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Year : 2008  |  Volume : 56  |  Issue : 4  |  Page : 334-336

Neurothekeoma of the eyelid: A case report

1 Department of Ophthalmology, St. Johns Medical College Hospital, Bangalore - 560 034, India
2 Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bangalore - 560 029, Karnataka, India

Date of Submission08-Jul-2007
Date of Acceptance14-Nov-2007
Date of Web Publication19-Jun-2008

Correspondence Address:
Sunu Mathew
Department of Ophthalmology, St. Johns Medical College Hospital, Bangalore - 560 034, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0301-4738.41421

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The purpose of this article is to describe a rare benign tumor of nerve sheath origin arising from the eyelid in an elderly male. Local excision was done and histopathological examination revealed a neurothekeoma. Six months later the patient was doing well with no recurrence. The case was unique in that the patient was an elderly male while neurothekeoma is commonly seen on the face of young adults, especially females.

Keywords: Eyelid, neurothekeoma, tumor

How to cite this article:
Mathew S, Nandeesh B N, Vasu U, Michael SG. Neurothekeoma of the eyelid: A case report. Indian J Ophthalmol 2008;56:334-6

How to cite this URL:
Mathew S, Nandeesh B N, Vasu U, Michael SG. Neurothekeoma of the eyelid: A case report. Indian J Ophthalmol [serial online] 2008 [cited 2020 Aug 14];56:334-6. Available from: http://www.ijo.in/text.asp?2008/56/4/334/41421

Neurothekeoma is a rare benign soft tissue neoplasm of probable nerve sheath origin. They usually occur on the face and extremities of young adults and show a female preponderance. [1] Only six cases of neurothekeoma have been reported till date. [2],[3],[4],[5] We present here a case of neurothekeoma on the eyelid in an elderly male.

  Case Report Top

A 66-year-old man presented to the out patient department with a painless swelling on the medial half of the right lower lid. It was of insidious onset, gradually increasing in size over the past eight years. Fine needle aspiration cytological examination of the lesion yielded only blood and diagnosis could not be established. He was a known diabetic and hypertensive, on treatment for the past eight years.

Examination of the lids and adnexa of the right eye revealed a single, soft, non-tender swelling measuring 2x1.9x1 cm [Figure 1] with a lobulated surface, arising from the medial half of the lower lid. The lower lid margin along with the punctum was everted. The skin over the swelling showed prominent dilated veins. The palpebral conjunctiva in the region of the swelling showed keratinisation. Lid closure was adequate. No regional lymph nodes were palpable. Rest of the ocular examination was normal. The left eye was normal. The patient had watering of the eyes due to the exposure. The mass was causing a cosmetic deformity and so microsurgical excision with reconstruction of the lower lid was planned under local anesthesia.

A pentagon full-thickness resection of the tumor mass with microscopically clear margins on all sides was done and the tissue sent for histopathology examination. The defect created by this resection was a little less than half of the eyelid. Since the lower lid tissues were already stretched by the presence of the tumor, lid repair was possible with lateral cantholysis alone. The lid defect was closed in layers using 6-0 polyglactin sutures and the lids were apposed using a frost suture. Routine postoperative care was given to the patient and the frost sutures were removed after 48 h. The patient on serial follow-up was normal at six months with no evidence of recurrence.

The resected mass was a multilobulated pale bluish lesion [Figure 2] covered by thin, stretched skin. The lesion was dissected by fibrous septae [Figure 3A] of varying thickness into nodular masses. No adnexal structures of the eyelid were entrapped in the mass. The lesion showed spindle-shaped and stellate cells [Figure 3B] arranged in small fascicles in an alcian blue positive myxoid stroma. In each nodule, fine wavy bundles and swirling whorls of collagen (highlighted by reticulin silver stain) enclosing the elongated Schwann cells and mast cells were observed. The spindle and stellate cells expressed S-100 protein [[Figure 3], inset] confirming its nerve sheath origin. Immunostatin for neurofilament revealed occasional clusters of axons while the cells in the lesion were not immunolabeled for antibodies to desmin and cytokeratin. No ganglionic cells were found and the mitotic activity was very low. The features were characteristic of neurothekeoma-myxoid variant. The presence of axons and absence of entrapment of adnexal structures with S-100 positivity of the cells differentiated this lesion from superficial angiomyxoma which was a very close histological differential diagnosis.

