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Biomedical subjects

S B Mann

Publications and source records attributed to S B Mann.

At least 37 records · Page 2Linked to original sources
PubMed1996

Ultrasound versus physical examination in staging carcinoma of the mobile tongue.

Surgical therapy for early lesions of the tongue should have the potential to be both oncologically sound and easy to rehabilitate. Obviously, the amount of tongue left behind after surgery is proportional to the post-operative function. Hence accurate mapping of the diseased tongue is of paramount importance in order to limit or extend the resection margins. We have evaluated the use of ultrasound in carcinoma of the tongue, and also compared its relative accuracy with physical examination for determining the extent of growth, keeping the histopathological size as a gold standard. We found that ultrasound is more accurate in detecting T2 and T3 tumours than T1 lesions. Intraoral sonographic mapping may be the answer for such small lesions. In addition, ultrasonography is beneficial in showing spread to contiguous areas of the tongue. However, post-radiation fibrosis and frank residual disease were not differentiated accurately by ultrasound. Thus ultrasonography can be an effective investigative tool and together with physical examination it can increase diagnostic accuracy leading to precise surgery for carcinoma of the tongue.

Carcinoma, Squamous Cell↗
PubMed1996

Rhabdomyosarcoma of head and neck--an analysis of 24 cases.

Clinical records of 24 cases or rhabdomyosarcoma involving head and neck region were studied. Majority of the patients (83.3%) were under five years of age. The common sites of involvement were the middle ear (50%) and the nasopharynx (17%). Embryonal variety was noted in majority of patients (83.3%). Pain and swelling in the post aural or pre-auricular region was the commonest mode of presentation. Last four cranial nerves were involved in eight patients and four patients had extension of the tumor in the posterior cranial fossa. Twenty patients having embryonal rhabdomyosarcoma received combination of chemotherapy and radiotherapy. Half of these remained tumor free upto six months. Surgical extirpation was done only in two patients, where the disease was localised. The tumor in these two patients was of pleomorphic variety and did not recur till two years after surgery.

Adolescent↗
PubMed1994

Localized amyloidosis of the nasopharynx.

A case of localized amyloidosis of the nasopharynx is presented. This is only the seventh case report of nasopharyngeal amyloidosis to the best of our knowledge. Though rare, this disease should be diagnosed early and properly treated with surgery. All patients of localized disease should be followed up for any evidence of systemic amyloidosis.

Aged↗
PubMed1992

Maxillary antrum involvement in multibacillary leprosy: a radiologic, sinuscopic, and histologic assessment.

Thirty patients having lepromatous leprosy (22 males, 8 females) and showing radiological involvement of the maxillary antrum were subjected to sinuscopy, biopsy, and histopathological examination. Radiological observations showed diffuse opacity in 33.3% of the sinuses, localized mucosal thickening in 28.6%, and generalized thickened mucosa in 38.1%. Sinuscopy revealed inflamed mucosa as the most common finding (40%), followed by ulcerative (26.7%) and granulomatous (10%) lesions of the mucosal lining. The mucosal thickening (localized or generalized) evident on radiology was always associated with granuloma formation and acid-fast bacilli in the histology. The presence of an external nasal deformity indicated a statistically significant chance of encountering mucosal involvement on sinuscopy and histopathology (p < 0.05). There was more chance of finding positive sinuscopic lesions in those patients with a bacterial index above 3+.

Adult↗
PubMed1991

Post traumatic facial paralysis--a review.

A retrospective analysis of 23 cases of post-traumatic facial nerve injury has been done. Majority of the cases had a conductive or a mixed deafness. The Schirmer's test has been considered to be one of the main indicators to determine the site of injury. The mastoid segment of the facial nerve was found to be injured in 52% of the patients. The surgical approach in patients with post-traumatic facial nerve paralysis should be transmastoid. This can be combined with a middle fossa approach in patients with a positive Schirmer's test.

Facial Nerve↗
PubMed1991

Effect of instant preparation of betel nut (pan masala) on the oral mucosa of albino rats.

