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Biomedical subjects

S Kristensen

Publications and source records attributed to S Kristensen.

At least 91 records · Page 5Linked to original sources

Immunoblastic sarcoma of the nasal cavity.

Malignant lymphoma is primarily a disease of interest to haematologists, but it occasionally presents a problem for otorhinolaryngologists. Sinonasal lymphomas are rare and potentially radiocurable malignant neoplasms. At initial presentation, the disease is most often localized in the sinonasal region and, with rare exceptions, the dominating cytohistological type is the immunoblastic sarcoma (B-cell type), previously termed reticulum cell sarcoma. The clinical manifestations may mimic more common and benign conditions and the diagnosis may be difficult. The present paper, emphasizes the need for biopsy to be performed early and carefully even in the case of apparently benign lesions.

Aged↗

Cervical intervertebral disc calcification in childhood.

A case of cervical intervertebral disc calcification in a child is presented. The condition is rare, the aetiology unknown and the prognosis good. Possibility for differential diagnosis are discussed and the importance of the otolaryngologist having a knowledge of the condition is emphasized.

Calcinosis↗

Trismus and carcinoma of the tonsil.

Carcinoma of the tonsil is the second most common neoplasm of the upper respiratory tract and a sore throat is the most frequent initial symptom. Trismus, which may be an accompanying sign, is only rarely the only presenting symptom. A case is presented.

Carcinoma, Squamous Cell↗

Intraoral lipoma. A rare cause of dysphagia.

Lipomas of the oral cavity are rare and in most cases asymptomatic. A case of lipoma in the floor of the mouth in a 89-year-old man, causing severe dysphagia and difficulty with speech, is presented. After surgical excision of the lipoma, the symptoms disappeared. Histologically, lipomas are composed of mature fat cells. Their aetiology is uncertain. Recurrence after surgical excision is unusual.

Aged↗

Thyroglossal cyst carcinoma.

A case of papillary thyroid carcinoma arising in a thyroglossal duct cyst is presented. The tumour is rare and is generally not expected preoperatively. The clinical and pathological characteristics are emphasized, the treatment is discussed, and the importance of excision of thyroglossal duct cysts is stressed.

Adolescent↗

Post-tonsillectomy haemorrhage. A retrospective study of 1150 operations.

The medical records of 1150 tonsillectomized patients were retrospectively reviewed for registration of the frequency of post-tonsillectomy haemorrhage in relation to sex and age of the patients, the indications for tonsillectomy, and the operative experience of the surgeon. The number of post-operative bleeds requiring surgery was 32 (2.8%) and occurred most frequently in young men and in patients with a history of previous peritonsillar abscess undergoing cold tonsillectomy. The frequency of haemorrhage in abscess tonsillectomy was not higher than expected. As previous studies have demonstrated that abscess tonsillectomy is associated with a minimal risk of spreading the infection or other serious complications, it is suggested that abscess tonsillectomy should be the preferable treatment of peritonsillar abscess.

Adolescent↗

Calcium, parathyroid hormone and calcitonin in normal pregnancy and preeclampsia.

Calcium, parathyroid hormone (PTH) and calcitonin (CT) in serum, and the fractional renal excretion of calcium (FECa) were determined in (1) normal pregnant women, (2) patients with preeclampsia, and (3) normal nonpregnant control subjects. Serum calcium, corrected for individual variation in serum protein, was reduced and FECa increased in the normal pregnant group when compared to the nonpregnant control group. In preeclampsia serum calcium did not differ significantly from the normal pregnant group, but FECa was considerably lower and also reduced below the level in the nonpregnant control group. PTH was slightly lower during normal pregnancy than after delivery, but did not deviate significantly from the nonpregnant control group; in preeclampsia PTH did not deviate significantly from the levels in normal pregnancy. CT was the same in the third trimester of pregnancy in both groups. Changes in serum calcium and FECa were not correlated to PTH or CT. It is concluded that both normal pregnancy and preeclampsia are accompanied by considerable alterations in calcium metabolism, that PTH and CT in both groups are mainly unchanged and at nonpregnant level, and that the increase and decrease in renal calcium excretion in normal pregnancy and preeclampsia, respectively, may be attributed to changes in kidney function.

Adolescent↗

Circulating immune complexes and hypertension in pregnancy.

Eighteen patients with pre-eclampsia, 10 patients with essential and 9 with transient hypertension during pregnancy, were investigated regarding circulating immune complexes by a Clq-binding assay and a PEG precipitation assay. The women were studied during pregnancy, 2 and 5 days after childbirth, and also 3 and 6 months afterwards. The frequency of circulating immune complexes was not significantly increased in any of the groups when compared with that in 18 normotensive pregnant control subjects and 19 non-pregnant controls. Thus Clq-binding and PEG-precipitable immune complexes are a feature neither of normal pregnancy, nor of pregnancy complicated by hypertension or pre-eclampsia.

Antigen-Antibody Complex↗