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Revista mexicana de oftalmología

On-line version ISSN 2604-1227Print version ISSN 0187-4519

Rev. mex. oftalmol vol.93 n.3 Ciudad de México May./Jun. 2019  Epub July 06, 2021

https://doi.org/10.24875/rmoe.m19000065 

Artículo de historia

Periocular capillary hemangioma in 2018: natural course, indications for treatment and therapeutic options

Hemangioma capilar periocular en 2018: curso natural, indicaciones para el tratamiento y opciones terapéuticas

Carlos Fleitman-Broder1 

1Centro Médico ABC, Mexico City, México


Abstract

Capillary hemangiomas are one of the most common benign orbital and eyelid childhood tumors. Many of these tumors do not require treatment because they regress spontaneously without leaving sequelae; however, treatment is necessary in many cases, such as amblyogenic or eye-threatening lesions. Treatment of this kind of lesions has evolved from surgical excision to laser and steroids, all of them successful in different ways and with a range of side effects. In the last few years treatment has been revolutionized due to a casual finding made by Leaute-Labreze et al. Nowadays we use beta-blockers that have proved to be highly effective and with a much safer profile than previously used drugs. Several case reports have shown success by treating these lesions with topical beta-blockers. With this safer and more effective treatment, we can currently treat this lesions that in the past were just kept under observation, diminishing the cosmetic sequelae and the social stigma of patients having such lesions in their facial area.

Key words Eyelid neoplasms (therapy); Hemangioma capillary (therapy); Orbital neoplasms (therapy); Propranolol (therapeutic use); Facial neoplasms (therapy)

Resumen

Los hemangiomas capilares son el tumor de párpado y órbita más común en la infancia. La mayoría de estos tumores no requieren tratamiento, gracias a que involucionan espontáneamente sin dejar secuelas permanentes; sin embargo, en muchos casos, el tratamiento es necesario, por ejemplo, en el caso de lesiones ambliogénicas o que pongan en riesgo la salud ocular. El tratamiento de este tipo de lesiones ha evolucionado a lo largo de los años, desde la escisión quirúrgica, pasando por el láser y los tratamientos con esteroides, todos ellos con diferentes grados de éxito y efectos secundarios. En los últimos años, gracias a un hallazgo casual de Leaute-Labreze, et al., el tratamiento de estas lesiones ha sufrido una revolución. Ahora, en el arsenal terapéutico para este tipo de lesiones contamos con fármacos betabloqueadores, que han demostrado ser altamente efectivos y con un rango de seguridad mucho mayor que los tratamientos previamente utilizados. Hoy en día existen también reportes de casos que demuestran éxito en el tratamiento de estas lesiones con aplicación tópica de esta familia de medicamentos, lo que disminuye los efectos secundarios. Al contar con modalidades terapéuticas más seguras y eficaces, es posible tratar hemangiomas que en el pasado solamente se hubieran observado, así, se disminuyen las secuelas cosméticas y el estigma social que estos niños viven al tener una lesión de esta naturaleza en el área facial.

Palabras clave (Tratamiento de) Neoplasias palpebrales; (Tratamiento de) Hemangioma capilar; (Tratamiento de) Neoplasias orbitales; (Uso terapéutico) Propanolol; (Tratamiento de) Neoplasias faciales

Introduction

Capillary hemangiomas are one of the most common benign orbital and eyelid childhood tumors. They are composed of abnormal capillaries with proliferation of endothelial cells1-4.

The most common presentation of the hemangioma is that of a red colored tumor with a multi-lobed appearance (Fig. 1). If it is superficial or bluish (Fig. 2), if it is subdermal, or if it is a mass in the anterior part of the orbit, it usually increases in size during the first years of life, and then involutes spontaneously. Most hemangiomas pose no threat to visual development, but if they are large lesions, they can cause amblyopia due to mechanical ptosis, astigmatism, severe proptosis with exposure keratopathy and/or optic nerve damage, depending on the location of the tumor. Visual development begins very early in childhood, and deprivation of visual stimulation during the first year of life has been shown to be detrimental to visual development. Studies have shown that total obstruction of the visual axis for a period of 1 week between birth and 1-year of age, can lead to amblyopia; therefore, the identification and appropriate and timely treatment of this type of tumors is of utmost importance1-3,5,6.

