Journal of Academy of Medical Sciences

: 2012  |  Volume : 2  |  Issue : 4  |  Page : 129--131

Multiple cranial nerve palsies: As first presentation of multiple myeloma with intracranial plasmacytoma

Th Suraj Singh, GS Gurudath, Th Bhimo Singh, N Biplab Singh 
 Department of General Medicine, Regional Institute of Medical Sciences, Imphal, Manipur, India

Correspondence Address:
Dr. Th Suraj Singh
Department of General Medicine, Regional Institute of Medical Sciences, Imphal - 795 004, Manipur


Compression of cranial nerves (CNs) by an intracranial plasmacytoma is considered to be an unusual presentation of multiple myeloma (MM). Here, we report a case of right 3 rd , 6 th , 9 th , 10 th and 12 th CN involvement, which emphasizes the fact that multiple CN palsy can be the first presenting feature of MM.

How to cite this article:
Singh T, Gurudath G S, Singh T, Singh N B. Multiple cranial nerve palsies: As first presentation of multiple myeloma with intracranial plasmacytoma.J Acad Med Sci 2012;2:129-131

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Singh T, Gurudath G S, Singh T, Singh N B. Multiple cranial nerve palsies: As first presentation of multiple myeloma with intracranial plasmacytoma. J Acad Med Sci [serial online] 2012 [cited 2021 Oct 15 ];2:129-131
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Central nervous system (CNS) involvement in multiple myeloma (MM) is rare (1%). [1] Only few cases of MM presenting as an intracranial plasmacytoma had been described. In fact, the median interval from diagnosis to CNS involvement is 11 to 13 months. [1] Isolated cranial neuropathies had been reported as symptoms of solitary clival plasmacytoma. [2] Multiple cranial neuropathies had been reported in late stages of MM. [3],[4],[5] Very rarely multiple cranial nerves (CN) involvement by plasmacytoma may be presenting feature of MM. [6],[7],[8] Here, we report a case of multiple CN palsy (right 3 rd , 6 th , 9 th , 10 th and 12 th CNs) as first presentation of the intracranial plasmacytoma.

 Case Report

A 49-year-old male patient came with the complaints of daily headache, diplopia and recurrent fever with respiratory tract infections since 3 months; drooping of right upper eye lid, dysphagia and deviation of the tongue to the right side since 1 month. General physical examination showed mild pallor and swelling over the right sterno-clavicular joint [Figure 1]; bony tenderness was present over ribs and cervical spine. Neurological examination revealed right third (pupil sparing), 6 th , 9 th , 10 th , 12 th CN paresis were present [Figure 1]. Rest of examination was all normal. Blood routine examination showed hemoglobin of 9.2 g/dl, total leucocytes count of 17,790 cells/cu mm; neutrophil was 67% and lymphocyte was 30%. Erythrocyte sediment rate was 82 mm/1 st h. No abnormal cells are seen in peripheral smear. Urine routine examination was normal and urinary Bence-Jones proteins were absent. Blood chemistry showed serum creatinine of 4.3 mg/dl, urea of 131 mg/dl, serum calcium was 15.2 mg/dl and serum phosphorus was 5.9 mg/dl. Rheumatoid factor and antinuclear antibody were negative. Cerebrospinal fluid routine examination was normal with no malignant cells. X-ray skull and X-ray chest showed multiple punched out lesions [Figure 2]a and b. Computed tomography of the spine showed multiple punched out osteolytic lesions over the vertebral body-dorsal 6 th , 8 th , 10 th , and lumbar second [Figure 3]. Magnetic resonance imaging (MRI) brain showed an extra axial mass at the base of the skull measuring 3.5 × 2.3 cm involving the right side of clivus, dorsum sella, sphenoid, and right cavernous sinus causing the obliteration of cavernous sinus and its contents and extending up to right cerebellopontine angle, isointense in Tl- and T2-weighted images with gadolinium-diethylenetriamine pentaacetic enhancement [Figure 4]a and b. Bone marrow aspiration showed 58% plasma cells with a good number of binucleated forms and flame cells [Figure 5]a. Aspiration cytology of right sterno-clavicular joint swelling showed binucleated plasma cells suggestive of plasmacytoma [Figure 5]b. Serum electrophoresis showed presence of narrow and moderately intense band in gamma fraction suggestive of M-Spike. After reaching the diagnosis of MM with multiple plasmacytoma, patient was treated with thalidomide 200 mg/day and dexamethasone. After 1 month, patient showed improvement clinically [Figure 6].{Figure 1}{Figure 2}{Figure 3}{Figure 4}{Figure 5}{Figure 6}


