[Sphingomonas paucimobilis infection with underlying submandibular sialolithiasis]. / Submandibüler sialolitiazis zemininde Sphingomonas paucimobilis enfeksiyonu.

Sphingomonas paucimobilis (S. paucimobilis), is a gram-negative, aerobic, non-fermentative, oxidase (+) and catalase (+) bacterium. Although S. paucimobilis is isolated very rarely, it can cause both nosocomial and community-acquired infections. A patient admitted to our clinic had a complaint of swelling in the right mandibular region and pain increasing while eating for the previous week. Bimanual palpation revealed a painful swelling of 1x1x1 cm in size inside the right Wharton's duct. Via massage over the right submandibular gland, a purulent drainage came up from the opening of the Wharton's duct and it was cultivated and S. paucimobilis was isolated. There was no ultrasonographic evidence of calculi in the duct or in the gland, but during the right submandibular gland massage, two stones came out through the Wharton's duct. The infection was observed to be eradicated with a 14-day ampicillin-sulbactam treatment. In the control examination after six months, there were no pathological signs or symptoms and the ultrasonogram was normal. As far as we know, this is the first sialadenitis case with underlying sialolithiasis where S. paucimobilis was isolated.

Neonatal suppurative submandibular sialadenitis.

Neonatal sialadenitis of the submandibular gland is a very rare clinical entity. Information about the etiopathogenesis and management of the disease is very limited. Prematurity, prolonged gavage feeding and dehydration are the frequent causes. This report presents a rare case of isolated suppurative submandibular sialadenitis in a full-term newborn without any risk factors. Possible etiology, diagnosis and management of this uncommon disease are discussed.

[Submandibular sialadenitis in a 10 days old newborn].

We report a case of acute submandibular sialadenitis in a ten days old newborn. The disease was diagnosed at an early stage, therefore rapid antibiotic treatment was initiated, and no surgical intervention was needed. In a long term follow-up, a full recovery was observed. The authors reviewed the literature and describe the common etiologies and recommended treatment options for submandibular sialadenitis.

Neonatal suppurative submandibular sialadenitis.

Neonatal sialadenitis of the submandibular gland caused by Staphylococcus aureus is described in 2 full term newborns without any risk factors. Fifteen other newborns with isolated submandibular sialadenitis have been reported in the English language literature. Sialadenitis was caused by S. aureus in 87% and occurred primarily in premature gavage-fed neonates (87%).

Head and neck infections caused by Streptococcus milleri group: an analysis of 17 cases.

BACKGROUND: Streptococcus milleri group (SMG) is a common inhabitant of the mouth and gastrointestinal tract, and can be an aggressive pathogen causing abscess formation at various sites in the body. However, it has rarely been listed as a cause of head and neck infections. OBJECTIVES: The present study was performed to evaluate the clinical significance of SMG by reviewing the microbiology and clinical records of patients with SMG in head and neck infections retrospectively. STUDY DESIGN: A retrospective review of all patients diagnosed as having SMG bacterial infections at Onomichi General Hospital, Hiroshima, between the years 2001 and 2002 was performed; 17 patients developed head and neck infections with SMG. Here, we describe the clinical features and management of SMG in head and neck infection. RESULTS: The patient population consisted of 12 males and 5 females with a median age of 62 years (age range, 8-78 years). The sites of infection were as follows: maxillary sinus (n=6), peritonsillar region (n=4), subcutaneous (n=3), submandibular space-retropharyngeal space (n=1), deep neck-mediastinum (n=1), parapharyngeal space (n=1), submandibular space (n=1), tonsil (n=1), parotid gland (n=1), and masseter muscle (n=1). Ten cases (59%) were of suppurative diseases. Six cases (35%) had mixed SMG with anaerobe infection. Three cases showed deteriorating clinical courses, and all three of these cases were culture-positive for SMG with anaerobes. In addition, one deteriorating case showed gas gangrene regardless of repeated surgical debridement and intravenous antibiotic therapy; hyperbaric oxygen therapy improved this patient's condition. CONCLUSION: It is important to recognize SMG as a pathogen in head and neck infection. In addition, the care should be taken with infectious diseases caused by SMG with anaerobes as the patient's clinical course can deteriorate rapidly.

[Malakoplakia of the submandibular gland in a renal transplant patient]. / Malakoplakie de la glande sous-mandibulaire chez un patient transplanté rénal.