Figure 1 Superficial capillary hemangioma, lower left eyelid. 

Figure 2 Deep capillary hemangioma of the left eyebrow. 

The histopathological characteristics of this vascular hamartoma varies depending on the clinical phase. In the early proliferative phase, the tumor consists mostly of endothelial cells, and vascular spaces are rare, likewise, it contains numerous mast cells. In more mature tumors, larger vascular spaces are observed, with a lower number of endothelial cells (Fig. 3). The tumor does not encapsulate and, generally, does not tend to infiltrate the surrounding structures. In the involutional phase there is often deposition of fibrous and adipose tissue around and inside the lesion3.

Figure 3 Histopathological section of a capillary hemangioma with endothelial proliferation and multiple vascular spaces (HE, 40x). 

Pathogenesis

Hemangiomas are the most common childhood tumors, with a prevalence among infants of 5 to 12% and a female/male ratio of 3:1. The prevalence of periorbital and eyelid hemangiomas is from 1 to 3%. No inheritance pattern has been found1-3.

There is no classification for hemangiomas; however, many authors classify them based on the depth. Superficial or capillary hemangiomas, historically designated as “strawberry hemangiomas”, develop from the papillary dermis, not as deep or cavernous hemangiomas that are located within the reticular dermis and subcutaneous tissue5.

Systemic complications associated with capillary hemangiomas include PHACE syndrome ((P)osterior fossa and other structural brain malformations; (H)emangiomas; (A)rteries anomalies; (C)ardiac anomalies/(C)oarctation of the aorta; and (E)ye abnormalities), as well as visceral involvement of this tumors1-3,5.

The exact pathogenesis of hemangiomas is not clear, but studies suggest that angiogenesis and vasculogenesis play an important role. It is speculated that there is a developmental defect during weeks 8 to 10 of gestational age that causes the formation of abnormal vessels by an endothelial precursor, which contributes to the process of pathological angiogenesis3.

During the postnatal proliferative phase, this tumor expresses numerous cellular markers of angiogenesis (vascular endothelial growth factor [VEGF], basic fibroblast growth factor [BFGF], type IV collagenase). Likewise, a lack of expression of substances that inhibit angiogenesis has been found. The incomplete vascular maturation observed in premature infants has also been associated with a higher incidence of capillary hemangiomas5.

One of the most accepted theories about the origin of capillary hemangiomas speculates that these originate from angioblastic tissue of the placenta, since they share some microvascular characteristics with placental tissue. North, et al. identified immunohistochemical markers common to placental tissue and histopathological samples of capillary hemangiomas, including glucose transporter-1 (GLUT1), immunoglobulin Fc receptor type II (FcgRII), merosin and Lewis-Y antigen5,7. Barnes, et al. demonstrated a similarity in the transcriptomes of hemangiomas and placental tissue. This reinforced, from a genetic point of view, the placental origin theory of the capillary hemangioma5,8.

One of the risk factors for developing capillary hemangiomas is chorionic villus sampling that could potentially seed metastatic placental tissue in remote areas, inducing the formation of this type of tumors5.

Clinical characteristics and diagnosis

Approximately one third of capillary hemangiomas are present at birth, and the rest will have appeared at the age of 6 months. The appearance of the tumor is usually preceded by a mild cutaneous erythema3.

The rapid growth lasts approximately 3 to 6 months, followed by a period of stabilization and then, usually, regression. At 7 to 9 years of age, 76 to 90% of hemangiomas will have involuted without any treatment. However, in 40 to 50% of cases, sequelae of the tumor persist, such as telangiectasia, fibrous and residual adipose tissue and/or abnormal scarring1-3.

