PMC5011211_01
MRI of neck showing pharyngeal mass.
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fig1
An MRI of neck without contrast also showed same mass (see Figure 1).
CT scan of head without any intracranial lesion.
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A CT scan of head was performed which did not find any intracranial lesions (see Figure 2).
Changes in serum sodium levels during hospital stay.
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fig3
Over the course of next seven days, patient's sodium gradually improved and became normal after fourteen days (see Figure 3).
Low power view showing tumor on mucosal surface, invading in submucosa.
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fig4
The underlying etiology of her SIADH was attributed to biopsy-proven well differentiated squamous cell carcinoma of the oronasopharynx (see Figure 4).