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Infected cephalhaematoma in a five-week-old infant - case report and review of the literature
© The Author(s). 2016
Received: 8 June 2016
Accepted: 27 October 2016
Published: 4 November 2016
A cephalhaematoma is usually a benign condition which resolves spontaneously. Nevertheless, there is a small risk of primary or secondary infection and diagnosis of this condition is challenging. The purpose of this article is to summarise risk factors, clinical criteria, pathogenesis, appropriate investigations and treatment methods for infected cephalhaematomas in infants.
A 5-week-old infant presented with fever and a non-tender cephalhaematoma without local signs of inflammation. The inflammatory markers in blood were elevated. Urine, blood and cerebrospinal fluid cultures were sterile. The raised inflammatory markers did not decrease under antibiotic treatment. An aspirate of the cephalhaematoma grew Escherichia coli. A debridement and evacuation of the haematoma was performed and the infant was treated with antibiotics for 11 days. The infant did not show any sequelae on follow-up visits.
We present a case of an infected cephalhaematoma with Escherichia coli in a 5-week-old infant. Diagnosis of an infected cephalhaematoma is challenging. Infection should be suspected if infant present with secondary enlargement of the haematoma, erythema, fluctuance, skin lesions or signs of systemic infection. Inflammatory markers and imaging have limited diagnostic power. The main associations with infection of cephalhaematomas are instrumental assisted deliveries and sepsis, followed by the use of scalp electrodes, skin abrasions and prolonged rupture of membranes. Although, aspiration is contraindicated in treatment of cephalhaematomas, it needs to be performed when an infection is suspected. Escherichia coli are the most frequently isolated bacteria from infected cephalhaematomas.
A cephaelhaematoma is defined as a subperiosteal haemorrhage in a newborn secondary to birth trauma. It occurs in 1–2 % of spontaneous vaginal deliveries and 3–4 % of forceps or vacuum-assisted deliveries . Usually, it is a benign condition which resolves spontaneously over weeks without any treatment. Possible complications are hypotension, anaemia, jaundice or exostosis . Moreover, there is also a potential risk of either primary infection through skin lesions or secondary infection through bacteraemia.
We present an illustrative case of an infant with an infected cephalhaematoma which was initially misdiagnosed. We added a literature review summarizing clinical presentation, risk factors, investigations results and treatment of previously reported cases.
On follow-up one week later, a 2 × 2 cm sized, fluctuant, reddened superimposed area with blisters had formed on the cephalhaematoma. A diagnostic tap was done and the girl was started on intravenous cefuroxime 150 mg/kg/d. On the next day a debridement and evacuation of the haematoma was performed. The culture of the aspirate grew Escherichia coli. According to the antibiotic suspectibilities the treatment was changed to amoxicillin 150 mg/kg/d for total duration of 11 days. On follow-up four months later, the girl was well. There were no residual local findings and the neuropsychological development was normal.
A literature review was performed using Medline and Web of Science (1950 to January 2016) with the search terms: (cephalhematoma OR cephalhaematoma OR cephalohematoma) AND (infected OR infection) AND (treatment OR management). References were hand-searched for additional articles. Criteria for inclusion of publications were: (i) infants less than 4 months of age, (ii) case reports supplying sufficiently detailed clinical, diagnostic and therapeutic data, (iii) publications in English, Spanish, Italian, French or German. A total of 36 publications containing 42 case reports plus our case were included in the review [1, 3–37]. Descriptive statistical analysis was performed analysing demographic data, risk factors, clinical presentation, investigation results and treatment. Neonates were classified as preterm babies when born at a gestational age of less than 37 weeks. Prolonged rupture of membranes was defined as rupture ≥ 18 h before delivery. Fever was defined as a body temperature ≥ 38 °C and leucocytosis as a total white blood cell count ≥ 15 × 109/l. Infants were categorised as non-traumatic cases when delivered spontaneously without the use of a scalp electrode and in absence of skin abrasions. The time of diagnosis was defined as the time when the percutaneous tap was performed. The diagnosis of sepsis was made by positive blood cultures and of meningitis by positive cultures from cerebrospinal fluid. Osteomyelitis was either diagnosed when osteolytic lesions were present on skull X-rays or lytic bone changes on computed tomography images.