Capillary hemangiomas are most commonly located in the upper eyelid or in the upper aspect of the orbit. Its appearance varies according to the depth; superficial skin lesions have a red lobed appearance, have been commonly described as “strawberry hemangiomas”, and can increase in size and take a bluish color during weeping. Subcutaneous hemangiomas appear as a soft bluish mass, with signs and symptoms corresponding to an orbital mass (proptosis, compressive optic neuropathy, etc.)1-3,5.

The development of amblyopia secondary to occlusion of the visual axis, astigmatism, anisometropia, strabismus due to compression of the eyeball or extension of the tumor to the retrobulbar space, is the most common complication, with an incidence ranging from 43% to 60%.

The diagnosis can be clinically established in most cases; however, in some cases imaging studies may be necessary to rule out visceral involvement or aggressive neoplasms.

The differential diagnosis includes angioblastoma, neuroblastoma, rhabdomyosarcoma, fibrosarcoma, hemangiopericytoma and childhood myofibrosis5.

Doppler ultrasound can be useful in cases difficult to diagnose, demonstrating a pattern of high flow, asymmetry and acoustic irregularity, unlike solid tumors and vascular malformations that exhibit a low-flow pattern.

In computerized axial tomography, capillary hemangiomas show a homogenous mass enhanced by contrast medium. Sometimes it is possible to demonstrate the presence of blood vessels that nourish the tumor. Magnetic resonance imaging shows a lobulated lesion with an intermediate signal intensity, which is isointense with the extraocular muscles on T1 and hyperintense on T23,5.

Rarely, it is necessary to perform a biopsy to obtain histopathological confirmation of the tumor.

Treatment, when and how to treat?

Periorbital and eyelid hemangiomas are associated with complications that can have a great effect on visual quality if they are not treated in a timely manner. In many cases, observation and expectant management are sufficient, since these lesions involute spontaneously.

The presence of an amblyogenic lesion is the most common indication for treatment. Other less common indications are rapid tumor growth, compressive optic neuropathy, and proptosis with exposure keratopathy1-6,9.

The anxiety of the parents due to the cosmetic defect that these injuries cause, can pose an important therapeutic challenge that should not be ignored. Other relative indications for treatment are ulceration, bleeding and infection.

There are many different strategies for the treatment of capillary hemangiomas. However, because these lesions undergo spontaneous regression and existing treatments are not free of side effects, treatment is usually reserved for lesions with a potential for complications.

The most common treatments recently available include corticosteroids, laser and surgical resection. Some treatments, such as cryotherapy, radiation and electrolysis, are practically obsolete nowadays. The use of immunomodulators such as cyclophosphamide and interferon alfa is reserved only as a second-line treatment for life-threatening or vision-threatening injuries. Finally, in recent years, treatment with beta-blockers has been increasingly accepted with excellent results, after the incidental discovery of Leaute-Labreze, et al. of the regression of capillary hemangiomas in patients who received propranolol for a cardiovascular indication10.

Corticosteroid therapy

Corticosteroids have been used in the treatment of capillary hemangiomas for more than four decades. Its mechanism of action to achieve involution of the lesion is still not understood. The treatment can be administered orally, intralesionally and/or topically5,11.

Until recently, intralesional injection of corticosteroids was considered the first-line treatment for small, low-risk lesions. The treatment is based on applying intralesionally 1-2 mL of a mixture of triamcinolone (40 mg/mL) and betamethasone (6 mg/mL). A reduction in astigmatism of up to 1.4 D, or more, has been reported in 53.8 to 66% of patients; however, cutaneous side effects such as hypopigmentation and adipose tissue atrophy have been reported in up to 70% of patients, and isolated cases of palpebral necrosis, retinal central artery occlusion and ocular hypertension have also been reported5,11.

