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Anisakiasis of the tonsils.

A six-year-old Indian girl presenting with clinical features of chronic recurrent tonsillitis, had a tonsillectomy. Histopathology revealed a cross-section of an Anisakis worm in the tonsil. This report documents a new location in the human host for this rare parasite.

Anisakiasis↗

Heterotopia of the tonsil.

The histopathological finding of heterotopias or choristoma is rare. This paper describes two patients who presented with chronic recurrent tonsillitis and underwent tonsillectomy. Histological examination revealed heterotopic cartilage in the tonsil of one patient and bone in that of the other.

Adult↗

Giant primary amyloidoma of the tonsil.

A case of giant amyloidoma in the left tonsil with extensive osseous metaplasia and a scanty and patchy monoclonal population of IgG Kappa plasma cells, is presented. Localized tumoral amyloidosis is a rare, benign tumour of the upper aerodigestive tract. Organ-limited amyloidosis has been shown to be confined to various systems but, since the lesion was first described, only four cases situated in the tonsils have been reported in the English literature, and none of these had either osseous metaplasia or a monoclonal population of IgG Kappa plasma cells.

Aged↗

Central nervous system complications of acute tonsillitis.

Acute tonsillitis is a common infection of early childhood which may even run a self-limiting course without antibiotic therapy in some cases. Complications are encountered infrequently and rarely assume a life-threatening propensity. Central nervous system involvement has not to our knowledge been described in association with tonsillitis without local abscess formation. We describe three cases in which acute tonsillitis/peritonsillitis was complicated by major central neurological sequelae. The neurological complications encountered in young previously healthy adults were: facial palsy and hemiplegia; superior sagittal sinus thrombosis with communicating hydrocephalus and papilloedema; Guillain-Barré syndrome and facial palsy. The pathogenesis and management is discussed. All patients made satisfactory recoveries, though with minor residual neurological disabilities.

Adolescent↗

An unusual structure of venules in tonsils of the soft palate of young pigs.

In tonsils of the soft palate of pigs high endothelial venules (HEV) occur throughout the parafollicular region. In some regions of the venules the endothelial lining is uniformly high; in other areas, mainly the nuclear region of the endothelial cell protrudes into the lumen and the cytoplasmic region is attenuated. In this portion of the venule endothelial cells may traverse the lumen of the vessel to form intravascular bridging processes. The endothelial cells are characterised by pinocytotic vesicles, many surface microvilli, cytoplasmic processes and local cell-cell contacts with adjacent endothelial cells. These specialised HEV may play a role in the unusual pattern of lymphocytes from tonsillar tissue into blood. In the tonsils of the soft palate of pigs, HEV may mediate both lymphocyte migration to and from the lymphoid tissue. Further investigation is required to determine the importance of these 2 migration pathways.

Animals↗

Ultrastructural characteristics and lectin-binding properties of M cells in the follicle-associated epithelium of chicken caecal tonsils.

To clarify the nature of M cells, the detailed ultrastructural characteristics and lectin-binding properties of M cells were investigated in follicle-associated epithelium (FAE) of chicken caecal tonsils. M cells presented various outlines from columnar to dome shaped. Their polymorphism was dependent on the number of harboured intraepithelial migrating cells. The lighter and larger nuclei of M cells were situated at more apical levels in the epithelial lining compared with those of neighbouring microvillous epithelial cells. The microvilli, which were significantly shorter and thicker than those of adjacent microvillous epithelial cells, were sparsely distributed or completely absent on the apical surfaces of M cells. In general, the apical cytoplasm of M cells without microvilli protruded slightly into the intestinal lumen. Numerous small vesicles were often contained in the apical cytoplasm. The numerous small invaginations of the apical and lateral cell surfaces suggested active transportation of luminal substances. No canaliculi existed in the apical cytoplasm of M cells whereas they were often detected in the neighbouring microvillous epithelial cells. A noteworthy finding was the frequent detection of multivesicular bodies in the apical cytoplasm of M cells. These multivesicular bodies suggest some degradation of ingested luminal substances during transcytoplasmic transportation. WGA and 4 other lectins strongly reacted with all epithelial cells except for M cells, this negativity suggesting a means of detecting M cells in chicken caecal tonsils. Three lectins, DSL, ConA and Jacalin, reacted weakly with the glycocalyx on M cells. The positive reactivity might allow chicken M cells to be utilised for specific antigen delivery into the mucosal immune system in some parenteral vaccinations.