INTRODUCTION: Malakoplakia (MP) is a rare granulomatous disease, usually occurring in immunocompromised patients, linked to Escherichia coli infection. The lesions are usually located in the genitourinary tract, but there is a great variability in the topography and the clinical presentation. CASE REPORT: A 70-year-old diabetic kidney transplant patient under immunosuppressive treatment presented with a voluminous submandibular chronic lesion, involving the skin, associated with a burgeoning lesion of the oral mucosa. Histological examination of biopsies concluded to MP and bacteriological samples were positive for E. coli. Antibiotic treatment allowed for the regression of the lesion before surgical removal. Histological examination of resected material confirmed the diagnosis of invasive MP of the submandibular gland. DISCUSSION: The diagnosis of MP relies on histological examination, showing the presence of von Hansemann's cells and Michaelis- Gutmann bodies. The treatment is based on active antibiotics targeted against intracellular bacteria, possibly associated with surgery. We report the first case of MP involving the submandibular gland.

Neonatal suppurative sialadenitis: an important clinical diagnosis.

Neonatal suppurative sialadenitis is a condition causing infection of the salivary glands, most frequently caused by Staphylococcus aureus. The vast majority of cases reported in the literature have been in infants with recognised risk factors. This report presents two cases of neonatal sialadenitis in siblings, neither of whom had any predisposing characteristics. The aetiology, diagnosis and treatment of this condition are discussed. This report will also highlight the need for awareness of this condition and its inclusion in considered differentials for neck swelling in all infants.

Streptococcal submandibular cellulitis in young infants.

Six infants with streptococcal submandibular cellulitis and bacteremia were managed in our institution during a seven-month period. Five uncomplicated cases were caused by group B beta-hemolytic Streptococcus, and one rapidly progressive case of Ludwig's angina was caused by group A Streptococcus. Recognition of this characteristic clinical presentation of group B streptococcal infection may be beneficial in the management of such patients.

Bacteria and pathogenesis of human salivary calculus.

The exact cause of salivary calculus formation is unknown and the aim of this study was to ascertain whether bacteria play a role. Sialoliths from nine patients with chronic obstructive sialadenitis of the submandibular gland were analysed. Bacterial gene fragments were amplified from DNA extracted from salivary calculi by means of polymerase chain reaction using a universal bacterial primer pair. Comparative 16S ribosomal RNA sequence analysis was used for identification. We detected and identified oral bacteria (predominantly Streptococcus species) in all samples. The present results suggest a potential role for bacteria in the etiopathogenesis of sialolithiasis.

Cat-scratch disease: considerations for dentistry.

BACKGROUND: Cat-scratch disease, or CSD, results from inoculation of the gram-negative bacillus Bartonella henselae via a cat's scratch. A regional lymphadenitis, which usually is cervical, develops and may progress to suppuration. It is necessary to differentiate CSD from other lymphadenopathies. CASE DESCRIPTION: A patient who had close contact with a cat subsequently developed a localized, suppurative cervical lymphadenitis. As B. henselae was identified in 1992, the authors were able to confirm the existence of CSD serologically. Surgical drainage resulted in a successful resolution of the disease process. CLINICAL IMPLICATIONS: As patients with CSD may be seen in the dental office, an awareness of its symptomatology can prevent unnecessary dental intervention and facilitate early treatment.

Submandibular and disseminated zygomycosis (mucormycosis) in feeder pigs.

Submandibular and/or disseminated zygomycosis (mucormycosis) was diagnosed in 3 feeder pigs from 2 farrow-to-finish farms. Affected pigs were stunted and unthrifty. Each pig had a large unilateral submandibular granuloma replacing the mandibular lymph node on the affected side. Two pigs had disseminated lesions. One had an abscess on the serosa of the stomach; another had abscesses scattered throughout the liver and mesenteric lymph nodes. Impression smears were made of several masses and stained with blue-black ink. Examination of smears by light microscopy revealed coarse, infrequently septate, irregularly branching, mucoraceous fungi typical of a Zygomycete. Histologic examination of the submandibular masses revealed granulomas containing large numbers of mixed inflammatory cells, including giant cells. Mesenteric lymph nodes and liver abscesses had necrotic cores surrounded by fibrous capsules infiltrated by mixed inflammatory cells. Hyphae of a mucoraceous fungus were scattered throughout all masses. The 2 pigs submitted alive had marked serum hypoproteinemia, including hypoglobulinemia.

Cervicofacial actinomycosis: an unusual cause of submandibular swelling.

