Ancient Neurilemmoma (Schwannoma)

Dahl, Ingvar

doi:10.1111/j.1699-0463.1977.tb03896.x

Cited by 65 publications

(49 citation statements)

References 17 publications

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“…Schwannomas are mostly benign, but malignant schwannomas are also occasionally reported [1,2]. The usual locations of these tumors are the head, neck, arms, legs, body, and breast.…”

Section: Introductionmentioning

confidence: 95%

A false positive for metastatic lymph nodes in the axillary region of a breast cancer patient following mastectomy

et al. 2009

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Recent advanced imaging modalities such as positron emission tomography (PET) detect malignancies using 2-[18F]-fluoro-2-deoxy-D: -glucose (18-FDG) with high accuracy, and they contribute to decisions regarding diagnosis, staging, recurrence, and treatment response. Here, we report a case of false-positive metastatic lymph nodes that were diagnosed by PET/CT and ultrasonography in a 48-year-old breast cancer patient who had undergone mastectomy. The tumors, which were oval shaped and resembled lymph nodes, were detected by ultrasonography. PET/CT revealed high uptake of 18-FDG in the tumors. To investigate the proposed recurrence and to re-evaluate the biology of the recurrent tumors, a tumor was removed from the brachial plexus of the patient. Histological findings revealed it to be a schwannoma. All imaging modalities including PET/CT failed to distinguish benign tumors from metastatic lymph nodes in the brachial plexus. After resection of the schwannomas, the patient complained of a slight motor disorder of the second finger on the right hand. Hence, it is important to consider a false-positive case of lymph node metastasis in a breast cancer patient following mastectomy.

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“…Schwannomas are mostly benign, but malignant schwannomas are also occasionally reported [1,2]. The usual locations of these tumors are the head, neck, arms, legs, body, and breast.…”

Section: Introductionmentioning

confidence: 95%

A false positive for metastatic lymph nodes in the axillary region of a breast cancer patient following mastectomy

et al. 2009

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“…Schwannomas can show a variety of degenerative changes, such as cyst formation, calcification, hemorrhage, and hyalinization (5). Tumors that have undergone cystic degeneration (presumably because they have outgrown their blood supply) are sometimes capable of relatively rapid expansion because of enlargement of their cystic component (18).…”

Section: Introductionmentioning

confidence: 99%

Intraorbital Abducens Nerve Schwannoma

et al. 2012

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“…Nuclear atypia, xanthomatous change, and fibrosis are additional histopathological findings. The abundance of foamy macrophages, discreet verocay bodies may misdiagnose malignancy [12]. The above longstanding histopathological alteration has yielded the term as "Ancient Schwannoma".…”

Section: Discussionmentioning

confidence: 99%

An Unusual Variant of Cerebellopontine Angle Schwannoma in a Young Nepalese Girl

Kt¹,

Koirala²

2017

J Clin Exp Pathol

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An unusual variant of cerebellopontine angle schwannomas is extremely rare. Histologically, the tumor has atypical changes misleading the diagnosis. We report 20-year-old Nepalese girl from far-eastern community presented with features of raised intracranial pressure and difficulty in walking. MR imaging revealed intensely contrast enhanced well defined huge solid tumor in right cerebellopontine angle region with foci of multiple cystic components. The tumor was displacing the brain stem structures with dilatation of lateral and third ventricles. The altered radiological finding made discrepancy diagnosis. Conventional angiography demonstrated major feeders from the auricular branch of the right external carotid artery. The tumor was embolized with polyvinyl alcohol particles followed by gross total lateral suboccipital excision. Histopathology unit detailed it as ancient schwannoma with pleomorphic changes.

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Ancient Neurilemmoma (Schwannoma)

Cited by 65 publications

References 17 publications

A false positive for metastatic lymph nodes in the axillary region of a breast cancer patient following mastectomy

A false positive for metastatic lymph nodes in the axillary region of a breast cancer patient following mastectomy

Intraorbital Abducens Nerve Schwannoma

An Unusual Variant of Cerebellopontine Angle Schwannoma in a Young Nepalese Girl

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