Animals↗

[Acute tonsillitis--peritonsillitis--paratonsillar abscess: Differential diagnosis by flexible endosonography].

The role of flexible endosonography in diagnosis of acute tonsillitis and their complications was investigated in 59 patients. Our results show that flexible endosonography enables the examiner to differentiate acute tonsillitis from peritonsillitis and paratonsillar abscess. In particular, abscesses of retrotonsillar spread possibly leading to life-threatening complications can be detected in an early stage.

Acute Disease↗

[Langerhans cell histiocytosis of the tonsil].

Langerhans cell histiocytosis (histiocytosis X) of the tonsil is a rare disorder of histiocytic proliferation with a broad spectrum of clinical symptoms. We report on a case of a solitary histiocytosis of a unilateral tonsillar palatine. To exclude a mesenchymal tumour a 32-year old male with a hyperplasia of the left tonsil underwent surgery. The histopathological examination revealed a solitary infiltration of Langerhans cells. We found a morphologically remarkable intraepithelial hyperplasia of Langerhans cells (S-100 protein positive) on contrast to the opposite side. The CT scans of the neck, thorax, abdomen and pelvis and the bone marrow puncture could not detect any further manifestation of the disease. Therefore, we refrained from systemic therapy. Up to now the patient is without any relapse of the disease for a period of 16 months.

Adult↗

[Detection of Epstein-Barr virus in the tonsils in infectious mononucleosis].

Tonsils of 50 patients with infectious mononucleosis were examined for the presence of Epstein-Barr virus nuclear antigens (EBNA) and in 11 cases for the presence of Epstein-Barr virus (EBV) nucleic acid sequences. In tonsillar tissue of 42 patients less than 1 to 40 per cent EBNA-positive cells could be demonstrated by anticomplement immunofluorescence. 10 out of 11 tonsils examined by in situ hybridization contained less than 1 to 50 per cent cells with EBV nucleic acid sequences. The histological examination indicated that cells labelled by in situ hybridisation are in the majority proliferating B-lymphocytes and to a small extent cells of tonsillar epithelium.

Adolescent↗

[5-day therapy of bacterial pharyngitis and tonsillitis with cefixime. Comparison with 10 day treatment with penicillin V. Cefixime Study Group].

160 children aged 1 to 12 years with clinical diagnosis of bacterial pharyngitis and/or tonsillitis were treated either with cefixime ready-to-use-suspension or penicillin V in an open, controlled and randomized multicenter study. Before treatment a rapid antigen detection test was accomplished and throat swabs were taken. After randomization, the children were either treated for 5 days with 8 mg cefixime/kg bodyweight ready-to-use suspension once daily or with 20,000 I.U. penicillin V/kg bodyweight t.i.d. also administered as suspension. The data of 151 children could be evaluated for clinically efficacy. In the cefixime-group 86.7% of the children were cured and 9.3% significantly improved. After initial improvement, in one child (1.3%) a relapse occurred and in the two remaining children (2.7%) therapy failed. 90.8% of the patients treated with penicillin V were cured, 6.6% improved and in one child each a relapse was registered resp. therapy failed. Complete microbiological data were available in 137 patients. In the cefixime-group in 82.6% of the patients the pathogens were eradicated. The elimination rate in the penicillin-group was 88.2%. At the follow-up 3-4 weeks after end of treatment 6 relapses were seen in the cefixime-group, and 8 in the patients treated with penicillin. Both regimes were safe. Mild to moderate adverse events at least possibly related to the study medication were seen in only 4 children treated with cefixime and in 5 treated with penicillin. A 5 day treatment of bacterial pharyngitis and tonsillitis with cefixime was as effective as a ten day treatment with penicillin V.