Demographic and clinical characteristics of the 43 infants with infected cephalhaematomas
Number of patients (%)
Prolonged rupture of membranesb
Urinary tract infectionc
Location of cephalhaematoma
Location not specified
Side not specified
Reasons for presentation
Incision and drainage
Aspiration followed by incision and drainage
Aspiration followed by debridement and evacuation
Additional bone re-movement
Sinus venous thrombosis
Local findings indicating infection were secondary enlargement (n = 25, 58 %), erythema (n = 25, 58 %), tenderness (n = 17, 40 %), fluctuance (n = 13, 30 %) or skin abrasions (n = 9, 21 %). Systemic findings included fever (n = 28, 65 %), leucocytosis (n = 19, 44 %) or irritability (n = 11, 26 %). The white blood cell count was available from 23 patients, the median was 18 (range 5.5–34.5, mean 17) × 109/l. The C-reactive protein levels were available from 14 infants, the median was 166 (range 40–280, mean 168) mg/l.
Twenty-six percent (n = 11) of infants were diagnosed with meningitis. The median age at time of diagnosis was 17 (range 7–98, mean 23) days, which is seven days later than the median age at presentation. Patients presenting with sepsis and meningitis were diagnosed at a younger median age than children with osteomyelitis at 12, 18 and 22 days, respectively.
The main associations with infection of cephalhaematomas were instrumental delivery assistance in 44 % (n = 19) (forceps in 21 % (n = 9), vacuum-extraction in 21 % (n = 9) and both methods in one child) and sepsis in 42 % (n = 18). Further associated factors included the use of a scalp electrodes during delivery in 23 % (n = 10), skin abrasions in 21 % (n = 9) and prolonged rupture of membranes for more than 18 h in 7 % (n = 3) of infants. Maternal sepsis was not reported in any of the reviewed cases. Maternal administration of antibiotics prior or during delivery was not specified in the reviewed cases.
Used imaging technics and results of the infants with infected cephalhaemtomas
Used imaging technic
Number of patients (% of patients with the same imaging technic)
Normal apart from haematoma
Lytic bone changes
Normal apart from haematoma
Magnet resonance imaging
Sinus venous thrombosis
Normal apart from haematoma
Pathogens isolated from infected cephalhaematomas
Escherichia coli (E. coli)
Bacillus proteus (B. proteus)
Gardnerella vaginalis (G. vaginalis)
Escherichia hermanii (E. hermanii)
Streptococcus pneumoniae (S. pneumoniae)
Staphylococcus epidermidis (S. epidermidis)
Gram negative rods
≥ 2 species
Staphylococcus aureus, Streptococcus agalactiae and
Escherichia coli and anaerobic streptococci
Number of patients (% of patients with the same condition)
E. coli and Streptococci
≥ 2 species
Gram negative rods
Gram negative rods
Gram negative rods
All children received antibiotic treatment. The median duration was 21 (range 5–67, mean 27, data available from n = 41) days. The choice of antibiotics and the duration of therapy were heterogeneous. All but one infant were initially treated with intravenous antibiotics. Eleven patients were switched to oral antibiotics after a median duration of 21 (range 4–46, mean 19) days.
Surgical management was most commonly aspiration followed by incision and drainage (42 %, n = 18) or incision and drainage only (30 %, n = 13). In two infants aspiration was the only surgical intervention. Scalp bone was partially removed in 12 % (n = 5) of infants. Two patients died before a surgical intervention was possible and one child healed without a surgical intervention.
The median duration of hospitalisation was 23 days (range 5–47, mean 38, data available from n = 38). Six children were hospitalised twice. Of the two children who died, one suffered from unmanageable sepsis and meningitis, while the other one was found death in his bed 13 days after being treated for E. coli meningitis. Post-mortem examination revealed a grossly infected cephalhaematoma with growth of E. coli from an aspirate.