Two cases of cervicofacial actinomycosis, resulting in submandibular swelling, are presented. How actinomycosis may present under the guise of malignancy is well demonstrated. Factors predisposing to the condition, difficulties with diagnosis, isolation methods of the causative organism and treatment of the disease, are discussed.

[Tuberculosis of the submandibular gland. Apropos of a case and review of the literature]. / Tuberculose de la glande sous-maxillaire. A propos d'une observation et revue de la littérature.

Tuberculosis of the submaxillary gland is uncommon. Surgery is often necessary. Histologic analysis and the bacteriology made the diagnosis.

Actinomycosis of submandibular gland: an unusual presentation.

An unusual presentation of oro-facial actinomycosis, mimicking the clinical appearance of a malignant lesion is reported. The patient, a 74-year-old female, presented with a right submandibular mass, which slowly grew in size over a period of about 2 months, and a modest dysphagia. A painless cervical mass was palpable over the submandibular region. The rhino-pharyngo-laryngeal region, explored by flexible fiberoptic examination, was normal. At ultrasonography, a 2x2 cm infiltrating dyshomogeneous mass, involving the right submandibular gland, was visible. No connection with adjacent organs was found. There was no associated cervical lymphoadenopathy. Ultrasound-guided fine-needle aspiration cytology, performed on lesion, revealed no evidence of malignancy. The presence of characteristic colonies of actinomyces infection was found. The patient was treated initially with tetracycline chloridrate 100 mg: 1 tablet every 12 hours for 7 weeks, but a repeat ultrasonography showed no resolution. A further fine-needle aspiration cytology showed no actinomyces infection in the specimen. The patient was treated with methylprednisolone, 20 mg every 24 hours, for 5 days. After steroid treatment, the patient has been well and, upon repeat ultrasonography, total resolution of the submandibular lesion was confirmed. In conclusion, the clinical presentation of cervicofacial actinomycosis is variable and may mimic a malignant lesion or chronic granulomatous infections. Diagnostic and therapeutic findings are discussed.

[Neonatal submandibular sialadenitis]. / Neonatal submandibulaer sialoadenitis.

Submandibular sialadenitis is very rare in the neonatal period. Only a few cases have been reported of isolated submandibular gland infection without the involvement of the parotid gland. In the present case, a premature boy, fourteen days old, developed clinical signs of infection and bilateral submandibular erythematous swelling. Pus was expressed from the submandibular ducts. Culture yielded Staphylococcus aureus. He was treated with intravenous netilmicin and cefuroxin. The infection resolved after antibiotic therapy.

[Big profound cervical abscess in a diabetic patient]. / Gran absceso cervical profundo en paciente diabético.

With antibiotics and an increasing dental care and hygiene, the profound neck spaces infections have decreased their incidence. Nevertheless we can found them in the clinical practice, and they present a big morbidity and severe complications. We present in this paper a case of profound cervical abscess in a diabetic patient, discussing the clinical and therapeutics aspects.

Infecciones cervicofaciales graves. Nuestra experiencia en el Hospital Universitario Ramón y Cajal de Madrid / Severe cervicofacial infections. Our experience in Ramón y Cajal University Hospital, Madrid

INTRODUCCIÓN: Las infecciones cervicofaciales constituyen un motivo de consulta muy frecuente en los servicios de Urgencias de nuestro país, siendo con frecuencia causa de gran morbilidad y de importantes complicaciones, incluyendo el compromiso de la vía aérea. Por todo ello, un diagnóstico y tratamiento precoces son de vital importancia. El objetivo principal es realizar un estudio observacional retrospectivo sobre los pacientes diagnosticados de infección cervicofacial grave en nuestro centro, analizando múltiples variables demográficas, el tratamiento administrado, la duración del ingreso y las complicaciones observadas. MATERIAL Y MÉTODOS: Estudio observacional descriptivo retrospectivo sobre una muestra de 47 pacientes diagnosticados de infección cervicofacial grave en nuestro centro entre abril de 2016 y marzo de 2018. Se recogen y analizan múltiples variables: sexo, etiología, clínica asociada, aislamiento microbiológico, tratamiento, comorbilidades, duración de ingreso y complicaciones asociadas. RESULTADOS: El 51 % de la muestra fueron pacientes menores de 50 años sin comorbilidades asociadas. Las comorbilidades más frecuentes fueron los hábitos tóxicos (tabaco y alcohol), hipertensión arterial y diabetes. Respecto a la etiología, el 91 % fueron odontogénicas, siendo los cordales inferiores las piezas dentales afectadas con mayor frecuencia (79,06 %). La clínica característica de presentación fue la tríada de tumefacción facial, dolor y trismus (hasta el 60 %). El espacio cervicofacial afectado con mayor frecuencia fue el submandibular (56 %). El aislamiento microbiológico mostró que la mayoría fueron infecciones polimicrobianas mixtas (18 de 38 aislamientos) con predominio de los grupos Streptococo y Prevotella. Las complicaciones encontradas fueron: dos pacientes con obstrucción de vía aérea superior que precisaron traqueostomía previa intubación, un hematoma postquirúrgico, tres reintervenciones por mala evolución clínica y un paciente con mediastinitis. CONCLUSIONES: De los resultados obtenidos podemos concluir que la etiología odontogénica es la más frecuente, siendo el espacio submandibular el más afectado. En el Hospital Ramón y Cajal de Madrid, la mayoría de las infecciones cervicofaciales graves son mixtas con microrganismos aislados aerobios y anaerobios. El tratamiento combinado con cirugía y antibioterapia intravenosa fue de elección. Amoxicilina-Clavulánico fue el antibiótico más utilizado. Las complicaciones evolutivas graves son poco frecuentes con un tratamiento adecuado