Plasmacytoma may be intramedullary or extramedullary and primary or secondary to disseminated MM. Plasmacytoma and MM represent a spectrum of the same disease, where plasmacytoma refers to the localized disease and MM implies systemic dissemination. MM may show evidence of intracranial or orbital encroachment at any stage of myeloma, and occasionally this may be the first manifestation. This case presented to us initially with right 3 rd , 6 th , 9 th , 10 th and 12 th CN palsy, and subsequent investigation confirmed the diagnosis of plasmacytoma with MM. Among the neurologic complications in 277 myeloma patients studied by Silverstein and Doniger [9] Spinal cord compression was the most frequent 27 cases (9.7%), while CN involvement was unusual, that is, seven cases (2.5%) and it was the initial manifestation in only five patients (1.8%). Among these seven patients three patients had retro-orbital myeloma associated with proptosis; one had extra ocular movement abnormality, and other two had optic nerve involvement. One patient had 6 th CN palsy and other had 3 rd , 4 th and 6 th CNs palsy. The remaining two other patients had papilledema one of which was associated with 7 th and 12 CN palsy. Among the 25 proven, cases of myeloma with CN palsies collected by Clarke, [10] 6 th CN was the most common, followed by 7 th , 8 th and 5 th CNs. The present case belongs to Group I of Clarke's clinical classification of myelomas. [10] There are several cases of isolated cranial neuropathies as symptoms of solitary plasmacytoma. Multiple cranial neuropathies in combination such as Foster Kennedy syndrome, cavernous sinus syndrome, Gradenigo syndrome and jugular foramen syndrome had been reported in late stages of MM. [3],[4],[5] Multiple CNs involvements as the initial presentation for plasmacytoma had been reported very rarely only. [6],[7],[8],[11] Ko et al. [6] reported a case of the intracranial plasmacytoma in the cavernous sinus presented as left IV and partial V CN palsy. Doniger et al. [7] had reported a case of plasmacytoma in spinoclival region with disseminated MM presented as third and fourth complete CN palsy. Tappin et al. reported a case of lower CN palsy in the form of Collet-Sicard syndrome, which turnout to be the intracranial plasmacytoma. [8] Our case in-spite of being in stage III with multiple areas of spread/conversion to MM with deranged laboratory data, multiple cranial neuropathies with involvement of five nerves (3 rd , 6 th , 9 th , 10 th and 12 th ) was the initial presentation leading to the diagnosis. MRI study in this patient revealed a single plasmacytoma in the base of the skull causing obliteration of cavernous sinus and its contents extending up to right cerebellopontine angle. The extend of the lesion co-relate with our multiple CNs involvements. CN involvement is almost always due to direct compression of CNs by tumor arising from skull. [9] When plasmacytoma appears at different locations in the context of MM, as in our case, the histological diagnosis of all these lesions is not needed. [7] We are not certain whether plasmacytoma was the initial manifestation of MM or plasmacytoma progressing to MM. Both circumstances carry a worse prognosis [12] and it should be treated aggressively. To conclude, intracranial plasmacytoma is a rare manifestation of MM and multiple CN palsy can be the first presentation of MM.


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