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Patient exhibits normal light touch and pin-prick sensation on the L side and normal R light touch down to T6. R pin-prick sensation is normal to T7. Sensation absent everywhere else. Elbow Extensors 5/5 Finger flexors 5/5 Finger abductors 5/5 VAC/DAP = NO   What is the neurological level of injury?

Molecular analysis of a colonic adenocarcinoma shows MSH2 gene mutation with microsatellite instability.  Which of the following condition is most likely associated with this cancer?

A 57-year-old woman has had burning epigastric pain after meals for more than one year.  The biopsy shows basal zone squamous epithelial hyperplasia and scattered intraepithelial eosinophils.  Which of the following complication is most likely to occur as a consequence of this patient’s condition?

The ASIA Scale “A” means: 

Loss of two-point discrimination with preserved pain/temp is most consistent with: 

A patient describes a progression of weakness over a 6-day period that began with moderate weakness in a glove and stocking distribution and has progressed to difficulty with all movements. The MOST likely diagnosis is: 

A 55-year-old man has a 5-cm submucosal jejunal mass and is resected.  The specimen shows nests and trabeculae of round cells with pink granular cytoplasm and salt-and-pepper chromatin.  His serum 5-hydroxyindoleacetic acid (5-HIAA) level is markedly increased.   Which of the following embryologic derivatives is most likely related to the cells in the mass?

A patient is unable to abduct the arm past 15 degrees, but the deltoid strength is intact. Which nerve is injured?

After a 30-day backpacking trip, a patient has pain over the lateral aspect of the shoulder. Upon examination of the patient, the orthotist notes weakness of elbow flexion and shoulder abduction on the same side as the pain. A lesion at which level of the following sites is MOST likely the source of the symptoms?

A 67-year-old man has had a 4-kg weight loss and nausea for the past 6 months.  The upper endoscopy shows that the entire gastric mucosa is eroded and has an erythematous cobblestone appearance.  The gastrectomy specimen shows small and shrunken stomach with a rigid thickened wall.  Which of the following is most likely the diagnosis?