Oncologic emergencies can occur in cancer patients who have a good pro
gnosis. In all of them, the challenge to the clinician is to diagnose
and treat before irreversible complications occur. In febrile patients
with neutropenia, cultures of body fluids should be obtained and ther
apy should be stared immediately with broad-spectrum antibiotics. If s
pinal cord compression is suspected, either magnetic resonance spectro
scopy or complete myelography can be done to confirm the diagnosis. Pr
ompt workup in cancer patients with headaches or seizures may avoid ne
urologic consequences. For brain metastases, immediate treatment with
dexamethasone (Decadron, Dexone, Hexadrol) is indicated. For hypercalc
emia, a number of drugs that inhibit bone resorption, resulting in low
er serum calcium levels, are now available. Malignant cardiac tamponad
e is relatively rare but potentially lethal; emergency pericardiocente
sis often results in marked improvement.