Intraneural Lipoma Research Articles

Intraneural Lipoma Associated With a Branch of the Superficial Peroneal Nerve

Intraneural lipoma is a hamartoma that may involve various nerves, although its association with the superficial peroneal nerve is extremely rare. In this article, we describe the case of a young female with an intraneural lipoma localized to the superficial peroneal nerve. Also highlighted is the importance of meticulous clinical examination in order to accurately diagnose the entity so as to avoid expensive diagnostic imaging investigations.

Intraneural Lipoma of the Posterior Interosseous Nerve

Lipomas arising in the peripheral nerves are rare tumors, with most arising in the forearm and wrist, and most have occurred within the median nerve. This report describes a case with large lipoma arising in the posterior interosseous nerve.

Lipomatous, vascular, and chondromatous benign tumors of the peripheral nerves

Benign peripheral nerve lesions of lipomatous, vascular, and chondromatous origin are very rare. Only one previous case of brachial plexus involvement by such a tumor has been reported. The authors report on their experience with peripheral nerve tumors in three patients and review the available literature on these topics. The three cases discussed include a 44-year-old woman with an intraneural lipoma of the right middle trunk, a 40-year-old woman with an intraneural hemangioma infiltrating the right posterior cord, and a newborn male with a predominantly cartilaginous hamartoma originating from the right C-5 nerve root. The literature review yielded six previous cases of intraneural lipoma, approximately 50 cases of lipofibromatous hamartoma, 13 cases of intraneural hemangioma, and no previous case of cartilaginous hamartoma originating from a nerve. Intraneural lipomas are well encapsulated, and gross-total resection can be achieved. Lipofibromatous hamartomas are diffusely infiltrative; decompressive debulking and neurolysis is often the most appropriate initial approach for patients with symptomatic lesions. Resection of intraneural hemangiomas can be achieved but may require nerve resection and repair in some cases. Debulking has been reported to provide prolonged symptomatic relief in these lesions, and preoperative embolization and postoperative radiotherapy were beneficial in the case presented here. To the authors' knowledge, this is the first reported case of a cartilaginous hamartoma infiltrating a peripheral nerve. Gross-total resection of symptomatic intraneural lipomas is feasible and apparently curative. The optimal treatment for lipofibromatous hamartomas and vascular and chondromatous lesions of the peripheral nerves is uncertain and should be guided by the severity of symptoms.

Intraneural lipoma of the ulnar nerve: A case report and review of literature

Intraneural lipoma of the ulnar nerve: A case report and review of literature

Intraneural Lipoma of the Sciatic Nerve

A large, well-encapsulated intraneural lipoma occurred within the sciatic nerve of a 34-year-old woman. In a review of the literature, significant differences were noted between the well-encapsulated and the diffusely infiltrative lipofibromatous hamartoma types of intraneural lipomas. The average age at the time of appearance of the well-encapsulated type is 45 years, with female predominance, while the infiltrative type arises in a younger age group (average age, eight years) with no sexual predominance. To avoid a recurrence, total excision is recommended in cases of the well-encapsulated type. Attempts to excise the diffusely infiltrative type are likely to fail.

Intraneural lipoma of the median nerve—Case report and literature review.

An encapsulated intraneural lipoma of'the median nerve in a 54-year-old patient is reported.

Intraneural lipoma of the median nerve—Case report and literature review

An encapsulated intraneural lipoma of'the median nerve in a 54-year-old patient is reported.

Nerve tumors of the hand and forearm

Peripheral nerve tumors comprise less than 5% of all tumors of the hand. The most common solitary nerve tumor is the neurilemmoma, which arises from the neural sheath, is well encapsulated, minimally symptomatic, and may be surgically enucleated without producing a neurological deficit. Neurofibromas may be solitary, multiple, or associated with von Recklinghausen's disease. They are usually centrally placed with nerve fibers traversing the tumor mass making it more difficult to remove the tumor without producing permanent neurological damage. Malignant tumors include neurofibrosarcomas which often are very aggressive, requiring wide excision or amputation, and the rare neuroepitheliomas. Reported nerve tumors, intraneural in location but nonneural in origin, include fibrofatty infiltration of the median and digital nerves, intraneural lipoma, hemangioma, and ganglion cysts. These lesions may be treated by decompression or excision, depending on the nature of the tumor. Four unusual cases are described.

Intraneural lipoma of the median nerve; report of two cases.

Intraneural lipoma of the median nerve; report of two cases.

Intraneural lipoma of the median nerve. Report of two cases and review of the literature

Eleven cases of intraneural lipomata of the median nerve found in the literature are reviewed. One additional case is reported. The clinical findings, diagnosis, and treatment are discussed. A similar case, in which the intraneural lipoma was part of macrodactyly, is also reported.

Intraneural Lipoma of the Median Nerve

Eleven cases of intraneural lipomata of the median nerve found in the literature are reviewed. One additional case is reported. The clinical findings, diagnosis, and treatment are discussed. A similar case, in which the intraneural lipoma was part of macrodactyly, is also reported.