Primary central nervous system lymphoma presenting with Parkinsonism as an initial manifestation: A case report and literature review

  • Authors:
    • Rintaro Okano
    • Kohei Suzuki
    • Yoshiteru Nakano
    • Junkoh Yamamoto
  • View Affiliations

  • Published online on: March 12, 2021     https://doi.org/10.3892/mco.2021.2257
  • Article Number: 95
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Abstract

Primary central nervous system lymphoma (PCNSL) is a rare intracranial neoplasm in older adults. Tumor‑associated parkinsonism (TAP) in PCNSL is extremely rare, and its clinical features are unclear. The present report describes the case of a 75‑year‑old man who presented with parkinsonism due to multiple hyperintense lesions in the thalamus and periventricular white matter as visualized by magnetic resonance imaging (MRI). Due to the rapid progression of parkinsonism and lesion enlargement, the patient underwent stereotaxic biopsy. Subsequently, his condition was diagnosed as TAP in PCNSL at 2 months after onset. The patient completely recovered after treatment and experienced no recurrence of TAP for 8 months. Although it is difficult to distinguish TAP from vascular parkinsonism (VP) at initial consultation, the early diagnosis of PCNSL is important for improving prognosis. In the case of rapidly progressing parkinsonism, one should suspect the possibility of TAP associated with early‑stage PCNSL. Early treatment improves the chances of remission and decreases the possibility of recurrence.

Introduction

Primary central nervous system lymphoma (PCNSL) is a rare intracranial neoplasm. Although the incidence of PCNSL has increased in patients over 60 years of age in the past two decades; it currently accounts for a mere 2.4-4.5% of all newly diagnosed brain tumors (1,2). PCNSL is an uncommon subtype of extranodal non-Hodgkin lymphoma that involves the central nervous systems, and the majority of tumors are B-cell phenotypic origin. The risk factor for the development of PCNSL is immunodeficiency, however, there are also seems to be increase in incidence of PCNSL in immunocompetent individuals (2). PCNSL initially presents with various clinical symptoms, such as focal neurological deficits, neuropsychiatric symptoms, increased intracranial pressure, and convulsive seizures (3). Despite the varied clinical presentation, parkinsonism is extremely rare as an initial clinical symptom of PCNSL.

Here, we report a rare case of PCNSL presenting with parkinsonism as an initial clinical symptom in an older adult, and emphasize the difficulty in distinguishing tumor-associated parkinsonism (TAP) from vascular parkinsonism (VP) during the initial diagnosis.

Case report

A 75-year-old man without any history of immunocompromise was referred to our hospital due to bradykinesia, discrete movement disorder, and low speech for a month prior to referral. Before admission, the patient developed a broad base gait disturbance and a pill-rolling tremor, both of which were evident upon examination at the time of admission. (Fig. 1). Magnetic resonance imaging (MRI) with fluid-attenuated inversion recovery (FLAIR) showed multiple hyperintense lesions in the left basal ganglia, thalamus, and bilateral frontal periventricular white matter (Fig. 2A and B). A computed tomography (CT) showed low-density lesions in the bilateral periventricular white matter and a slightly hyperdense lesion in the left thalamus (Fig. 2C). A dopamine transporter single photon emission computed tomography (DAT SPECT) showed a decrease in 123I-Ioflupane uptake in the left striatum (Fig. 2D). Considering the chronic ischemic changes suspected from the MRI and DAT SPECT findings, we classified his condition as VP and discharged the patient with frequent follow-up instructions. One month later, the patient's condition further deteriorated, presenting with impairment of the postural reflex, a mask-like face, and micrographia. Due to the rapid progression of VP, he underwent reexamination by MRI, revealing enlargement of the hyperintense lesions in the left thalamus and frontal periventricular white matter with heterogeneous enhancement (Fig. 2E-H). He was subsequently admitted to our department, with a Karnofsky Performance Status (KPS) at admission of 40. Serological examinations showed mildly elevated interleukin-2 receptor levels (657 U/ml) and normal levels of lactate dehydrogenase (161 U/l). His HIV antibody test results were negative. Because of the rapid and atypical progression of the disease, we suspected TAP due to the brain lesion and performed a stereotactic biopsy for the left frontal periventricular lesion two months after onset of symptoms. The pathological examination revealed proliferation of medium- to large-sized atypical lymphoid cells around the small vessels. These tumor cells strongly expressed CD20, corresponding to a diffuse large B-cell lymphoma (DLBCL) (Fig. 3). A genetic analysis was not performed due to limitations in the examination. Given this report, we diagnosed his condition as TAP in DLBCL, and he immediately underwent corticosteroid therapy. His condition rapidly improved with treatment, and his KPS immediately after initial treatment improved to 70. He then underwent multidrug chemotherapy with rituximab, methotrexate, procarbazine, and vincristine two weeks after surgery. One month after treatment, the patient had completely recovered from TAP and was discharged without any neurological deficits. Follow-up MRI without contrast enhancement (four months after treatment) revealed that the lesion in the left thalamus had disappeared and the periventricular lesion had shrunk (Fig. 4A-D). He received seven cycles of chemotherapy, and ultimately achieved complete response. Eight months after treatment, his KPS remained at 70, and he had no recurrence of TAP.

