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Type:
Educational Exhibit
Keywords:
Ear / Nose / Throat, Oncology, CT, MR, Digital radiography, Staging, Diagnostic procedure, Education, Pathology, Cancer, Neoplasia
Authors:
C. E. Desaga; Cluj Napoca/RO
DOI:
10.1594/ecr2017/C-1322
Background
Early symptoms of paranasal sinus tumors include rhinorrhea,
lacrimation and epistaxis,
which are often overlooked by patients and doctors.
By the time late symptoms such as anosmia,
visual disturbances,
cranial neuropathy or facial swelling occur,
most tumors have reached an advanced stage with a poor prognostic outcome.
In most cases,
CT and MRI are complementary.
CT scans allow detection of lesions and assess bone destruction as well as orbital or intracranial extension.
MRI scans are particularly useful in detecting intracranial extension and perineural spread in cases with malignant tumors,
to differentiate inspissated secretions from neoplasms,
and even individualising certain specific neoplasms,
thus being of great importance to the surgeon and the radiotherapist.
However,
in order to avoid surgical artefact,
it is recommended for the imaging studies to be obtained prior to biopsy of the lesions.