Cefixime↗

[Effectiveness and tolerance of cefixime in comparison with penicillin V in bacterial pharyngitis and tonsillitis in children. Cefixime Study Group].

154 children aged 2 to 12 years with clinical diagnosis of bacterial pharyngitis and/or tonsillitis and--in most of the patients--a positive enzyme immunoassay for group A beta-hemolytic streptococci before therapy were enrolled in this open controlled randomized and multicenter trial. The children received either 8 mg/kg bodyweight cefixime once daily or 20,000 I.E. pencillin V/kg bodyweight t.i.d. Clinical evaluation and microbiological tests were carried out before treatment and 1-5 days after end of the treatment. 3-4 weeks after end of the treatment the rate of relapses was evaluated. The data of 149 children could be evaluated for clinical efficacy. In the cefixime group 93.3% of the children were cured and 6.7% improved compared to 89.2% and 10.8%, respectively, in the penicillin V group. Complete microbiological data were obtained from 136 patients. The eradication rate was 82.7% in the cefixime group and 77% in the group of patients treated with penicillin V. At follow up relapses were seen in 7 of the cefixime treated patients and in 6 of those receiving penicillin V. Mild side effects were reported by 4 patients in the cefixime group and by 3 children treated with penicillin V (1 drop out each). These results show that cefixime once daily is at least as effective as penicillin V t.i.d. in pharyngitis and tonsillitis in children. Both compounds are well tolerated.

Anti-Bacterial Agents↗

Incidence of complications for subtotal ionized field ablation of the tonsils.

OBJECTIVE: Ionized field ablation, or coblation-assisted subtotal tonsillectomy, has been described as a new alternative technique for the management of tonsillar disease. This study was designed to review the incidence of complications in patients undergoing this procedure. STUDY DESIGN: A 10-surgeon retrospective chart review of the intraoperative and postoperative complications of patients undergoing ionized field ablation subtotal removal of tonsils was performed. Postoperative pain, dietary restrictions, and activity level were not reviewed. RESULTS: Of the 528 patients who underwent ionized field ablation of their tonsils, the incidence of intraoperative and postoperative complications compared favorably with those reported in retrospective studies in the literature for traditional subcapsular tonsillectomy. Significant postoperative bleeding occurred in less than 1%, and only 1 patient required surgical control of bleeding in the operating room. No patients required transfusions of any blood products. CONCLUSIONS: Ionized field ablation subtotal tonsillectomy may offer an alternative to traditional subcapsular tonsillar surgery with a decreased incidence of postoperative complications. Further study is necessary to establish the complication rate of this technique.

Adolescent↗

Adrenergic and acetylcholinesterase-positive innervation of palatine tonsils in mammals.

Innervation of human, feline and rabbit palatine tonsils was investigated. Adrenergic nerve components were visualized by formaldehyde-induced fluorescence of catecholamines and 5-HT, or by glyoxylic acid fluorescence, whereas acetylcholinesterase (AChE)-positive nerve structures were demonstrated by the direct thiocholine method. The largest density of adrenergic and AChE-positive nerve profiles was found in the adventitia of arterial branches in the fibrous capsula and septa, mainly in the form of periarterial nerve plexuses of different density. Fine nerve fibres lined the wall of small arteries which penetrated into extrafollicular lymphoid tissue and marginal layers of follicles. It is concluded that there are significant species-specific differences related to density, nature and topographic relations of adrenergic and AChE-positive nerve fibres in the various structural parts of palatine tonsils.

Acetylcholinesterase↗

Different Yersinia enterocolitica 4:O3 genotypes found in pig tonsils in Southern Germany and Finland.

