SEARCH · Search PubMed
Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Osteomas are non-malignant tumours made of bone with sclerosis in some degree which are seen inside the bones or sticking out of them. They are not very frequent but it is not rare to see them in the paranasal cavity, specially in the frontal sinus, and they are very frequent in the temporal bone. It is presented a case through which a bibliographic review of these tumours in these places is made.
The ear that is deaf and continues to discharge after radical or modified radical mastoidectomy remains an unsolved problem for the otologist. The temporal bones of 17 patients in whom open mastoidectomy had been done during their life time were serially sectioned and examined. Histological changes secondary to surgery and chronic infection are described. The study fails to reveal a specific cause for unhealed areas in the mastoid bowl. It is suggested that the unhealed areas are caused by the unhealthy physical environment for the surface epithelium.
Central nervous system (CNS) leukemia is a pathologic condition whereby leukemic cells enter the cerebrospinal fluid (CSF) causing meningeal irritation syndrome. Temporal bone findings in the case of a 32-year-old man who died of CNS leukemia are presented. He complained of fullness of the ear 4 months prior to death and of dizziness 1 month prior to death. Leukemic cells were seen to have infiltrated the scala tympani of the basal turn in the cochlea, the saccule, and posterior semicircular canal along the vestibulocochlear nerve.
Modern imaging includes many studies performed to examine limited fields of view (i.e., paranasal sinus studies). These studies are frequently retrospectively coned to the limited field of view and are often examined only at one window and level setting. However, classic radiology teaching demands that all irradiated structures be examined by a qualified physician; for examples, on an intravenous pyelogram the examiner should look at not only the kidneys, ureters, and bladder, but also the bones, soft tissues, and gas patterns. This article illustrates unsuspected intracranial pathology noted on computed tomographic examinations of the paranasal sinuses and temporal bones.
A case report of a patient suffering from severe otalgia for 12 months and intermittent otorrhoea over a 53 year period is presented. Diagnosed as verrucous carcinoma of the temporal bone, this is only the ninth case found in the literature. The difficulty of histological diagnosis and subsequent management are important features.
BACKGROUND: Congenital cavernous angioma is a very rare tumor that occurs in young adolescents. We describe a rare case of congenital cavernous angioma of the temporal bone in a neonate. Ultrasonography (US) and dynamic magnetic resonance imaging (MRI) were helpful in its diagnosis. CASE DESCRIPTION: US and MRI of the fetus in the 32nd week of gestation revealed a large extra-axial tumor with intra- and extracranial extension. After the birth, US and dynamic MRI studies were performed in addition to conventional CT and MRI. These findings were compatible with cavernous angioma. The mass was totally removed on the fourth day of life and was found at surgery to originate from the skull. Histopathological diagnosis was cavernous angioma. The usefulness of US and dynamic MRI are also discussed. CONCLUSION: US and dynamic MRI are useful, less invasive techniques for diagnosing this rare type of tumor. They provide useful information to differentiate calvarial mass lesions in neonates.
OBJECTIVES: The purposes of this study were to examine the quality of life (QL) of patients who received treatment for cancer of the parotid or temporal region, and to identify factors contributing to it. The relationships between clinician-based measures of treatment outcome and the patient-based counterparts were also evaluated. METHODS: A retrospective, cross-sectional study was conducted on 23 patients who had received either a temporal bone resection or a combination of parotidectomy and radiotherapy. The QL survey involved both global QL and measures of the appearance, communication, hearing, physical, psychological, and social domains. Patients were assessed clinically for their performance status, facial nerve function, disfigurement, and hearing and the results were compared with patient-rated QL. Correlation between the QL variables and global QL was identified using Spearman correlation tests. RESULTS: Ongoing physical symptoms, communication difficulties, and social disturbances were associated with poorer global QL (P <.05). No correlation was detected between global QL and objective disfigurement, facial function, and measures of hearing loss. With the exception of hearing testing, clinical assessments generally did not correlate well with patient ratings. CONCLUSION: QL measures provide insight into patients' perceptions of the treatment outcome but do not necessarily correlate with the clinicians' views. The use of a global QL measure overcomes the difficulty of extrapolating the impact of symptom scores or observational measures on patients' overall quality of survival.
T2-weighted high-resolution gradient and fast spin echo sequences are widely used as an alternative or adjunct to contrast-enhanced T1-weighted temporal bone imaging. However, to date no systematic comparison has been presented. The purpose of this work is to identify optimal acquisition parameters and to compare volume gradient and fast spin echo techniques. Signal intensities and scan efficiency were computed for gradient echo segment-interleaved motion-compensated acquisition into steady state (SIMCAST), standard fast spin echo (FSE), and fast recovery fast spin echo (FR-FSE). Computations were compared with inner ear images acquired with cubic voxel sizes of 0.35-0.40 mm(3)in 5-8 minutes. Given otherwise identical conditions, the FR-FSE sequence produces images with improved SNR in shorter scan times than standard FSE. For FR-FSE, the scan efficiency is optimal for specific pairs of TR and echo train length, eg, 400 ms/8, 735 ms/16, and 2,050 ms/48. FR-FSE images with large TR and echo trains, while achieving better SNR, are severely compromised by blurring. Imaging with echo train lengths of 16-24 and TR of 800-1,200 ms is a good compromise, and FR-FSE signal-to-noise ratio (SNR) and scan efficiency become comparable to SIMCAST. In vivo image quality is excellent with both FR-FSE and SIMCAST, but SIMCAST images have slightly higher SNR and are significantly more crisp. J. Magn. Reson. Imaging 2000;12:814-825.
A 36-year-old male with a primary chondroid chordoma is presented. This tumour arose from the base of the temporal bone and extended to the mastoid cavity. It involved the facial nerve and was adherent to the internal jugular vein and internal carotid artery. The tumour was excised and the patient has been carefully followed up for 10 years. He has shown no evidence of local recurrence, intracranial extension of the residual tumour and distant metastasis.
Malignant external otitis and squamous cell carcinoma of the external auditory meatus are both characteristically seen in the older population. While some of the signs and symptoms of these two diseases are similar (otalgia, otorrhea, bone destruction on computed tomographic scan), they have rarely been reported in the same patient. We present an unusual case of temporal bone cancer and malignant external otitis presenting concurrently in an elderly, nondiabetic host. Precipitating factors and diagnostic criteria are discussed. This case illustrates the importance of an adequate biopsy specimen in all patients presenting with presumed "classic" malignant external otitis. Consideration must also be given for the existence of malignant external otitis in the presence of carcinoma. Finally, evolution of malignant external otitis in this patient following aural irrigation supports previous suggestions that this disease may be induced iatrogenically.
In a series of 25 ears with chronic otitis media the correlation between findings obtained by preoperative C-T of the temporal bone and observations made at surgery was evaluated. The study was performed "blindly", i.e., neither the radiologist nor the surgeon had any knowledge of the other's findings. Cholesteatoma prediction varied with location. Similar observations were made in respect to granulation tissue and erosions. A relatively high percentage of false positives and false negatives was found even in this rather small sample. To obtain better results by C-T, close co-operation and exchange of information between clinician and radiologist appears necessary, along with an explorative attico-antrotomy as a regular part of the operation.
A case of a 57-year-old man with a 25-year history of untreated basal cell carcinoma of the ear is presented. The lesion resulted in auricular destruction and temporal bone invasion. This case emphasizes the potential destructive ability of basal cell carcinoma. Extensive resection and reconstruction were required for control.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.