A newborn with grouped facial skin lesions and subsequent seizures
© Döring et al.; licensee BioMed Central Ltd. 2014
Received: 12 February 2014
Accepted: 19 May 2014
Published: 22 May 2014
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© Döring et al.; licensee BioMed Central Ltd. 2014
Received: 12 February 2014
Accepted: 19 May 2014
Published: 22 May 2014
Congenital grouped skin lesions are alarming signs of a variety of threatening diagnoses of quite different origin. The present case report shows an impressive clinical pattern of a neonate and illustrates the difficulty in differential diagnosis of mixed connective tissue disease and neonatal lupus erythematosus in newborns. This reported case is to our knowledge the first description of an unrecognized mixed connective tissue disease in the mother with an unusual clinical manifestation in the newborn, comprising skin lesions, neurological damage and non-typical antibody constellation.
We report on a Caucasian female neonate from a perinatally asymptomatic mother, who presented with grouped facial pustular-like skin lesions, followed by focal clonic seizures caused by multiple ischemic brain lesions. Herpes simplex virus infection was excluded and both the mother and her infant had the antibody pattern of systemic lupus erythematosus and neonatal lupus erythematosus, respectively. However, clinical signs in the mother showed overlapping features of mixed connective tissue disease.
This case report emphasizes congenital Lupus erythematosus and mixed connective tissue disease as important differential diagnoses of grouped skin lesions in addition to Herpes simplex virus-infection. The coexistence of different criteria for mixed connective tissue disease makes it difficult to allocate precisely maternal and congenital infantile disease.
Congenital grouped skin lesions are alarming signs of a variety of threatening diagnoses of quite different origin . The present case report shows the surprising resolution of an impressive clinical pattern of a neonate and his prenatally asymptomatic mother. Infectious diseases and typical neonatal patterns as well as auto-immunological entities have to be considered; especially in the latter, diagnosis may be difficult due to overlapping definitions.
No evidence of sinus venous thrombosis was found. Thrombocytopenia (minimal 91000/μl) was present, and coagulation blood test showed evidence of an increased fibrinolysis and normal plasmatic inhibitors of coagulation, normal antithrombin III (56%) and protein S (58%) but low protein C (22%). Therapy with low molecular weight heparin was started. Echocardiogram revealed no structural abnormalities, and an inconspicuous electrocardiogram with a normal PQ interval and QRS complex was analyzed. Central and peripheral bleeding spots were found in the ocular fundus, most likely caused by trauma during birth. Renal function test, albumin, transaminases, bilirubin and calcium were normal. A smear of the grouped pustular lesions in the face showed no infection with staphylococcus. But a biopsy of the affected skin showed evidence of cytoid bodies compatible with an interface dermatitis. Serological studies of the infant detected maternal HSV and varicella zoster virus (VZV) specific IgG antibodies, IgM and a HSV-PCR of a swab of a skin lesion were negative. However, antinuclear antibodies (ANA), anti-U1-snRNP antibodies and anti-Sm antibodies were present, while antiphospholipid, anti-Scl 70, SSA/Ro, SSB/La, anti-Tm, anti-Jo-1 and anti-ds DNA antibodies could not be detected. Test results of the asymptomatic mother revealed the same autoantibody pattern.
Four weeks postpartum, the mother developed bilateral erythema on the face and both forearms, muscle weakness of both arms, a Raynaud’s phenomenon, arthralgia in hands and swollen fingers. She was subsequently diagnosed with mixed connective tissue disease (MCTD), since she exhibited three typical clinical symptoms (swollen fingers, muscle weakness, Raynaud’s phenomenon), and one of the possible antibody constellations (ANA, anti-U1-snRNP and anti-Sm antibodies), both characteristic signs and symptoms of the disease [2, 3]. There had been no occurrence of symptoms of rheumatic diseases in the infant’s siblings, a seventeen years old sister and a seven years old brother. Further questioning of the mother revealed that about six weeks after the second delivery, transient arthralgia occurred, which responded to oral steroids. No diagnosis was made at that time.
The newborn infant was discharged on his 16th postnatal day, the lesions were healing (in parts showing scars as residual lesions), and until reassessment at the age of 10 weeks with phenobarbital and low molecular weight heparin as medical therapy displayed no symptoms; he was consequently carefully weaned off medication. A transcranial duplex ultrasound after 4 weeks of birth showed a normal cerebral artery blood flow in all areas of the brain. A follow-up MRI of the brain (Figure 2D-F) at the age of 32 months showed postischemic defects with involvement of the gyrus supramarginalis and the peripheral visual cortex. The rest of the brain showed age-appropriate myelinization and no further over lesions. At the age of 6 years there were no signs of cerebral palsy, seizures or amblyopia but language development was delayed and complicated by a speech disorder. Other cognitive development as tested by the Snijders-Oomen non-verbal intelligence test was in the lower norm and a somatic retardation with dystrophy and microcephaly was diagnosed.