The distribution of different genotypes of Y. enterocolitica 4:O3 strains recovered from pig tonsils in Southern Germany and Finland in 1999-2000 was investigated. A total of 96 and 207 Y. enterococolitica 4:O3 isolates recovered from 47 and 66 tonsils of finishing pigs in Germany and Finland, respectively, were characterised with PFGE using NotI enzyme. In all, 39 different NotI profiles were obtained, only one of which, NB1, was found in both Germany and Finland. All strains were further characterised with ApaI and XhoI enzymes. When the 54 German and 74 Finnish strains were characterised with all three enzymes, 51 genotypes were obtained. The 23 genotypes found in German strains differed from the 28 found in Finnish strains. These results indicate that Y. enterocolitica 4:O3 genotypes have a differential geographical distribution and thus can be used in epidemiological studies.

Abattoirs↗

Report of an atypical case of leishmaniasis presented as acute tonsillitis in an immunocompetent patient.

Visceral leishmaniasis typically presents with symptoms such as fever, enlargement of the spleen and the liver, hypergammaglobulinaemia and infection of the bone marrow resulting in anaemia and leukopenia. The disease is sporadic in the countries of the Mediterranean basin. We report an unusual case of acute tonsillitis due to tonsillar leishmaniasis, in an immunocompetent 34-y-old male patient. Diagnosis was confirmed by serological tests and histopathological examination following biopsy of the right tonsil. The patient was successfully treated with liposomal amphotericin-B.

Acute Disease↗

Tonsillitis and respiratory infections of viral aetiology in a developing country.

Among 75 clinically diagnosed cases of tonsillitis, 55 (73.3%) were found to be of viral aetiology. Serological and virological investigations identified adenovirus as the main causative agent in children as well as in adults. In only two instances, both in children, was an association with respiratory syncytial virus (RSV) in tonsillitis detected, an extremely rare finding. A cross-sectional sero-epidemiological study of respiratory infections caused by adenovirus, RSV, influenza (A,B) and para-influenza (types 1,2,3) viruses was carried out in 289 Saudi children (newborn to 15 years of age) and 86 adults (healthy male blood donors and pregnant women) using a single serological technique. In children as well as in adults, adenoviruses were the most predominant respiratory pathogens, with no marked variation in age-specific antibody prevalence rates.

Adenovirus Infections, Human↗

Predictors for spread of clinical group A streptococcal tonsillitis within the household.

OBJECTIVE: The objectives of this study were to explore how frequently group A streptococci (GAS) were giving additional cases of clinical GAS tonsillitis within the households and to analyse predictors for such spread of GAS infection. SETTING: Two Norwegian general practice populations in Stokke and Kongsberg communities. PATIENTS: 110 households with at least one member with sore throat lasting less than 7 days, and GAS demonstrated in throat culture. Among the 110 index patients 51 (46%) were parents, 35 mothers and 16 fathers; 23 were children 6 years and younger, while 36 were children aged 7-15 years. MAIN OUTCOME MEASURES: Frequency of spread of clinical GAS infection to another household member within 4 weeks. Distribution of age and size of household in families with and without spread of GAS infection. RESULTS: In 30 (27%) households one or more new cases of GAS tonsillitis was found, adding 40 new infections. No spread of GAS disease was found in households with only adult members. A significantly higher proportion of spread was found in households with 4 or more members compared with households with fewer members, and low age of the index person. Short duration of symptoms before seeing a doctor was also associated with spread of GAS. In a logistic regression analysis carried out in the households with children, short duration of symptoms before diagnosis and treatment and low age of index person were significantly associated with spread of the infection. CONCLUSIONS: Even with standard penicillin treatment, GAS infection is frequently spread within households, and most frequently in households with children and many members.

Adolescent↗

Atypical hemophagocytic lymphohistiocytosis following bacterial tonsillitis in acute lymphoblastic leukemia.

We report a rare case of a cute lymphoblasticleukemia (ALL) who developed dyspnea, neurological disturbance with illusions, pancytopenia, phagocytosis and coagulation disturbances following bacterial tonsillitis. The values of soluble interleukin-2 receptor (sIL-2R), IL-6 and IL-8 were also elevated. Her clinicolaboratory findings were similar to hemophagocytic lymphohistiocytosis (HLH), which is a cytokine disease induced by activated T cells and macrophages. Atypical HLH following bacterial tonsillitis should be kept in mind in leukemia patients.

Antigens, CD↗