Literature review

PCNSL presents various clinical symptoms, such as focal neurologic deficit in 70% of patients, behavioral neuropsychiatric changes in 43%, headache, nausea, and vomit associated with elevated intracranial pressure in 33%, and seizures in 14% (3). However, TAP in PCNSL is extremely rare, and only 5 cases, including ours, have been reported so far (Table I) (4-7). TAP in PCNSL is relatively common in older patients, with a mean age at diagnosis of 74.2 (range, 64–81) years, and no sex preference, with three male and two female patients. Several clinical symptoms associated with parkinsonism were described. All patients presented with bradykinesia and gait disorder, followed by rest tremor, rigidity and fixed face in 60%, impairment of the postural reflex in 40%, and abnormal posture in only one case at initial treatment. Three patients (60%) demonstrated laterality of clinical symptoms; however, two cases (40%) presented with bilateral symptoms. Most cases presented with lesions at multiple sites, including the basal ganglia in 80% (putamen and globus pallidus in 60%, thalamus in 20%), the periventricular white matter in 40%, and the corpus callosum in 20% of lesions. Only one case had a single lesion in the midbrain. Levodopa, which was started as initial treatment in three cases (60%), was not effective. As TAP is a rare clinical symptom and course of PCNSL, and because precise diagnosis is typically delayed (duration: Over seven months), the prognosis is poor in most cases.

Table I

Summary of tumor-associated parkinsonism in PCNSL.

Table I

Summary of tumor-associated parkinsonism in PCNSL.

First author, yearCaseAge, years/sexLesion siteClinical symptomsResponse to LevodopaTreatment after diagnosis of PCNSLDuration from diagnosis, monthsPrognosis (period from onset)Refs.
Pramstaller et al, 1999175/MBasal gangliaBradykinesia, gait disorder, abnormal posture, fixed faceNo responseMTX, corticosteroid, radiotherapy5Dead (7.5 months)(6)
Sánchez-Guerra et al, 2001264/FBasal ganglia, corpus callosum, periventricular white matterTremor, bradykinesia, rigidity, fixed faceNo responseCorticosteroid10Dead (10 months)(7)
Lin and Hong, 2010381/MMidbrainTremor, bradykinesia, rigidity, postural instability, gait disorder, fixed facePartial responseDeclined treatmentNo listedTransferred to hospice (not listed)(4)
Nagarajan et al, 2020476/FBasal gangliaBradykinesia, rigidity, gait disorderNot usedMTX as initial treatment, radiotherapy after recurrence8Recurrence (4 months), maintain remission (8 months)(5)
Present study575/MBasal ganglia, periventricular white matterTremor, bradykinesia, postural instability, gait disorderNot usedR-MPV2Maintain remission (8 months)-

[i] PCNSL, primary central nervous system lymphoma; M, male; F, female; MTX, methotrexate; R-MPV, rituximab, methotrexate, procarbazine hydrochloride, oncovin.

