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Biomedical subjects

M L Som

Publications and source records attributed to M L Som.

At least 55 records · Page 3Linked to original sources
PubMedDate not supplied

Peripheral nerve sheath tumors of the paranasal sinuses.

Only 4% of peripheral nerve sheath tumors of the head and neck occur in the paranasal sinuses. The most commonly involved sinus is the maxillary antrum and the most common histologic type is benign schwannoma. Two new cases of schwannoma occurring in the sphenoid and maxillary sinuses are reported. The clinical pathologic, and radiographic features of these lesions are reviewed.

Aged↗
PubMedDate not supplied

Schwannomas of the larynx: review and computed tomographic scan analysis.

Neurogenic tumors consist of schwannomas, neurofibromas, and neurosarcomas that arise from the Schwann cell of a peripheral nerve. Their occurrence in the larynx is rare, with only 115 cases having been reported. Three new cases are presented, the literature is reviewed, and the first computed tomographic (CT) scan of a benign schwannoma of the larynx is demonstrated. The diagnosis and treatment of these tumors and the CT scan analysis are discussed.

Adult↗
PubMedDate not supplied

Vertical partial laryngectomy for glottic carcinoma with posterior subglottic extension.

Posterior subglottic extension of glottic carcinoma has been a contraindication for partial laryngectomy because of the proximity of the cricoid cartilage. Resection of the upper portion of the posterior aspect of the cricoid is necessary for adequate tumor resection but is complicated by persistent aspiration. This paper presents a method of reconstruction following partial posterior cricoid resection.

Carcinoma, Squamous Cell↗
PubMedDate not supplied

Laryngeal nerve crush for spastic dysphonia.

Four patients with spastic dysphonia refractory to speech and phychiatric therapy were treated by crushing the recurrent laryngeal nerve. Vocal cord paralysis was produced in all patients. Vocal spasticity subsided in all patients. Vocal cord motion returned in four to six months. Three of four patients remained free of spasticity for a minimum of 24 months.

Female↗
PubMedDate not supplied

Laryngeal nerve crush for spastic dysphonia.

Twenty-two patients with a diagnosis of spastic dysphonia were treated by laryngeal nerve crush. All patients had initial improvement. Success at 3-year follow-up was 13%. Laryngeal nerve crush is no longer advocated as treatment for spastic dysphonia.

Humans↗
PubMedDate not supplied

Unusual presentations of penetrating foreign bodies of the upper aerodigestive tract.

Only a small number of ingested foreign bodies perforate the esophagus and even a smaller fraction migrate extraluminally. Four such penetrating and migrating foreign bodies of the upper aerodigestive tract are presented. Review of the literature revealed 321 cases of penetrating ingested foreign bodies, of which 252 remained intraluminal and 43 were found extraluminally, with the status of the remainder indeterminate. Analysis revealed that an intraluminal penetrating foreign body carried a higher overall mortality than one that migrated extraluminally. Although intraluminal and extraluminal penetrating foreign bodies may remain quiescent for years before presenting a complication, no correlation existed between mortality and the duration of the foreign bodies' retention. The greatest mortality was seen with vascular complications followed by diffuse and local suppurative processes. The overall mortality was significantly reduced in the post-antibiotic era.

Adolescent↗
PubMedDate not supplied

Olfactory groove meningioma with paranasal sinus and nasal cavity extension: a combined approach.

A 58-year-old man had an enlarging right fronto-orbital mass. A biopsy specimen of a right nasal cavity tumor was reported as meningioma. Preoperative evaluation including skull roentgenograms, tomograms of the paranasal sinuses, brain scan, computerized axial tomography, and carotid angiography substantiated a large subfrontal mass with paranasal sinus and orbital extension. A combined approach through a right frontal craniotomy and right lateral rhinotomy was used for a complete removal of this tumor. A review of the literature is contained herein.

Bone Neoplasms↗
PubMedDate not supplied

Thyroid carcinoma in a patient with a coexisting functional adenoma.

Fourteen case reports have been published in which "hot" nodules have been documented as carcinoma, with or without coexisting adenomas. The diagnosis of these lesions is difficult, since hot nodules usually represent benign disease. These carcinomas are not functional, but represent coexistence of a functional area or a malignant degeneration. Hot nodule carcinomas should be suspected in high-risk patients. A euthyroid, 31-year-old woman who, as a teenager, had radiotherapy for acne is reported. She was followed up with yearly scans for a hot nodule in the right lower lobe of her thyroid. When she was 36, a node was discovered in the right side of her neck, and carcinoma was suspected. Surgical excision revealed a papillary-follicular carcinoma adjacent to an adenoma with metastases to regional lymph nodes.

Adenocarcinoma↗
PubMedDate not supplied

Metastatic hypernephroma to the head and neck.

Eight cases of metastatic hypernephroma to the head and neck are presented with CT documentation. Hypernephroma is the third most common infraclavicular tumor to metastasize to the head and neck. Such metastases occur in about 15% of patients with this neoplasm, and nearly 8% of patients with this tumor present with disease in the head and neck region. These metastases are usually vascular and may either clinically precede the diagnosis of the renal primary tumor or may occur many years after apparently successful surgery of the primary tumor. These unusual patterns of behavior are reviewed. One of the cases presented here is the first reported incidence of cervical lymph node metastasis with hemorrhage to be documented by CT, thus adding this entity to the list of imaging differential diagnoses of cystic-appearing neck masses.

Angiography↗