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On admission, she was tachycardic, had cool peripheries with normal central perfusion, pulse volume and blood pressure. Echocardiography was requested for possible atypical Kawasaki disease and it demonstrated a large echogenic pericardial effusion with fibrous strands, indicative of purulent pericarditis, along with evidence of impending temponade (figure 1). Purulent pericarditis is a life-threatening condition with increased risk of constrictive pericarditis.6 Treatment delay has been associated with high mortality due to cardiac tamponade.6 Clinical features of purulent pericarditis include chest pain, tachycardia (out of proportion to the degree of fever), hypotension, pulsus paradoxus tachypnoea and pericardial friction rub.

Subretinal cysticercosis presenting with anterior uveitis and hypopyon is rare. A 7-year-old boy presented with pain and hypopyon in the right eye. Ultrasonography showed a cystic lesion with scolex. Because visual prognosis was poor, he was treated conservatively. Timely diagnosis would facilitate early therapy and prevent visual loss. Subretinal cysticercosis presenting with anterior uveitis and hypopyon is rare. A 7-year-old boy presented with pain and hypopyon in the right eye. Ultrasonography showed a cystic lesion with scolex. Because visual prognosis was poor, he was treated conservatively. Timely diagnosis would facilitate early therapy and prevent visual loss. [[ J Pediatric Ophthalmol Strabismus. 2015;52:e17–e19.]

A 10-year-old girl presented with episodes of migraine. A nasal mass was found randomly during work-up. Interpreted as an osteoma, the mass was removed during endoscopic surgery. However, the histopathological examination turned out to be a pyomucocele in the right middle turbinate, which is an extremely rare yet benign condition in children.

Groin sepsis requiring mesh removal is said to be a rare complication of tension-free inguinal hernioplasty. Furthermore, late-onset deep-seated prosthetic infection seems to be an unexpected complication. The aim of this study was to report our experience on late mesh infection occurring years after open hernia repair. Between 1998 and 2005, 1,452 patients (954 men), median age 64 years (range 19-89) underwent groin hernioplasty using a tension-free polypropylene mesh technique. Five patients (0.35%) appeared with late mesh infection (between 2 and 4.5 years postoperatively). The patients' records were retrospectively reviewed for the purpose of this study. Antibiotic prophylaxis had been given in the five patients, while none of them had a prior history of wound infection. The patients were re-operated and the meshes were removed. Pus was found in three patients and Staphylococcus aureus was isolated in one. There was no hernia recurrence and none of the patients had chronic groin pain for a period of 6-44 months postoperatively. From the results of this study, it appears that late-onset deep-seated prosthetic mesh infection is an important complication which has been rarely reported upon. Its true incidence is yet to be established. Late graft infection does not seem to correlate to neither the administration or not of antibiotic prophylaxis, nor to the presence or not of previous superficial wound infection. Furthermore, graft infection does not seem to correlate to neither the type of mesh inserted, nor to the fixation material. With the increasing use of synthetic materials for primary and recurrent hernia repair, the number of patients presenting with late mesh infections is likely to increase.

The following case study reports three cases of neonatal bacterial parotiditis observed over a period of seven months. Diagnosis is often based on patient's clinical features: they typically include hyperthermia, swelling, erythema, warmth as well as local tenderness and purulent discharge at Stensen duct during the massage of the parotid. The clinical diagnosis is confirmed by ultrasound and by culture of parotid purulent secretion. They are mainly of nosocomial origin and are generally caused by prematurity and dehydration. Early treatment improves patient outcome. Risk factors such as age should lead clinicians to start empiric antibiotic therapy first and then antibiotic therapy based on direct examination of pus extracted from Stensen duct. Staphylococcus aureus, Streptococcus Viridans and anaerobic germs are most commonly isolated. Acute parotiditis are extremely rare in the neonatal period: less than 50 cases have been reported in the literature. We here report three rather peculiar cases. The diagnosis was suspected on the basis of signs of local inflammation.

We present the case of a healthy young man who developed pyogenic myositis, an infection that is rare in the USA. He had no prior medical conditions except for an obsessive-compulsive disorder and skin picking disorder resulting in multiple superficial skin infections. He presented to our hospital with acute back pain. He was found to be septic with fever, tachycardia and elevated white cell counts. Imaging revealed evidence of myositis in the gluteal region. He was treated with antibiotics and fully recovered. It is likely that the skin picking disorder and the recurrent superficial skin infections are responsible for the development of this infection.

Pyopericardium is a rare condition with a high mortality rate in which infection propagates in the pericardial space, leading to a pus filled pericardial effusion and cardiac tamponade, which can cause cardiogenic shock and death. We present a case of a previously healthy woman of 52, who was admitted with a severe lower respiratory tract infection that eventually led to a pyopericardium. The diagnosis of pyopericardium was delayed due to masking of symptoms by her underlying infection, sepsis and an upper gastrointestinal bleed that the patient suffered during the admission, requiring an emergency gastroscopy. The pyopericardium was considered when ST elevation was seen on an ECG and an ECHO discovered a large pericardial effusion causing tamponade. An emergency pericardiocentesis drained frank pus. Treatment with intravenous antibiotics, frequent pericardial drainage and a pericardectomy led to an excellent outcome, and a full recovery.

An otherwise healthy male newborn infant was admitted directly from the delivery room because of multiple pustular lesions spread throughout the body just after his birth.

Some cases of suppurative mesenteric adenitis have already been described in the literature but not associated with intussusception. We describe the case of a 3-year-old boy presenting to the department of surgery at the University Hospital of Lubumbashi with bowel obstruction. He was visited elsewhere, in the previous 12 days, for diarrhea, vomiting, fever, coma and treated for cerebral malaria and blackwater fever. Surgery revealed an ileal intussusception and a suppurative mesenteric adenitis whose pyoculture revealed the presence of Enterobacter cloacae, sensitive to norfloxacin. We performed desinvagination, sucked the pus out into a syringe and excized completely the site of suppurative adenitis. The evolution of patient was good. The clinician must know that the association between suppurative mesenteric adenitis and intussusceptions exists. The diagnosis is not easy and there is the risk of developing acute peritonitis due to its fistulation in the abdominal cavity.