An infected cephalhaematoma is a rare, but potentially life-threating condition. Half of the infants with infected cephalhaemtoma present with non-specific signs of sepsis, such as fever, reduced feeding or lethargy and the other half because of changes of the haematoma, most frequently secondary enlargement or erythema of the overlying skin. Sepsis, instrumental assistance during delivery, the use of scalp electrodes and skin abrasions are the most important associated risk factors. Plain radiographs, computed tomography or magnetic resonance imaging have limited power to determine if a cephalhaematoma is infected, but can help in identifying associated osteomyelitis. Inflammatory markers in blood are often elevated, but this does not necessary mean that there is an infection. In two infants an infection of a cephalhaemtoma was suspected because of raised inflammatory markers, but no organisms were isolated from the haematomas or various other body fluids [2, 38]. At our clinic, we also looked after an infant who presented with a cephalhaemtoma and remarkably elevated inflammatory markers. The infant healed without any antibiotics or other interventions. Therefore, we suggest that elevated inflammatory markers can be part of the reabsorption process of haematomas and do not necessarily indicate that there is an infection, which can cause further difficulties in diagnosis.
Although, aspiration is contraindicated as a treatment option in cephalhaematomas, because of the potential risk of inoculating microbes, a percutaneous tap is necessary for the diagnosis of an infection.
Overall, E. coli is by far the most frequent pathogen responsible for infecting cephalhaematomas. Given that the identified associated risk factors for infection of cephalhaematomas are skin abrasions, instrumental assistance and the use of scalp electrodes during delivery, it is not surprising that entry for organisms acquired from the birth canal is facilitated. However, E. coli is more frequently isolated in non-traumatic cases than it is in patients with skin lesions. A further interesting finding is that even though skin abrasions are a risk factor for infection, no case of infection with Staphylococcus aureus as causative organism was reported.
Apart from primary invasion of pathogens, secondary infection associated with sepsis or meningitis is a further pathogenetic mechanism. Here, the spectrum of microbes is expected to be the same than in neonates with sepsis and/or meningitis without cephalhaematomas. However, studies including similar case numbers of neonates with sepsis or meningitis with comparable demographic and clinical characteristics (community-acquired late onset sepsis in term babies from developed countries before the implementation of intrapartum antibiotic prophylaxis) identified much lower numbers of Gram negative rods and E. coli as causative pathogens . The proportion of E. coli in isolated late-onset meningitis is also much lower (32 %) than in infants with infected cephalhaematomas and meningitis (82 %) . A further interesting finding is the rarity of Group B streptococci (GBS) as causative organisms in infected cephalhaematomas. Since the peripartal antibiotic prophylaxis for GBS does not influence the incidence of late-onset sepsis and most children with infected cephalhaematomas present at an age of 3 weeks or more, one would expect higher rates of GBS.
When an infant with a cephalhaematoma shows a decline in general well-being, fever or local signs of inflammation, infection of the haematoma should be suspected. Parents need to be informed about the potential risk of infection in cephalhaematomas when leaving the birth clinic.
Antibiotic treatment should cover the typical causative organism of neonatal sepsis/meningitis, particularly E. coli. Surgical intervention might be necessary.
PZ was supported by grants from the Prof. Max Cloëtta Foundation, the Gottfried and Julia Bangerter-Rhyner Foundation and the Fondazione Ettore e Valeria Rossi during the time when she wrote this manuscript.
Availability of data and materials
All data supporting the presented case report is contained within the manuscript.
PZ and AD provided clinical care for the patient. PZ drafted the initial manuscript, and approved the final manuscript as submitted. AD critically reviewed and revised the manuscript, and approved the final manuscript as submitted.
The authors declare that they have no competing interests.
Consent for publication
Written informed consent for publication of this case report and any accompanying images was obtained from the caregiver of the patient. Approval of an ethics committee was not required for this study.
Ethics approval and consent to participate
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None relevant to this manuscript.
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