Search PubMed⌕ Search

Biomedical subjects

P M Som

Publications and source records attributed to P M Som.

14 recordsLinked to original sources
PubMed1979

Case report. The iron rim sign.

A chronic cystic cerebral hematoma occurred in the frontal lobe and mimicked both clinically and radiographically a frontal sinus mucocele. A rim seen on multidirectional tomography and unenhanced computed tomography was presumed to be composed to calcium. However, electron microscopic analysis revealed the rim to be composed almost entirely of iron from hemosiderin breakdown products. This is the first such report of an "iron rim" that we could find in the literature.

Adult↗
PubMed1979

Laryngeal sarcoid.

Involvement of the larynx is an unusual complication of sarcoidosis. Clinical and laryngographic findings are reviewed and a differential diagnosis is given. Unlike the pulmonary and hilar manifestations of the disease, laryngeal lesions do not respond well to systemic steroids, although local injections may alleviate the need to perform a tracheostomy for airway obstruction.

Adult↗
PubMed1979

A clinical-radiographic classification of skull base lesions.

Lesions involving the base of the skull can be divided into primary and secondary disease processes. The primary group consists of bone lesions more often seen elsewhere in the skeletal system while the secondary group consist of those lesions extending to the base of the skull by direct extension from adjacent intracranial or extracranial sites. The purpose of this paper will be to arrive at a classification of skull base lesions based on the roentgen localization of the disease process. The base of the skull because of its anatomically variable curvature can be difficult to evaluate on good quality conventional radiographs. In addition to the changing angles of the bone itself, the overlying soft tissues of the pharynx and neck only serve to further conceal areas of bone pathology. The advent of polytomography and CAT scanning has greatly aided the evaluation of this region which clinically is extremely difficult to assess. In some instances invasive modalities such as angiography and posterior fossa myelography are necessary to define the lesion. With these diagnostic methods available, rather than discovering classical patterns of disease, a variety of disease processes have been found that radiographically mimic each other. Similarly, on a purely clinical basis, many of the disease entities present in a similar fashion. It is only by a combined approach that an intelligent differential diagnosis can be offered.

Adolescent↗
PubMed1978

Tuberculous otitis media.

Tuberculous otitis media is a variable and puzzling infectious disease which may remain undiagnosed or confused with other acute or chronic middle ear conditions if appropriate diagnostic studies are not performed. Among the common clinical findings are insiduous onset of painless watery drainage, severe hearing loss, multiple perforations of the tympanic membrane and subsequent appearance of profuse granulation tissue. As the disease progresses destruction of the middle ear conductive apparatus, facial paralysis, cochlear involvement with labyrinthitis and further hearing loss, and finally intracranial dissemination of infection may occur. The case histories of two patients recently treated at Mount Sinai Hospital illustrate some of the clinical problems encountered with this disease.

Adult↗
PubMed1978

The evaluation of middle ear meningiomas using computerized axial tomography.

Meningiomas localized within the middle ear and mastoid which have no intracranial component are rare tumors. Three patients with meningiomas which were thought to involve only the middle ear were treated surgically, were followed for two to six years and were thought to have been cured. However, when computerized axial tomography became clinically available, these patients were examined using this radiographic technique. Unexpectedly, all three patients were found to have a large intracranial meningiomatous extension. A review of the literature reveals only 13 primary meningiomas; these case reports are summarized. It was noted that definitive tests for an intracranial extension of the meningioma were performed in only 2 of the 13 cases. Therefore, in view of our recent clinical experience, it is recommended that a patient presenting with a middle ear meningioma should have a computerized axial tomographic examination of the head to detect the possible presence of a clinical silent intracranial involvement.

Adolescent↗
PubMedDate not supplied

Benign pleomorphic adenoma of the larynx. A case report.

Minor salivary gland tumors of the larynx are relatively rare. Morphologically the majority of them are adenoid cystic carcinomas and the overwhelming location is the subglottic larynx. Benign pleomorphic adenomas are rare minor salivary gland tumors of the larynx which usually occur at the glottic and subglottic levels. We present only the sixth case of a supraglottic benign pleomorphic adenoma that we could find in the literature. A preoperative laryngogram localized the tumor to the supraglottic larynx and the intact mucosa suggested a specific differential diagnosis. The tumor was removed by a lateral pharyngotomy with retention of good laryngeal function. The relatively asymptomatic presentation of our case is a somewhat unusual finding which, however, was previously noted in similar case reports.

Adenoma, Pleomorphic↗
PubMedDate not supplied

The combined computerized tomography-sialogram. A technique to differentiate deep lobe parotid tumors from extraparotid pharyngomaxillary space tumors.

The preoperative differentiation of a deep lobe parotid tumor from a parapharyngeal tumor is important to the surgeon in determining the correct surgical approach. The combined parotid sialogram and CT scan provide more information than either study alone, and we feel that a reliable preoperative differentiation can be made on this combined study.

Adult↗