The first case of brain tumor with parkinsonism was reported in 1953, after then, several cases of TAP, which caused by meningioma, glioma, cavernoma, and other tumors, have sporadically been reported (8-11). Whereas, to the best of our knowledge, there are only 5 cases of TAP in PCNSL in the literatures as previously mentioned. Therefore, those clinical features are not well known, and TAP in PCLNS may be underestimated, clinicians should be aware of the risk of TAP in PCNSL.

Discussion

The clinical features of TAP in PCNSL are not well known because of their rare nature; however, it is important for diagnosis and treatment. Parkinson's disease (PD), which presents as bradykinesia with one additional symptom, such as rigidity, resting tremor, and postural instability, are well known. These tend to be unilateral initially, and present as persistent asymmetrical symptoms. In the beginning, symptoms are evident on one side of the body with the contralateral symptoms appearing within a few years (12). A previous report also described the clinical features of VP. The predominant manifestation is described as lower body parkinsonism, including gait disturbance and postural instability, which is similar to that observed in patients with PD. The progression of symptoms is variable in VP with an acute onset in some cases. These clinical symptoms commonly remain stable or deteriorate slowly (13). However, TAP in PCNSL progresses rapidly compared to PD and VP.

In the present case, the initial manifestation was bradykinesia and low voice. As parkinsonism progressed, clumsiness, gait disturbance, and pill rolling movement appeared within month after initial onset. Unilateral symptoms were observed in only three cases, and may be associated with multiple lesions at diagnosis in most cases. In addition, diurnal fluctuations of symptoms were not observed in the present case, which may have led to the distinction between PD and TAP. Levodopa was not administered in the present case. Generally, an excellent response to levodopa is a supportive prospective criterion in PD (12). However, it has been demonstrated to be ineffective or only partially responsive in other TAP cases. Thus, in the case of rapid progression of parkinsonism or ineffective levodopa, we should suspect the possibility of TAP of PCNSL in older patients with basal ganglia lesions.

It is also challenging but critical to distinguish between cerebral infarction (CI) and PCNSL in the early stages of disease. CI commonly occurs in the basal ganglia, including the thalamic area. In particular, older adult patients develop chronic cerebral ischemia in the white matter of the cerebrum, including the thalamus, leading to VP (13). In contrast, brain tumors, such as gliomas, germinomas, and teratomas, rarely occur and are localized to the thalamic area. Although PCNSL commonly develops in the periventricular region, white matter, and corpus callosum, 17% of PCNSLs are found in the thalamus and basal ganglia (14,15). It may be difficult to distinguish between PCNSL and CI of localized lesions in the thalamus using conventional MRI without contrast reagent. Generally, PCNSL presents as iso- or hypointense on T1-weighted image (T1WI) and iso- or hyperintense on T2-weighted image (T2WI)/FLAIR images (15). Chronic CI, including lacunar and white matter lesions are hyperintense on T2WI/FLAIR in ordinary cases. Although CE-T1WI depicts the characteristic homogenous enhancement on PCNSL, contrast-enhanced imaging is not necessarily used as a routine examination in cases suspected of CI at primary screening. However, the PCNSL lesion presents as slightly iso- or hyperdense on CT, which is related to a very high nuclear/cytoplasmic ratio, in contrast with CI lesions that show as hypodense (16). In our case, MRI revealed a localized hyperintensity in the thalamus on FLAIR, thus leading to the initial diagnosis of VP. Retrospectively, initial CT showed an iso- to slightly hyperdense thalamic lesions; thus, we should have suspected the possibility of PCNSL. While rare, we suggest that PCNSL should be considered as a differential diagnosis in localized thalamic lesions in older adults, even though it presents in.