In summary, we describe a newborn infant who had cutaneous manifestations and the antibody pattern of neonatal lupus erythematosus (NLE), complicated by neurological symptoms.
Differential diagnosis of immune mediated disorders presenting with neurological symptoms and skin lesions
Clinical characteristics in newborn patients with skin and neurological lesions
Neonatal Herpes Simplex Virus 1 (HSV1)
seizures, tremors, lethargy
HSV1-IgM antibodies positive
Congenital Varicella Syndrome (VZV)
skin rashes, papules, vesiculopustular lesions, crusts
VZV-IgM antibodies positive
Herpes Zoster (HZ)
skin rash, vesicles, crusts, limited to a dermatome
VZV-IgM antibodies positive
Neonatal Lupus Erythematosus (NLE)
malar rash or butterfly rash, scaly patches, skin and mucosa lesion like ulcers
ANA, anti- Sm antibodies, SSA/Ro and SSB/La antibodies, anti-U1-RNP antibodies
Mixed Connective Tissue Disease (MCTD)
rash, scaly patches, overlapping symptoms of SLE, PSS, PM and RA
ANAs, anti-U1-RNP antibodies, (anti-Sm antibodies)
Undifferentiated Connective Tissue Disease (UCTD)
malar rash, oral ulcers purpura, urticaria
ANA, anti-Ro/SSA, anti-Sm-, anti-ds DNA-, anti RNP-, anti-Ku antibodies, rheumatoid factor
Antiphospholipid Syndrome (APS)
seizures, strokes, abnormal movements
antiphospholipid antibodies, β2- glycoprotein- 1 antibodies, anticardiolipin antibodies
Incontinentia Pigmenti (IP)
blistering, a wart-like rash, hyper/hypopigmentation
cerebral atrophy, seizures, slow motor development, muscle weakness
NEMO IKBKG gene (chromosomal locus Xq28), females skewed X-Chromosome inactivation
Erythema Multiforme (EM)
pink-red blotches, target lesions
seizures (caused by HSV)
viral, bacterial or fungal infection
Neonatal Acne (NA)
comedones, papules, pustules
Langerhans Cell Histiocytosis (LCH)
scaly erythematosus lesions, red papules, eruptions on the scalp
Impetigo Contagiosa (IC)
honey yellow crusts, plaques or bullae
Staphylococcus aureus, beta-hemolysing Streptococcus, group A
Based on the initial clinical presentation, the first differential diagnosis focused first on neonatal HSV infection and, less probable, congenital VZV infection. Thus, aciclovir therapy (3x20 mg/kg/d) was started immediately. Seizures just six hours after birth further supported this hypothesis. HSV infection in neonates is rather uncommon and might be difficult to diagnose . Vesicular eruptions and seizures can occur at any time from soon after birth up to beyond the neonatal period . Congenital infection is usually identified within the first 48 hours following birth, characterized by skin vesicles or scarring, eye lesions, neurologic symptoms, and later growth retardation and psychomotor developmental retardation . Therefore, therapy in the present case had to be continued until acute HSV and VZV infection had been excluded [7, 8] by serologic and PCR investigations. At his point, the less-common NLE, MCTD, erythema multiforme (EM), antiphospholipid syndrome (APS) and incontinentia pigmenti (IP) were considered. In general, vesiculopustular eruptions in neonates are common in bacterial infections like staphylococcal infections, congenital lues or listeriosis, fungal infections (candidiasis) or parasitic disorders (scabies) . Transient pustular melanosis is characterized by eosinophilic staining. EM is a short-lasting skin condition that occurs as a reaction to a viral infection (especially HSV) or medication. In the present case, these diagnoses could be excluded clinically, due to the normal microbial flora of skin, and by a negative C-reactive protein, which is highly sensitive to bacterial infection . The analyzed skin biopsy made EM and IP unlikely [10–12]. In contrast to these more common causes, immune-mediated disorders manifesting with neurological symptoms (such as seizures) in newborns are extremely rare [13, 14]. Several cases of NLE-associated seizures are reported [15–20]. NLE is an acquired autoimmune disease caused by maternal antibodies to SSA /Ro and SSB/La, ANAs, anti-ds DNA or anti-Sm antibodies and in rare cases anti-RNP antibodies . Maternal anti-Ro/SSA and anti-La/SSB antibodies are known to be associated with NLE including fetal cardiac conduction block . All infants who were affected with NLE and tested positive only for anti-U1-snRNP antibodies were male, only developed cutaneous lesions and were not commonly associated with congenital heart block [13, 23]. In about 99% of SLE-patients, antinuclear antibodies were detected [24, 25]. In most cases, the presence of anti-Sm antibodies occurs after the clinical manifestation of SLE therefore they serve as a diagnostic criterion for SLE, while a high anti-U1-snRNP antibody titer is associated with a more active illness. Nevertheless, mild progressive forms often occur without nephritis . Ultrasound scans showed normal structure and perfusion of both kidneys in the present case.