For large capillary hemangiomas, treatment with systemic corticosteroids can be considered. The regression of the lesion is observed in 2 weeks in 30% of the cases; however, in many cases it is necessary to prolong the treatment beyond 8 or 12 weeks. Boon et al. reported a series of 62 patients who received daily doses of less than 3 mg/kg/day for 1 month with progressive dose reduction over 2 to 3 months. Most of the side effects were temporary, while the patient was under treatment; one third of the patients suffered from stunting; however, 91% recovered within 2 years after steroid suspension. Personality changes were reported during treatment in 29% of the patients12.

The most important problem with corticosteroid treatment is poor response. The literature reports 11% to 30% of non-responders; also, some cases recur once treatment has been suspended5,6,11,13.

Laser treatment

Although Nd: YAG and CO2 lasers have been used as a treatment for capillary hemangioma with relatively acceptable results, nowadays pulsed laser is the laser of choice for this type of lesions1,2,3,5.

The ideal wavelength for the treatment of capillary hemangiomas is from 585 to 600 nanometers5.

Most experts recommend the use of laser only in early proliferation or late regression stages due to their low penetration. When the lesion is flat at its early stage, pulsed laser can be used at intervals of 4 to 6 weeks. Likewise, laser treatment can be used for residual telangiectasias secondary to an involutional hemangioma5.

Surgical treatment

Surgical treatment may be a good option in patients with a subcutaneous lesion with well-defined borders, or when other treatments have failed3,13.

The indications for surgical treatment are lack of response to medical treatment, rapid growth of the lesion and severe orbital and/or eyelid deformity. Many authors have reported good cosmetic and/or functional results with surgical treatment3,13.

The main adverse effects of surgical excision are scarring, hemorrhage and complications related to general anesthesia. There are isolated reports of lesions that required intraoperative blood transfusion13.

The main objective of early surgical excision is the prevention of amblyopia caused by astigmatism or visual deprivation. While late surgical treatment has a cosmetic goal.

Immunotherapy and chemotherapy

Immunomodulators are potent therapeutic agents with serious side effects; therefore, they are reserved for tumors that threaten the eye or life.

Cyclophosphamide with or without steroids has been used with good results4. Recent studies have also demonstrated the effectiveness of interferon alfa-2 (IFN-a2) for the treatment of capillary hemangioma3. Side effects of these medications include myelosuppression, hepatotoxicity and neurotoxicity. The long-term effects of IFN-a2 in the developing brain are unknown.

Beta-adrenergic antagonists

Leaute-Labreze, et al. noted that the administration of systemic propranolol in a child with hypertrophic cardiomyopathy caused the regression of a nasal capillary hemangioma. These same authors demonstrated a total of 11 cases of infantile hemangiomas successfully treated with 2 mg/kg/day of systemic propranolol for a period of up to 9 months10.

After this finding, a large number of published reports have shown important regressions of hemangiomas in different parts of the body4,9,14.

The mechanism of action of propranolol in the reduction of hemangiomas has not been elucidated, but possible explanations include vasoconstriction, which is immediately visible as a change in coloration and a softer texture. Other factors that have been proposed as a mechanism of action are the decrease in the expression of different angiogenic factors, such as VEGF and BFGF, as well as an increase in the apoptosis of capillary endothelial cells4,5,10. Propanolol has a well-established safety and side effect profile. There is a lot of experience of its use in pediatric patients with cardiovascular disease and arterial hypertension. Although serious side effects have been demonstrated in infants who were exposed to beta-blockers in utero, postnatal exposure appears to be safe and free from serious side effects.

Adverse side reactions to beta-blockers include bradycardia, hypotension, hypoglycemia, gastroesophageal reflux, fatigue and bronchospasm5,15.

A clinical history and physical examination focused on cardiovascular and respiratory diseases is necessary before treatment administration. The most widely used protocol for this treatment is16:

  • – Baseline echocardiography and a 48-hour hospitalization for pre-treatment vital signs monitoring.