The mechanism of TAP in PCNSL remains unclear. Brain tumors presenting with TAP occur in various locations, such as the brain stem, basal ganglia, frontal lobe, temporal lobe, cerebellum, hypothalamus, sella, and pineal regions (8,9,17-19). Generally, PD is associated with cell loss in the substantia nigra, whereas only 31% of brain lesions presenting with parkinsonism include the substantia nigra (20). Brain tumors disrupt the neuronal circuits, such as the axons of the presynaptic dopaminergic neuron and the output pathway from postsynaptic cells of the basal ganglia circuit to the cortex, either by the mass effect of the tumor itself or by peritumoral brain edema, leading to the development of parkinsonism (21). In PCNSL, tumor cells invade and damage the neuronal membranes in the basal ganglia, resulting in the development of TAP (22). In the present case, PCNSL located in the periventricular white matter, basal ganglia, and thalamus, and 123I-Ioflupane SPECT showed decreased 123I-Ioflupane uptake in the left basal ganglia, which then developed TAP. Generally, PD causes distinctive neuropathological brain changes, such as the formation of abnormal proteinaceous spherical bodies called Lewy bodies, and drug response becomes limited with disease progression (12). However, TAP recovered following treatment for PCNSL. Thus, PCNSL induces reversible dysfunction of neuronal circuits in the thalamus, basal ganglia, and cortex of the cerebrum and midbrain during invasion within the perivascular space, triggering the development of TAP. Due to the high tumor proliferation of PCNSL, TAP progresses rapidly. Although a precise diagnosis of TAP may be difficult at initial diagnosis, TAP should be suspected and diagnosed as early as possible, and appropriate treatment for tumors should be administered before the physical manifestations of TAP become irreversible.

In conclusion, Parkinsonism is rarely an initial manifestation of PCNSL. In contrast, VP is common among older adults. Due to its rarity, it is often challenging to distinguish between TAP and VP at initial consultation. TAP should be suspected if the clinical symptoms of parkinsonism progress rapidly, and thus, physicians should consider repeat MR examination under close observation in these cases.

Acknowledgements

Not applicable.

Availability of data and materials

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Authors' contributions

RO and KS drafted the manuscript and wrote the final paper. YN and JY made substantial contributions to conception and design. YN and JY drafted parts of the manuscript, revised the content critically and provided constructive feedback. KS and YN performed the surgery. RO and KS analyzed all images. KS and JY confirmed the authenticity of all the raw data. All authors read and approved the final manuscript.

Ethics approval and consent to participate

Not applicable.

Patient consent for publication

Oral and written informed consent was obtained from the patient for the publication of the case details and any associated images.

Competing interests

The authors declare that they have no competing interests.

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Spandidos Publications style
Okano R, Suzuki K, Nakano Y and Yamamoto J: Primary central nervous system lymphoma presenting with Parkinsonism as an initial manifestation: A case report and literature review. Mol Clin Oncol 14: 95, 2021
APA
Okano, R., Suzuki, K., Nakano, Y., & Yamamoto, J. (2021). Primary central nervous system lymphoma presenting with Parkinsonism as an initial manifestation: A case report and literature review. Molecular and Clinical Oncology, 14, 95. https://doi.org/10.3892/mco.2021.2257
MLA
Okano, R., Suzuki, K., Nakano, Y., Yamamoto, J."Primary central nervous system lymphoma presenting with Parkinsonism as an initial manifestation: A case report and literature review". Molecular and Clinical Oncology 14.5 (2021): 95.
Chicago
Okano, R., Suzuki, K., Nakano, Y., Yamamoto, J."Primary central nervous system lymphoma presenting with Parkinsonism as an initial manifestation: A case report and literature review". Molecular and Clinical Oncology 14, no. 5 (2021): 95. https://doi.org/10.3892/mco.2021.2257