Elsevier

Surgical Neurology

Volume 64, Issue 2, August 2005, Pages 154-159
Surgical Neurology

Neoplasm
Intracranial capillary hemangioma: case report and review of the literature

https://doi.org/10.1016/j.surneu.2004.10.025Get rights and content

Abstract

Background

Capillary hemangiomas are benign vascular lesions that commonly present at birth or in early infancy on the face, scalp, back, or chest. The authors present an exceedingly rare case of an intracranial capillary hemangioma arising in an adult. Only 4 biopsy-proven cases have been reported in the pediatric population previous to this case report.

Case Description

A 31-year-old pregnant woman presented at 38 weeks of gestation with severe headaches, nausea, and vomiting. Imaging revealed an extra-axial mass lesion arising from the tentorium with both supra- and infratentorial components. The patient underwent a resection of her tumor, which was diagnosed as a capillary hemangioma by histopathologic examination. The patient required 2 further resections after the lesion exhibited a rapid regrowth from residual tumor in the left transverse sinus. The patient has remained free of disease 41 months out from her third surgery.

Conclusions

Intracranial capillary hemangiomas are exceedingly rare entities, with a capability for rapid growth. When gross total resection cannot be achieved, these patients should be observed closely, and the use of adjuvant radiotherapy should be considered.

Introduction

Capillary hemangiomas are benign vascular neoplasms. They commonly present congenitally or in early infancy, with 10% of these tumors presenting in the first year of life [2], [20]. Typically, these lesions grow rapidly until their growth plateaus between 8 and 12 months. Often, these lesions undergo complete spontaneous regression by 5 years. When these lesions do not regress, they are usually treated surgically. When these tumors occur in adults [14], they occur more often in women, where these tumors may undergo changes in their size relative to hormonal cycles and pregnancy [6]. They are usually found on the face, scalp, back, or chest, but may appear anywhere in the body. Although capillary hemangiomas are benign tumors, they can recur after partial [25] or even complete [5] resection.

Histologically, these tumors are characterized by a low-power lobular architecture with cellular lobules separated by variable degrees of fibrosis, depending on the age of lesion and the extent of regression. Careful inspection reveals plump endothelial cells forming poorly defined capillary channels. Fibroblasts, pericytes, and mast cells are also seen in these lesions. Characteristic features of these lesions, including their vascular nature when densely cellular, may be highlighted by histochemical and immunohistochemical special stains [9].

Capillary hemangiomas involving the nervous system are extremely rare. Cases of capillary hemangiomas arising from the meninges [35], nerve roots [30], cauda equina [11], [15], [18], [28], and spinal cord [1], [23], [31] have been previously reported. Although intraorbital capillary hemangiomas are a well-described entity, there are only 4 other reports of this lesion occurring intracranially [32], [33], [34], [35]. We present a case of an adult with an extra-axial mass lesion arising from the tentorium into the infra- and supratentorial compartments. The lesion was also noted to invade the left transverse sinus. After resection, the tumor's histopathology was classic for a capillary hemangioma. The lesion rapidly reoccurred and the patient had to undergo re-resection twice. The management of this lesion and a review of the literature are discussed.

Section snippets

Case report

A 31-year-old woman presented in August of 1999 at 38 weeks of gestation with severe headaches, nausea, and vomiting. The patient had no history of preclampsia, stroke, or vascular risk factors. Her initial neurological examination revealed a right temporal field cut, but was otherwise within normal limits. A computerized topography scan was obtained, which revealed the presence of a large mass arising from the tentorium extending into the left occipital lobe and left cerebellar hemisphere.

Pathological findings

Gross examination of the original and recurrent tumors revealed a firm, pink-tan, hemorrhagic mass with dural attachments. All specimens were then fixed in 10% buffered formalin, routinely processed, and embedded in paraffin. Sections were stained with hematoxlyin and eosin. All stains were performed with appropriate controls. Microscopic examination revealed a vascular tumor comprised of nests and lobules of vascular channels lined by well-differentiated endothelial cells (Fig. 6). The tumor

Discussion

Capillary hemangiomas involving the central nervous system are extremely rare. Other tumors in the differential diagnosis include hemangioblastoma, hemangioendothelioma, and hemangiopericytoma. Both hemangioendothelioma and hemangiopericytoma are tumors with prominent vascular components and recognized potential for more aggressive biologic behavior. Distinguishing these entities from a capillary hemangioma is critical in preventing unnecessary morbidity due to inappropriate treatment,

Conclusions

Intracranial capillary hemangiomas are exceedingly rare entities, with a capability for rapid growth. When these lesions are encountered, a gross total resection is the goal, as it is with all neoplasms. When this cannot be achieved, these patients should be observed closely and the use of adjuvant radiotherapy should be considered.

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