Proper grading of the cribriform prostate cancer pattern has not previously been supported by outcome-based evidence. Among 153 men who underwent radical prostatectomy, 76 with prostate-specific antigen (PSA) failure (≥0.2 ng/mL [0.2 μg/L]) were matched to 77 without failure. Frequencies of high-grade patterns included fused small acini, 83.7%; papillary, 52.3%; large cribriform, 37.9%; small (...

Spontaneous migration of airgun pellet in the brain CT scans of an 18-year-old girl shot in the right eye by a 0-177 airgun pellet fired from close range. Top left: The pellet passed through the orbital roof, entered the intracranial compartment via the cribriform plate and lodged in the left cerebral hemisphere adjacent to the anterior limb of the internal capsule (arrow, top right). Bottom le...

Malignant tumors of the nasal cavity are rare. We report the case of an elderly woman who consulted us with a 4-year history of progressive nasal obstruction, occasional epistaxis, facial pain, and watering of the eyes. A diagnosis of olfactory neuroblastoma was established by histopathology and confirmed by immunohistochemistry. On staging, the mass was classified as a Kadish stage B tumor. Th...

Paired imaging studies consisting of computed tomography (CT) and magnetic resonance imaging (MRI) were performed in eight dogs to evaluate subjectively whether MRI is superior to CT in detecting intracalvarial changes associated with canine nasal neoplasia. Imaging in four anatomical regions (caudal ethmoturbinates, cribriform plate, frontal sinuses, and the olfactory peduncle of the frontal l...

Developmental midline abnormalities involving facial, optic, cranial, and cerebral structures are complex anomalies that require a multidisciplinary therapeutic approach. Radiologic evaluation requires identification of cerebral anatomy, orbital structures, facial bones, and the anterior fossa as well as the relationships of these structures to one another. We report an unusual combination of l...

The olfactory groove schwannoma is a quite rare tumor. We report a case of a 49-year-old woman with an olfactory groove schwannoma attached to the cribriform plate without olfactory dysfunction. She had no specific neurological symptoms other than a headache, and resection of the tumor showed it to be a schwannoma. About 19 months after the operation, a follow-up MRI showed no evidence of tumor...