The cause of the multiple ischemic brain areas in the distribution of the middle and posterior cerebral artery on the left side remains unclear. The homeostasis system of neonates is characterized by decreased concentration of protein S, protein C and antithrombin, elevated levels of factor VIII and von Willebrand factor, and less active fibrinolysis, which results in a prothrombotic state. Neonatal thrombosis is a multifactorial event including several inherited and acquired risk factors such as hereditary deficiencies of the naturally occurring coagulation inhibitors, maternal preeclampsia, traumatic delivery, infection, dehydration, hyperviscosity, complex heart disease and catheter placement in the newborn [26, 27]. The activation of protein C plays a central role in the prophylaxis of micro-thrombi. Activated protein C is able to form complexes with its cofactor protein S which may then inactivate the coagulation factors Va and VIIIa . The importance of the function of protein C is shown by the life threatening thrombotic complications in newborn infants. In the process, there are two different forms of protein C deficiencies: type I is accompanied by reduced synthesis of protein C thus reduced plasma levels, while type II is characterized by reduced protein C activity but normal plasma level. Newborns born with a proven homozygous type I deficiency experience severe thrombosis and purpura fulminans shortly after birth. The prevalence of heterozygous protein C-deficiency (activity 30-65%) ranges from 1:200 to 1:500 [29–31]. In the present case, the female infant had a mild deficiency of protein C (22%) [32, 33]. Ultimately, a combination of an autoimmune phenomenon and a heterozygous protein C deficiency likely leads to the unusual neurologic manifestations in our patient.
The clinical presentation of the patient’s mother four weeks postpartum was typical for MCTD but her antibody constellation was typical for SLE . MCTD was originally described by Sharp et al. in 1972 and is classically considered as an overlap syndrome presenting with features of SLE, progressive systemic sclerosis, polymyositis, and rheumatoid arthritis. Anti-U1-RNP antibodies are detectable in the blood of all MCTD patients, typically showing high titres of ANAs but without additional antibodies like DNA antibodies of SLE and the Scl-70 antibodies typical for scleroderma [3, 35]. Giving a precise definition of MCTD is difficult since there are four different sets of criteria which are generally used in international publications: the Sharp criteria, the Alarcon-Segovia criteria, the Kasukawa criteria, and the Kahn criteria . The basis of all these sets of criteria is the presence of anti-U1-RNP autoantibodies. Comparing the four sets of classification criteria, Amigues et al. concluded that the criteria with the best performance are those proposed by Alarcon-Segovia . These criteria are widely used and do not consider the positivity to Sm antigen as an exclusion criterion like the Sharp criteria do [3, 37]. They include five clinical symptoms (swollen hands, synovitis, biologically proven myositis, Raynaud’s phenomenon, and acrosclerosis with or without proximal systemic sclerosis) in addition to anti-RNP positivity. At least three out of five clinical symptoms and the presence of anti-RNP antibodies are necessary for diagnosis of MCTD [2, 35]. This allows the diagnosis of MCTD in the mother of the patient.
In conclusion, the diagnosis in the present case was difficult not only due to the exceedingly rare presentation of such diseases in the neonatal period but also because the mother’s autoimmune disease had not been diagnosed at the time of delivery. This reported case is to our knowledge the first description of an unrecognized MCTD in the mother with an unusual clinical manifestation in the newborn, comprising skin lesions, neurological damage and non-typical antibody constellation. It illustrates the diagnostic difficulties in a symptomatic child born to an asymptomatic mother, and underlines that the neonatal manifestations of an autoimmune disease may differ dramatically from those observable in the mother.
Written informed consent was obtained from the patient’s parents for publication of this Case Report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal. The present case report was performed in accordance with the institutional ethics regulations.
Herpes simplex virus
Mixed connective tissue disease
Neonatal lupus erythematosus
Systemic lupus erythematosus
Varicella zoster virus.
We acknowledge support by Open Access Publishing Fund of Tuebingen University.
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