to dislocation of the patellar component following total knee arthoplasty?
Correct Answer & Explanation
. Internal rotation of the femoral component
Explanation
Question 4192
Topic: 10. Pathology and Oncology
What is the most common sequela of turf toe (hyperextension of the first metatarsophalangeal joint)?
Correct Answer & Explanation
. Hallux rigidus
Explanation
Question 4193
Topic: 10. Pathology and Oncology
A radiograph of a 12-year-old boy who has had an insidious onset of pain in the right hip for the past 6 weeks shows diffuse narrowing of the joint space. Examination reveals that he is afrebile, and the range of motion of the hip is less than 50% of normal in all planes. Laboratory studies show an erythrocyte sedimentation rate of 21 mm/hr and a WBC of 11,000/mm3. What is the most likely diagnosis?
Correct Answer & Explanation
. Sickle cell crisis
Explanation
Question 4194
Topic: 10. Pathology and Oncology
Figures 42a and 42b show the sagittal and axial MRI scans of a 24-year-old patient who has sciatia. Which of the following combinations of physical findings is most consistent wit the MRI studies?
Correct Answer & Explanation
. Decreased ankle jerk and positive femoral nerve stretch test
Explanation
Question 4195
Topic: 10. Pathology and Oncology
An otherwise healthy 65-year-old man has had chronic pain in his prosthetic knee for the past 9 months. Repeated aspirations reveal a coagulase-negative staphylococcus infection. To eradicate the infection while maintaining the best possible joint function, management should consist of
Correct Answer & Explanation
. Long-term administration of IV and oral antibiotics
Explanation
Question 4196
Topic: 10. Pathology and Oncology
Figures 43a and 43b show the radiographs of an 8-year-old boy who was referred by his gym teacher because of an awkward running pattern. The patient denies any pain in his hips. Examination reveals a mild Trendelenberg gait and decreased internal rotation of the left hip to 25 degrees compared to 40 degrees on the right. What is the most likely diagnosis?
Correct Answer & Explanation
. SCFE
Explanation
Question 4197
Topic: 10. Pathology and Oncology
A 31-year-old man who is a recent immigrant from Guatemala has had pain in his back and thighs for the past 12 months. History notes a recent diagnosis of gout, and the patient reports falling a distance of 3 feet on his buttocks immediately before the pain began. Examination reveals that he is neurologically intact. Plain radiographs are shown in Figures 44a and 44b, and T2-weighted MRI scans are shown in Figures 44c and 44d. The most likely cause of the pathologic fracture is
Correct Answer & Explanation
. gout.
Explanation
Question 4198
Topic: 10. Pathology and Oncology
Osteoarthritic cartilage is characterized by decreased
Correct Answer & Explanation
. water content.
Explanation
Question 4199
Topic: 10. Pathology and Oncology
Which of the following metastatic carcinomas has the worst long-term prognosis?
Correct Answer & Explanation
. Lung
Explanation
Question 4200
Topic: 10. Pathology and Oncology
The Magnetic resonance imaging signal characteristics of a high-grade soft-tissue sarcoma are best described as
Correct Answer & Explanation
. T1-low, T2-low.
Explanation
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