  • – Administration of propranolol 0.16 mg/kg every 8 h as starting dose.

  • – Increase the dose to a maximum of 0.67 mg/kg every 8 hours (2 mg/kg/day) if vital signs and blood glucose allow it.

  • – The treatment must be maintained during the proliferative phase of the hemangioma or until there is no visible improvement.

  • – Gradual reduction of the dose for a period of 2 weeks.

Haider et al. published a protocol in 2010 for the treatment with oral propranolol without the need for hospitalization (Fig. 4) in 17 patients and achieved growth detention or size decrease of all treated lesions. There were only mild side effects in 6 of these patients, and there was no need to suspend treatment in any patient17 (Table 1).

Table 1 Protocol for the administration of propranolol (modified from Haider, et al.16

Suspension 20 mg/5 mL or 40 mg/5 mL
Dose 0.5 mg/kg/day divided into 3 doses for 2-3 days
1.0 mg/kg/day divided into 3 doses for 2-3 days
1.5 mg/kg/day divided into 3 doses for 2-3 days
2.0 mg/kg/day divided into 3 doses (final)
Monitoring Measure blood pressure + heart rate 24 h after each dose change
Discontinuation Decrease the dose gradually for 2 weeks

Figure 4 Protocol for the evaluation of patients prior to treatment with propranolol (modified from Haider, et al.16). aLobulated mass with a geographical configuration. PHACE: (P)osterior fossa and other structural brain malformations; (H)emangiomas; (A)rteries anomalies; (C)ardiac anomalies/(C)oarctation of the aorta; and (E)ye abnormalities; NMR: nuclear magnetic resonance. 

Guo, al. reported for the first time the effectiveness of 0.5% topical timolol solution applied directly on the surface of the lesion18. Since then, several studies have shown the effectiveness of topical treatment with 0.5% timolol solution or 0.1% gel 3 or 4 times a day, with an excellent safety profile. Likewise, it has been shown that the capillary hemangiomas that best respond to this treatment are the superficial ones and those that are in the proliferative phase16,18-24.

In most referral centers, topical or systemic beta-blockers, depending on the characteristics of the lesion, are nowadays the first-line treatment for this type of lesions.

Conclusions

Capillary hemangiomas are the most common periocular tumors in childhood and represent an important risk factor for visual loss and amblyopia even though the natural history of the disease is spontaneous regression.

The identification and treatment of amblyogenic lesions is extremely important, as well as the monitoring of cases in which the risk of evolving towards an amblyogenic lesion is high.

Currently, beta-adrenergic antagonists have revolutionized the treatment of these injuries, giving an invaluable option to the therapeutic arsenal, with excellent results and safety profile.

Nowadays, the gold standard for the treatment of capillary hemangiomas is, without a doubt, the treatment with beta-blockers, either systemic or topical, depending on the type of hemangioma. With this safer and more effective treatment, we can currently treat this lesions that in the past were just kept under observation, diminishing the cosmetic sequelae and the social stigma of patients having such lesions in their facial area.

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Ethical disclosures

Protection of human and animal subjects. The authors declare that no experiments were performed on humans or animals for this study.

Confidentiality of data. The authors declare that they have followed the protocols of their work center on the publication of patient data.

Right to privacy and informed consent. The authors have obtained the written informed consent of the patients or subjects mentioned in the article. The corresponding author is in possession of this document.

Received: September 26, 2018; Accepted: February 26, 2019

* Correspondence: Carlos Fleitman-Broder Av. Vasco de Quiroga, 4001, Torre A, 5.* Cons. 2, Col. Santa Fe, Del. Cuajimalpa, Mexico City, Mexico E-mail: cfleitman@gmail.com

Conflicts of interest

The author declares no conflict of interests with any of the contents or medications mentioned in this article.

Creative Commons License Instituto Nacional de Cardiología Ignacio Chávez. Published by Permanyer. This is an open ccess article under the CC BY-NC-ND license