Bilateral Quadriceps Femoris Tendon Rupture in a Patient With Chronic Renal Insufficiency: A Case Report.

BACKGROUND: Simultaneous bilateral quadriceps femoris tendon rupture is a relatively rare occurrence. As such, patients frequently experience a delay in receiving an accurate diagnosis. It is often associated with significant morbidity and loss of function. We report a case of simultaneous bilateral quadriceps tendon ruptures in a patient with chronic renal insufficiency. CASE REPORT: A 46-year-old white man presented to the Emergency Department (ED) via ambulance, reporting sudden onset of bilateral lower limb weakness. He had a medical history of renal insufficiency due to immunoglobulin-A-induced glomerulopathy, with secondary hyperparathyroidism and gout. Examination of his lower limbs revealed significant swelling in his distal thighs anteriorly and suprapatellar defects at the insertion of the quadriceps tendon. No other palpable deficits were identified. The patella was in a normal position and there was minimal tenderness on palpation. He had complete loss of active knee extension. Bilateral patella reflexes were absent. Lower-limb sensation was intact bilaterally and no other neurovascular deficits were elicited. Thompson test was negative and the rest of the clinical examination was unremarkable. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: The inability to walk is a common ED presentation. The differential diagnosis is vast and includes but is not limited to: spinal cord injury, Guillain-Barré syndrome, myopathies, and even malingering. This case report details an uncommon cause for a common ED presentation. Furthermore, this case illustrates the importance of a detailed clinical history and physical examination, which narrowed the differential diagnosis and ultimately led to the clinical diagnosis. Knowledge of the patient's past medical history combined with simple imaging modalities permitted a prompt clinical diagnosis of an uncommon condition, which facilitated early operative management.

Thyroid storm after pediatric levothyroxine ingestion.

A 2-year-old girl was found with an empty bottle of levothyroxine and blue coloring around her mouth. Forty tablets of 150-microg levothyroxine tablets were missing. Her 6-hour postingestion total thyroxine (T4) level was 68.1 microg/dL (normal range: 5-12 microg/dL), and her total triiodothyronine (T3) level was 472 ng/dL (normal range: 40-130 ng/dL). Serum levels of thyrotropin, T3, and T4 were then checked on days 3, 5, 7, and 10. On postingestion day 5, the child presented for follow-up with hyperthermia, vomiting, irritability, and increased lethargy. She was referred to the emergency department, where a heart rate of 220 beats per minute, a blood pressure of 130/80 mm Hg, and a temperature of 101 degrees F were recorded. She also had multiple episodes of diarrhea. The patient was treated with oral propranolol (0.8 mg/kg) every 6 hours, intravenous normal saline, and ibuprofen; all her vital signs improved. Serial T3, T4, and thyrotropin serum levels were measured. Her total T3 levels were >800, 798, 445, 446, and 98 ng/dL on days 3, 5, 6, 9, and 13, respectively. Total T4 measurement was repeated on day 13, and the concentration was found to be 11.9 microg/dL. Her thyrotropin levels remained undetectable throughout the course of treatment. The patient was discharged from the hospital after a 4-day PICU stay, in good condition, on oral propranolol 0.8 mg/kg every 8 hours. Propranolol administration was discontinued 8 days after initiation with no further tachycardia, hypertension, or hyperthermia. The child tolerated the recommended regimen.