Journal of Clinical & Medical Case Reports
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Figure 2: An axial T2 magnetic resonance image with fat saturation demonstrates multiple hyperintense lesions with near total hepatic parenchymal replacement.
Case Report
Liver failure Due to Diffuse Neonatal Hemangiomatosis
Cura-Esquivel I*, Montes-Tapia F, Rodriguez-Tamez A, Sanchez-Cortes G and González JE
- Department of Pediatrics, Autonomous University of Nuevo Leon, Mexico
*Address for Correspondence: Cura-Esquivel I, Department of Pediatrics, Autonomous University of Nuevo Leon, Hospital Universitario, Av. Madero y Gonzalitos s/n, Monterrey, NuevoLeón, CP64360, México, Tel: +52 818 3485 421; E-mail: idalia.curaesq@uanl.edu.mx (or) idaliaaracely2008@hotmail.com
Citation: Cura-Esquivel I, Montes-Tapia F, Rodriguez-Tamez A, Sanchez-Cortes G, González JE. Liver failure Due to Diffuse Neonatal Hemangiomatosis. J Clin Med Case Reports. 2019;6(1): 3.
Copyright © 2019 Cura-Esquivel I, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Journal of Clinical & Medical Case Reports | ISSN: 2332-4120 | Volume: 6, Issue: 1
Submission: 26 October, 2018 | Accepted: 28 January, 2019 | Published: 31 January, 2019
Abstract
The term Diffuse Neonatal Hemangiomatosis (DNH) has been used to describe multifocal vascular lesions affecting the skin and organs with the liver being the organ most frequently involved. Although spontaneous regression is the rule, complications such as a high cardiac output caused by portovenous or arteriovenous shunts can occur. Liver lesions can be potentially lethal due to severe complications such as fulminant hepatic failure. Mortality varies between 60-80% in the first months of life without treatment. Propranolol has been reported as an effective and well-tolerated treatment for cutaneous hemangiomas and more recently in hepatic hemangiomas.
We report the case of an infant with a diffuse neonatal hemangiomatosis with hepatic hemangioma, which caused liver failure and successfully responded to treatment with propranolol.
Keywords
Hemangioma; Diffuse hemangiomatosis; Liver failure; Neonatal; Propranolol
Introduction
Congenital vascular lesions are relatively common disorders that have multiple forms of presentation, some with a tendency to resolve spontaneously and others associated with hemangiomatous lesions of internal organs. Depending on their location they can cause heart failure, anemia, hepatic failure, ocular and brain disorders, and even death [1].
Hemangiomas are benign vascular tumors composed of proliferating endothelium. They typically occur during the first two months of life in 90% of cases. Benign neonatal hemangiomatosis (BNH) is diagnosed when five or more skin lesions are present. When vascular lesions affect the skin and viscera the disease is known as Diffuse Neonatal Hemangiomatosis (DNH), which is a serious systemic disorder that is present in 1 to 2.6% of infants born at term. Many publications emphasize the severity of DNH, citing a mortality of 60-80% [2].
Lister first described DNH in 1938 [3], and in 2008 Leauté reported regression of hemangiomas in children treated with propranolol [4]. Since then, several series have confirmed the benefit of propranolol in the involution of infantile cutaneous hemangiomas and for the treatment of isolated hemangiomas in other locations [5,6].
Case Report
The patient is a 45-day-old male infant with respiratory distress, tachypnea, intercostal retractions and nasal flaring. In the last 24 hrs, he refused to eat. On physical examination, he had a heart rate of 160 beats/minute and an oxygen saturation of 89%. Multiple papulelike purple lesions compatible with hemangiomas were noted. These were 1-3 mm in diameter and located on his thorax, abdomen and extremities, in addition to a 1 mm lesion on his scalp. His skin also presented generalized jaundice. In the chest, a holosystolic grade III/VI murmur was heard. The abdomen was found distended with hepatomegaly 4 cm below the right costal border at the midclavicular line and with grade II splenomegaly.
Initial laboratory tests revealed hemoglobin of 10.9 g/L, a hematocrit of 30.9%, leukocytes 9,260/mm3 and platelets 243,000/ mm3. Liver function tests showed total bilirubin 10.9 mg/dL, direct bilirubin 1.9 mg/dL, indirect bilirubin 9 mg/dL, albumin 3 g/dL, AST 160 U/L, ALT 178 U/L, LDH 585 U/L, alkaline phosphatase 246 U/L, J Clin Med Case Reports 6(1): 3 (2019) Page - 02 ISSN: 2332-4120 gamma-glutamyl transpeptidase 178 U/ml, creatinine 0.4 mg/dL, ammonium 80 mg/dL, and clotting times TP 15.8 sec, TTP 43.4 sec and INR 1.3. A thyroid profile was normal. The chest x-ray showed cardiomegaly with a cardiothoracic index of 0.58 and increased pulmonary vasculature. An echocardiogram showed a high cardiac output with heart failure, elevated pulmonary artery pressure and a patent ductus arteriosus. Abdominal ultrasound showed moderate hepatomegaly (7.5 cm) with a heterogeneous echotexture and countless hypoechoic lesions involving the entire liver parenchyma. A contrasted magnetic resonance image of the abdomen demonstrated an enlarged liver. The main hepatic artery, hepatic veins and inferior vena cava were dilated. Multiple hypointense focal lesions on T1 and hyperintense on T2, 10-30 mm in diameter with very little liver parenchymal between them were seen. MRI findings were consistent with diffuse hepatic hemangioma (Figure 1 and 2). Extension studies of the brain and lung showed no lesions.