Paste made out of an instant betel nut preparation was painted into the oral cavity of 21 albino rats on alternate days for a period of six months. Biopsies were taken from the oral mucosa at the beginning of the study and every two months there after and compared histopathologically with those obtained from a control group of 14 albino rats. Mild to moderate loss of nuclear polarity and increase in keratoses, parakeratoses, inflammatory cell infiltration and vascularity were noted when compared to the control group. The increase in mitotic figures was statistically insignificant and no definite changes in pigmentation or atypical cells were seen. These findings suggest the possibility of mild leukoplakia. Submucosal collagen increased steeply and steadily throughout the study period and at the end of six months, 88.23 per cent of biopsies showed thickened and condensed sub-mucosal collagen, indicating submucous fibrosis.

Animals↗
PubMed1990

Synovial sarcoma of the nasopharynx.

A case of primary synovial sarcoma of the nasopharynx in a 28-year-old man is presented. The patient was treated with operation followed by radiotherapy and is free of recurrence or evidence of metastasis 40 months after treatment. Because of the extreme rarity of this tumor in this site, the importance of its recognition is stressed.

Adult↗
PubMed1990

Audiovestibular functions in rheumatoid arthritis.

Audiologic, middle ear impedance and vestibular function tests were administered to 25 patients with classical or definite rheumatoid arthritis and 25 normal control subjects of 30 to 50 years age group. Any possible influence of other common causes of hearing loss was avoided by carefully selecting the patients. Six patients had mild sensorineural hearing loss and another had bilateral mixed hearing loss. Results of tone decay test, speech reception threshold, speech discrimination score and short increment sensitivity index tests suggested cochlear pathology being responsible for the sensorineural hearing loss. There was no statistical correlation between hearing loss or otoadmittance abnormality and duration or activity of rheumatoid arthritis or positivity of rheumatoid factor. Electronystagmographic recording of saccades and bithermal caloric induced nystagmus revealed no significant abnormality.

Acoustic Impedance Tests↗
PubMed1989

Computed tomography for determining pathways of extension and a staging and treatment system for juvenile angiofibromas.

Computed tomography (CT) has changed the preoperative assessment protocol of juvenile angiofibromas as it shows the extent of the tumor and its pathways of extension. Hence, operation can be done sooner and with minimal blood loss. Using CT scanning in 22 patients with nasopharyngeal angiofibromas, we found different pathways of extension of the tumor. We report a new staging system and surgical approaches, based on the stage of the tumor.

Adolescent↗
PubMed1989

Primary tuberculosis of the tongue.

Primary tongue tuberculosis is an uncommon condition, and there is a paucity of such cases in the literature. We report a case of primary tuberculosis of the tongue in a 55-year-old man.

Humans↗
PubMed1989

Post laryngectomy complications and their mode of management--an analysis of 203 cases.

Two hundred and three laryngectomized patients have been evaluated for the possible causes of post operative complications. 58 out of 203 patients (28.5%) developed pharyngocutaneous fistula. Wound infection was present in 57 cases (28%). Two patients had flap necrosis and 12 patients developed dysphagia after surgery due to pharyngeal stenosis. The possible causes attributed to high occurrence of pharyngocutaneous fistula are, advanced nature of disease, preoperative radio therapy and wound sepsis. Prior to 1980, the incidence of pharyngocutaneous fistula in our series (Arora et al. 1983) was 41.6 percent. But it decreased to 13.7 percent between January 1981 to June 1987. The important factors which led to the decreased incidence of pharyngocutaneous fistula were thought to be the change of suture material for pharyngeal repair from chromic catgut to Vicryl, use of vacuum suction as a replacement of corrugated rubber drain and aseptic syringe drainage and postoperative coverage with broad spectrum antibiotics.

Adult↗
PubMed1989

Palatal glioma.

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Child, Preschool↗
PubMed1988

Correlation between high-resolution computed tomography and surgical findings in congenital aural atresia.

Congenital aural atresia poses a great challenge, even to a competent otologic surgeon, due to innumerable types of malformations affecting the conduction and perception of sound. Roentgenographic evaluation by plain roentgenography is inconclusive in most cases; polytomography is helping to some extent. Recent generations of high-resolution computed tomographic (CT) scanners are probably the best. Seven cases of unilateral and three cases of bilateral congenital aural atresia were evaluated with high-resolution CT. Subsequently, ten ears were operated on. Surgical findings were correlated with CT scan findings with respect to atresia plate, extent of pneumatization, ossicular anomalies, bony facial nerve canal, and inner ear. Use of CT scans bears considerable importance in the management of these types of cases. High-resolution CT scan, when targeted for maximal bony detail, is possibly the method of choice in congenital aural atresia when surgical correction is contemplated.

Adolescent↗