INTRODUCTION: Cervical infections are a very common reason for consultation in the emergency services of our country. However, in certain cases, these infections are a cause of a great morbidity and important complications, including the compromise of the upper airway. For all these reasons, early diagnosis and treatment are of a great importance. The main objective is to perform a retrospective study of patients diagnosed with severe cervicofacial infection in our department, analyzing multiple demographic variables, treatment administered, time of hospitalization and complications observed. MATERIAL AND METHODS: Retrospective descriptive observational study based on a sample of 47 patients diagnosed with severe cervicofacial infection in our center between April 2016 and March 2018. Multiple variables were collected, among which are: sex, etiology, associated symptoms, microbiological isolation, treatment established, comorbidities, time of hospital admission and complications. RESULTS: 51 % of the sample were patients under 50 years of age without comorbidities. The most frequent comorbidities were toxic habits (tobacco and alcohol), hypertension and diabetes. Regarding the etiology, 91 % were odontogenic, being the third inferior molars the most frequently affected (79.06 %). The characteristic clinical presentation was the triad of facial swelling, pain and trismus (up to 60 %). The most frequently affected cervicofacial space was the submandibular space (56 %). The microbiological isolation showed that the majority were mixed polymicrobial infections (18 of 38 isolates) with predominance of the Streptococcus and Prevotella groups. The complications that we found were: two upper airway obstructions, a cervical bleeding, three reinterventions for a bad clinical evolution and a patient with mediastinitis. CONCLUSIONS: We can conclude that odontogenic etiology is the most frequent in severe cervicofacial infections, with the submandibular space being the most affected. Most of severe cervicofacial infections in Ramón y Cajal Hospital were polymicrobial and mixed infections. The combined treatment with surgery and intravenous antibiotic therapy was the therapeutic option chosen for all patients. Amoxicillin-Clavulanic was the most used broad-spectrum antibiotic. Complications are uncommon with an adequate treatment

Microbiological examination and antibiotic sensitivity of infections in the head and neck. Has anything changed?

Because of the growing concern about antibiotic resistance, we aimed to investigate whether the microbiological picture and antibiotic sensitivity of infections in the head and neck have changed in the last 30-40 years. We retrospectively studied 150 patients admitted for inpatient treatment of infections in the head and neck, and searched published reports from the last 30 - 40 years for comparison. There were 85 male and 65 female patients (mean age 39 years, range 1-95). Most infections originated from the teeth (n = 111) and skin (n = 16), and the submandibular (69%) and buccal (67%) spaces were involved most often. Multiple spaces were involved in 94 patients. Swabs were taken for culture and sensitivity in 102 cases, and microorganisms were isolated in 91 (89%), of which 67 (74%) were aerobic infections and 24 (26%) were anaerobic. Bacteria were isolated in 87 (96%) cultures of which 60 (69%) were Gram-positive. Gram-positive cocci were isolated in 62% of cultures. The most common bacteria isolated were streptococci. Seventy percent of the bacteria were sensitive to amoxicillin and 84% to amoxicillin and metronidazole; 14% (Staphylococcus aureus from infections of the skin) were resistant to penicillin. A comparison of our results with those found in previous reports shows no significant change in the microbiological picture and antibiotic sensitivity of odontogenic infections in the head and neck over the last 30 - 40 years. Amoxicillin still treats these infections effectively.