Figure 1: MRI delineates multiple discrete homogeneous lesions, 10-30 mm in diameter with very little liver parenchymal between them.Treatment for heart failure with digoxin and furosemide was started. Also, prednisolone 2 mg/kg/day and propranolol at an initial dose of 1 mg/kg/day and gradually increased to a dose of 3 mg/kg/day were administered for DNH. The patient remained hospitalized in the Pediatric Intensive Care Unit for 3 weeks. His cardiovascular status stabilized after 14 days of treatment. Liver function also gradually normalized. At 3 weeks of treatment jaundice had disappeared and liver function tests were normal (Albumin 3.9 mg/dL, TP 12.2 sec and TTP 18 sec). Treatment with prednisolone was stopped after four weeks and propranolol was continued for 10 months. At 12 months of age, the skin lesions had disappeared. A follow-up ultrasound showed normal liver size with a reduction of hypoechoic lesions (less than 2 mm). At 24 months of follow-up the patient had no evidence of heart failure and normal liver function. The liver hemangiomas were almost imperceptible on abdomen ultrasound and MRI (Figure 3).
Figure 3: Ultrasound scans images twenty-four months later: grayscale injury happens now unnoticed.Discussion
Hemangiomas are the most common benign tumors in childhood. They were initially considered neoplastic lesions that originated in the vascular endothelium; they are now known to be benign endothelial cell neoplasm’s characterized by rapid growth followed by involution in the early years of life.
Infantile Hepatic Hemangiomas (IHH), in particular of the diffuse subtype, can be associated, in severe cases, with hepatic and cardiac insufficiency. The early recognition of this entity is essential to start treatment and reduce the risk of long-term sequela and even death.
In 1970 Holden and Alexander suggested diagnosing DNH based on 3 criteria that included 1) presentation during the neonatal period 2) no evidence of malignancy, and 3) involvement of various organs or systems [7]. In DNH, skin hemangiomas are located almost anywhere in the body including the mucosa, and their size varies from a few millimeters to 5 cm. Visceral hemangiomas can compromise various internal organs, such as the liver, heart, lung, gastrointestinal tract, retina, spleen, pancreas, bladder, kidney, bladder, meninges, choroid, etc. [8].
The signs of systemic compromise may be subtle, and include failure to thrive (secondary to underlying thyroid or cardiac dysfunction) and feeding difficulties. The presence of hepatomegaly on clinical examination should expedite radiological investigation.
Liver hemangiomas, especially those that are multiple and large, are associated with high mortality. One complication is high-output congestive heart failure (51%) because these lesions simulate the hemodynamic alterations of a left-right shunt.
The clinical presentation can vary and include liver dysfunction [9,10], hyperammonemia, hepatosplenomegaly (5.3%), renal failure (10.6%) and hypothyroidism (5.3%). Although the spontaneous regression is the rule with the liver hemangiomas, complications such as a high cardiac output caused by portovenous or arteriovenous shunts can occu like in our patient.
Liver failure is a rare complication with high mortality and is suspected with elevated transaminases, coagulopathy and encephalopathy. A mortality rate of 60-80% without treatment has been reported [4,5,11,12].
However, with proper treatment mortality is reduced to 27%.
Treatment is aimed at preventing complications. Several therapeutic options have been described including observation, use of interferon alfa-2b, vincristine, vinblastine, cyclophosphamide, steroids, propranolol or non-pharmacological treatments, such as radiation therapy, embolization or surgery [13].
Corticosteroids limit proliferation of blood vessels and induce early regression. They are first-line treatment for severe and complicated infantile hemangiomas. The response rate varies from 30-50% [14,15].
The efficacy of propranolol in the treatment of hemangiomas has been described since 2008. Its mechanism of action remains unclear; however, some suggested mechanisms are a cytotoxic effect on endothelial cells, inhibition of matrix metalloproteinase, and modulation of stem cell differentiation [16,17].
We report the case of an infant with DNH with liver failure secondary to liver hemangiomas. Based on reports that propranolol has been effective in the treatment of hemangiomas in children, we offered this therapy to our patient who showed dramatic improvement of liver failure, demonstrated by the recovery of liver metabolism and synthesis.
Conclusion
Diffuse neonatal hemangiomatosis is a rare and potentially fatal disease. Due to its rapid development, early intervention is necessary to prevent progression or produce regression.
In this case, liver failure secondary to DNH occurred, which resolved effectively with steroids and propranolol. The primary cause of liver failure was the hepatic hemangiomas. The administration of propranolol had a fast and consistent therapeutic effect allowing control of the complications caused by hemangiomas. It also shortened the natural history of the disease (proliferation phase) and contributed to its resolution with good tolerance.
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