Bilateral Optic Neuropathy Associated with Multiple Myeloma

Ophthalmic Manifestations of Hematopoietic Malignancy

Purpose. To report the ocular findings in patients with hematopoietic malignancy with optic nerve involvement and abducens nerve palsy. Methods. The medical records of all cases of hematopoietic cancer with ophthalmic involvements seen in the Department of Ophthalmology of the National Center for Global Health and Medicine between 2009 and 2014 were reviewed. Results. Eight patients with hematopoietic cancer with optic nerve invasion or abducens nerve palsy were studied. The primary diseases were 3 cases of multiple myeloma, 1 case of acute lymphocytic leukemia, 1 case of follicular lymphoma, and 3 cases of AIDS-related lymphoma. Six cases had optic nerve invasion, 2 cases had abducens nerve palsy, and 1 case had optic nerve invasion of both eyes. The median visual acuity of eyes with optic nerve invasion was 0.885 logarithm of the minimum angle of resolution (logMAR) units. The final visual acuity of eyes with optic nerve invasion was 1.25 logMAR units, and that of those with sixth-nerve palsy was −0.1 logMAR units. Six cases died during the five-year follow-up period. An ophthalmic involvement in patients with hematopoietic cancer, especially AIDS-related lymphoma, was associated with poor prognosis. Conclusion. Because ophthalmic involvement in patients with hematopoietic malignancy has a poor prognosis, an early diagnosis of the cancers by the ophthalmologic findings by ophthalmologists could improve the prognosis.

Bilateral Optic Disc Edema as a Presentation of an Obstructing Spinal Plasmacytoma

Purpose

To report a rare case of bilateral optic disc edema as presentation of an obstructing spinal plasmacytoma.

Methods

Case report.

Results

A 41-year-old healthy man presented with distortion of his peripheral vision for 9 months. He denied headaches or neurologic symptoms. Examination showed bilateral optic disc swelling, radial disc hemorrhages, and absent spontaneous venous pulsations. Brain magnetic resonance imaging (MRI) and magnetic resonance venography were unrevealing. Lumbar puncture showed a normal opening pressure of 19 cm cerebrospinal fluid (CSF). CSF protein was significantly elevated at 3.22 g/L (0.10-0.45 g/L). Spinal MRI with contrast revealed a tumor in the T9 vertebral body extending through the disc spaces into T8 and T10, compressing the spinal cord. Computed tomography-guided biopsy confirmed a spinal plasmacytoma. He received radiotherapy to the spine T7-T11 to reduce spinal cord compression followed by a 6-month course of chemotherapy with dexamethasone, cyclophosphamide, and thalidomide. Disc swelling improved on starting radiotherapy with complete resolution 8 months posttreatment. MRI spine showed reduction of tumor.

Conclusions

This case highlights the importance of spinal imaging in patients with normal cranial scans and raised CSF protein levels who lack the typical idiopathic intracranial hypertension phenotype.

Rapidly progressing glaucoma associated with monoclonal gammopathy

A 63 year old woman with surgically controlled primary open-angle glaucoma developed sudden visual field deterioration and subjective visual loss despite stable intraocular pressure in both eyes. An extensive systemic workup was performed which revealed a diagnosis of monoclonal gammopathy of undetermined significance. Further work-up should be considered when the extent of a patient's vision changes is not consistent with a known preexisting disease such as glaucoma.

Acute optic neuropathy associated with an intracranial mass in a patient with POEMS syndrome

A 43-year-old man with POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes), including long-standing optic disc swelling, had sudden painless vision loss in the left eye. Brain MRI revealed an intracranial mass adjacent to the left optic nerve and enhancement of the optic nerve. The mass decreased in size following chemotherapy for myeloma with some recovery of vision. This represents a unique case of optic neuropathy due to presumed plasmacytoma in osteosclerotic IgA myeloma and POEMS syndrome.