Haematologica, Vol 92, Issue 6, e72-e73 doi:10.3324/haematol.11291
Copyright © 2007 by Ferrata Storti Foundation
Intracerebral hogkins lymphoma in a patient with human immunodeficiency virus
A. García-Noblejas1,
S. Nieto2,
R. Liberal3,
J. Cannata1,
J.L. Steegmann1,
J.M. Fernández-Rañada1,
R. Arranz1
1 Department of Hematology, La Princesa Hospital, Spain
2 Department of Pathology, La Princesa Hospital, Spain
3 Department of Neurosurgery, La Princesa Hospital, Spain

ABSTRACT
Central nervous system (CNS) involvement by Hodgkin Lymphoma
(HL) is rarely reported. Retrospective and prospective cohort
studies suggest an incidence of 0.2–0.5%, mostly in relapsed
disease. In spite of a 3 to 18-fold increased risk of HL in
patients with human immunodeficiency virus (HIV), only two cases
have been reported so far. In this paper, we now report a third
case of HIV patient with HL who progressed with isolated CNS
infiltration after a standard chemotherapy induced clinical
remission. In 1991, when the first case of intracerebral involvement
in HIV+ HL was reported an increase of this type of cases would
have been expected, but only one more case has been reported
since then.

Case Report
A 41 year old HIV positive male with B symptoms, starting one
month before, was admitted for surgery after an intestinal perforation
due to ulceration of the intestinal wall. In the pathologic
study the ulcer was infiltrated by atypical lymphocytes, frequent
eosinophils and Reed-Stenberg cells. By immunohistochemistry,
tumour cells were positive for CD30, CD 15 and EBV and, negative
for CD20, CD79a. Classic HL EVB+ with depletion lymphoid areas
was diagnosed. A whole body computed tomography (CT) scan showed
multiple and small (<1 cm) supra and infradiaphragmatic adenopathies
and bone marrow biopsy was positive. The disease was classified
as stage IV-B and IPS (International Prognosis Score) of 5.
HIV infection was detected four years before. CD4+ T lymphocyte cell count remained >200/µL (median 363/µL) and treatment with Efavirenz, Emtricitabine and Tenofovir were initiated when HL was diagnosed. Chemotherapy with ABVD regimen was administered with complete resolution of all symptoms and disappearance of previously involved areas after the first four cycles of therapy. Just before the fifth cycle of chemotherapy, the patient presented acute urinary retention which required the insertion of an urethral catheter and loss of anal sphincter control. In addition, he related proximal legs weakness with paresthesias, headache and photophobia in the last week. The patient was hospitalised with the clinical suspect of spinal cord compression by infiltration versus infectious myelitis. Magnetic resonance (MR) studies showed peripheral meningeal enhancement, nodular areas in lower spinal cord and conus medullaris, supratentorial nodular lesions with a ring pattern and contrast linear enhancement around V and left II cranial nerve. Spinal fluid showed 18 WBC/per mm3, increased proteins with decreased glucose, normal adenosine deaminase (ADA) levels and 95% lymphocytes with mature CD3+ phenotype. Screening for infections included bacterial and fungal cultures, cryptococcal latex agglutination, PCR to detect mycobacterium tuberculosis, toxoplasma gondii and neurotrophic virus (HSV, HZV HV6, CMV, EBV). All tests except for EBV, were negative. A stereotaxic guided biopsy of the lesions yielded negative results so a new stereotaxic guided open biopsy was indicated. Pathologic examination revealed CNS tissue infiltrated by HL EBV+. (Figure 1–4). Five lumbar punctures with intrathecal chemotherapy were performed in a period of six weeks. In the first three punctures methotrexate, hydrocortisone and cytarabine were administered, and in the others liposomal cytarabine was used. In spite of improvement of the cauda equine syndrome, the patient developed anisocoria, left blindness by retrobulbar neuritis and neural pain in the left upper member. A new MRI showed progression of the supratentorial lesions. Systemic chemotherapy with high dose methotrexate and citarabine was started without success after a short initial period of symptoms relief. The patient died 8 months from initial diagnoses and 3 months after CNS involvement symptoms appeared with progressive worsening of neurologic symptoms (tonic-clonic seizures, coma).

Discussion
HL is the most common non AIDS defining cancer occurring in
patients with HIV infection who have a 3 to 18 fold increased
risk of disease when compared to non HIV patients.
1,2 These
patients also have a more advanced stage disease at presentation
with up to 60% extranodal involvement,
2 clinical features associated
with an increased risk of refractory or progressive disease.
Although CNS involvement is infrequent in immunocompetent patients
with advanced HL (0.2–0.5%), one would expect more than
two case reports in the HIV positive population since 1991.
3,4 Furthermore, diagnosis of CNS involvement in HL may not be easy.
In the cases reported, as in ours, spinal fluid studies were
not explanatory, and diagnosis required brain biopsies or was
an autopsy finding.
5,6,7,8 Perhaps, the high risk of infection
in these patients (including CNS), the use of empirical treatment,
difficult diagnosis and poor outcome might have contributed
to fewer cases being reported. A treatment strategy has not
yet been defined in these patients. Results of retrospective
and prospective studies with standard chemotherapy were poor
in the pre highly antirretroviral period, with survivals ranging
from 12 to 18 months due to proggressive disease, an increased
risk of opportunistic infections and treatment related toxicities.
1,2,9,10 Since 2002, significantly better outcomes have been communicated
using a more intensive upfront chemotherapy such as BEACOPP
or Stanford V regimens with G-CSF (granulocyte colony-stimulating
factor) support.
11,12 However, these intensive regimens have
been used combined with HAART (highly active antiretroviral
therapy) and therefore we cannot know what the contribution
of these regimens is on the improved outcome. Surprisingly,
there is scarce information on the results of ABVD (considering
the standard therapy for HL) combined with HAART. Recently,
a retrospective study was published analyzing the results of
the ABVD regimen plus HAART in a series of 62 patients with
advanced stage HIV-relates HL (13) and the results are similar
to those reported by Spina et al
11 and Hartmann
et al.12 Our
patient progressed on a standard chemotherapy treatment, but
the risk of treatment failure due to IPS score was high, regardless
of the HIV infection. The potential prognostic impact of the
IPS in HIV patients has not been evaluated. We do not know what
the patients evolution would have been if a more intensive
treatment had been used. In summary, it is important to rule
out CNS infiltration in HIV + patients with HL, neurologic symptoms
and not explanatory spinal fluid. In these cases a cerebral
biopsy is necessary because it is the best method available
at the moment to obtain a reliable diagnosis, and the means
to know the real incidence of this event. If a higher incidence
of CNS involvement in HL were to be reported in the future,
another approach could be to administer prophylactic intrathecal
chemotherapy when bone marrow is infiltrated, just as recommended
for aggressive NHL. More studies are, therefore, necessary to
define the optimal monitoring and therapy for these patients.

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