  Discussion Top

Myxoid neurothekeoma or nerve sheath myxoma is a rare benign neoplasm of putative peripheral nerve sheath origin first described in 1969 by Harkin and Reed [6] and subsequently termed 'neurothekeoma' by Gallager and Helwig in 1980. [1]

It often affects the skin with predilection for the face and extremities of young adults. Females seem to be more often affected than males. They are often solitary and may be either asymptomatic or may present as a painful, raised, skin-colored, well-circumscribed dome-shaped nodule less than 3 cm in diameter. The tumor occurs in a myxoid or classic variant, cellular variant and an intermediate (mixed) variant, [7] the myxoid variant being relatively common. This lesion forms an important differential diagnosis for myxoid soft tissue tumors, especially the benign ones. Although excision is the mode of treatment for these benign myxoid tumors, proper histopathological typing is needed as some of these tumors like superficial angiomyxoma show tendencies towards local recurrence and may be associated with syndrome complex like association of superficial angiomyxoma with Carney complex, [8] an autosomal dominant syndrome complex comprising myxomas of heart and skin, hyperpigmentation of the skin (lentiginosis) and endocrine overactivity. [9]

The myxoid neurothekeoma lesions are consistently positive for S-100 proteins. Hence S-100 is considered to be a sensitive immunohistochemical marker for neurothekeoma. They are also known to be positive for vimentin but negative for cytokeratin, desmin, CD34, SMA (smooth muscle actin). These lesions can also sometimes show multinucleate cells, focal nuclear atypia, foci of ossification and cartilaginous metaplasia.

This case was unique in that the patient was a male in the elderly age group. Although neurothekeoma is rare, the clinician should consider this entity in the differential diagnosis of solitary nodule of the eyelid, as it is imperative to distinguish it from malignant lesions so that aggressive therapy can be avoided. The treatment of choice is excision with clear margins and no recurrences have been reported.

  Acknowledegment Top

We are grateful to Professor S.K. Shankar for his invaluable guidance and support.

  References Top

Gallager RL, Helwig EB. Neurothekeoma: A benign cutaneous tumor of neural origin. Am J Clin Pathol 1980;74:759-64.  Back to cited text no. 1
Nakamura YU, Hirakata T, Mukai M. Nerve sheath myxoma of the lower lid. Br J Ophthalmol 1994;78:729.  Back to cited text no. 2
You TT, Kaiser PK, Netland TP, Jakobiec FA. Neurothekeoma palpebrae: A rare nerve sheath tumor arising in the eyelid. Ophthalmol Plast Reconstr Surg 1999;15:448-9.  Back to cited text no. 3
Misra RP. Neurothekeoma palpebrae. Plast Reconstr Surg 2004;114:1975-6.  Back to cited text no. 4
Kakizaki H, Zako M, Iwaki M, Mito H. Successful percutaneous incision and pathological examination of a rare nerve sheath myxoma: Diagnosis and treatment. Jpn J Ophthalmol 2004; 48:78-9.  Back to cited text no. 5
Harkin JC, Reed RJ. Tumors of peripheral nervous system. In : Atlas of tumour pathology. 2 nd ed. Washington DC: AFIP; 1969. p. 60.  Back to cited text no. 6
Fullen Dr, Lowe L, Su LD. Antibody to S100a6 protein is a sensitive immunohistochemical marker for neurothekeoma. J Cutan Pathol 2003;30:118-22.  Back to cited text no. 7
Yuen HK, Cheuk W, Luk FO, Wat CS, Auyeung KC, Lam DS. Solitary superficial angiomyxoma in the eyelid. Am J Ophthalmol 2005;139:1141-2.  Back to cited text no. 8
Carney JA, Gordon H, Carpenter PC, Shenoy BV, Go VL. The complex of myxomas, spotty pigmentation, and endocrine overactivity. Medicine (Baltimore) 1985;64:270-83.  Back to cited text no. 9


  [Figure 1], [Figure 2], [Figure 3], [Figure 3A], [Figure 3B]

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