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Nephrotic syndrome and mesenteric infarction
secondary to metastatic mesothelioma
CKTFarmer, D J A Goldsmith
Abstract
Malignant mesothelioma can present in-
sidiously with progressive breathlessness
and chest pain. Paraneoplastic, or non-
chest related, presentations are very rare.
The case of an elderly man with occupa-
tional exposure to asbestos who presented
with nephrotic syndrome due to minimal
change nephropathy in the context of
advanced pleural mesothelial malignancy
is reported.
(Postgrad Med J 2001;77:333–334)
Keywords: malignant mesothelioma; minimal change
nephropathy; nephrotic syndrome
Case report
In la te 1997 a 66 year old retired man was
admitted with a short but rapidly progressive
history of peripheral oedema, exertional breath-
lessness, and extreme fatigue. He was hypoten-
sive (90/60 mm Hg), breathless at rest, and
pale, with decreased left chest wall movements,
bilateral basal inspiratory crepitations, and
anasarca. Investiga tions sho wed proteinuria of
30.0 g/l, plasma albumin of 15 g/l, haemoglobin
112 g/l, erythrocyte sedimentation rate 110
mm/hour, and plasma creatinine 115 µmol/l.
He had been a telephone engineer until
1994, and undoubtedly exposed to asbestos.
He had a strong family history of raised choles-
terol, myocardial infarction, and thyroid dis-
ease. He had been perfectly well until 1994
when he was admitted with a myocardial
infarction for which he was given streptokinase.
He remained hypotensive and required ino-
tropic support for 18 days during which time
he developed haemoptysis, left lung pneumo-
nia, and a right tension pneumothorax. Eventu-
ally he left hospital, but remained unwell with
intermittent left heart failure and angina. An
angiotensin converting enzyme inhibitor,
antianginals, and diuretics were started. A
small left sided pleural reaction/eVusion re-
mained visible on the chest radiograph.
In early 1997 he was referred for a
respiratory opinion with a recent history of two
upper respiratory tract infections and progres-
sive breathlessness. The chest radiograph
showed extensive left pleural and parenchymal
shadowing. Sputum cytology was normal. Pul-
monary function testing showed a mild ob-
structive pattern. Fibreoptic bronchoscopy was
normal. High resolution computed tomogra-
phy of the chest was thought to show pleural
pathology and basal interstitial pulmonary
fibrosis (fig 1). Rheumatoid factor was noted to
be positive (1/320 titre). A trial of prednisolone
40 mg was started but with no benefit. He
became unwell with nephrotic syndrome and
was referred for a renal opinion.
He was given intravenous diuretic and 20%
albumin. A chest radiograph showed extensive
pleural reaction/eVusion on the left, and a
smaller eVusion on the right. Renal ultrasound
showed two normal sized non-obstructed
kidneys with preserved corticomedullary dif-
ferentiation. Echocardiography showed a di-
lated left ventricle with globally poorly function
and with apical thrombus. Investigations for
autoimmune and plasma cell disease were
negative. Blood clotting studies were normal.
Fibrinogen concentrations were raised (8.6 g/l;
normal range 2.0–4.0 g/l). Renal biopsy
showed 10 glomeruli that were normal on light
microscopy. Sirius red staining for amyloid was
negative. Immunofluorescence was negative.
Electron microscopy showed extensive foot
process fusion and no evidence of immune
deposits. A diagnosis of nephrotic syndrome
secondary to minimal change nephropathy
(MCN) was made and he was started on oral
40 mg prednisolone daily, 150 mg ranitidine
twice a day, and intravenous hepar in then oral
warfarin (48 hours after the renal biopsy)
because of the echocardiographic findings of
apical thrombus and the significant thrombotic
tendency seen in severe nephrotic syndrome.
Shortly afterwards he had a small haemate-
mesis with mild epigastric tenderness. Endo-
scopy show ed mild distal oesophagitis and old
gastritis but no bleeding point and no duodenal
pathology. Anticoagulation was immediately
reversed. However, he developed acute small
bow el obstruction as shown by increasing
abdominal pain, left iliac fossa tenderness,
abdominal distension, faeculent vomiting, ob-
structive bow el sounds, and dilated small bowel
loops on abdominal radiography. Serum amy-
lase was normal. The haemoglobin concentra-
tion was stable at this stage. He rapidly became
more breathless and h ypotensive, required elec-
tive controlled intubation and mechanical venti-
lation with inotropic circulatory support, and
died on the intensive care unit six hours later .
At postmortem examination the left pleural
space was obliterated by old adhesions and by
Figure 1 High resolution computed tomography of the
chest.
Postgrad Med J 2001;77:333–334 333
Renal Unit, 4th Floor
Thomas Guy House,
Guy’s Hospital,
London SE1 9RT, UK
CKTFarmer
D J A Goldsmith
Correspondence to:
Dr Goldsmith
David.goldsmith@gstt.sthames.
nhs.uk
Submitted 5 June 2000
Accepted 2 October 2000
www.postgradmedj.com
yellow tumour plaques. The left upper lobe was
largely replaced by tumour. The right lung was
free from tumour but congested. There were
two tumour nodules on the inner surface of the
pericardial sac. There was old fibrosis of the
septal and anterior left ventricular wall, but no
changes of recent myocardial infarction and no
intracardiac thrombus. Coronary arteries
showed diVuse severe calcific atheroma, but no
recent plaque rupture or thrombosis. The aorta
also showed atheromatous changes. The ab-
dominal cavity contained 400 ml of blood
stained ascites. The 90 cm of distal duodenum
and proximal jejunum were infarcted, and con-
tained fresh blood. There wasa1cmhaemor-
rhagic tumour nodule in the lateral wall of the
anterior horn of the right lateral ventricle.
Histology of the pleural, pericardial, and
brain nodules showed sheets of tumour cells
(fig 2), with areas of spindle cells and also epi-
thelioid cells. The spindle cells stained strongly
positively for cytokeratin. The conclusion was
that the tumour was a sarcomatous pattern
mesothelioma.
Discussion
Renal lesions in the context of malignancy
(both carcinoma and lymphoma) have been
recognised for more than three decades. These
are typically of membranous nephropathy, and
more rarely, renal amyloidosis, mesangiocapil-
lary glomerulonephritis, renal vasculitis (an-
tineutrophil cytoplasmic antibody positive and
negative), and MCN.
1
The development of
membranous nephropathy, an immune com-
plex mediated form of glomerular injury, in
patients with malignant tumours has been pro-
posed to be the result of deposition of tumour
antigens and antitumour antibodies in the
glomerulus, or to changes wrought by the
malignancy on the immune system engender-
ing greater susceptibility to such immune com-
plex mediated damage from exogenous or
endogenous antigens. While initial reports sug-
gested as much as 10% of membranous neph-
ropathy was secondary to underlying malig-
nancy, this figure is now thought to be a
significant overestimate of the true frequency.
The best known association between malig-
nancy and MCN is that seen in Hodgkin’s
lymphoma.
2
Possible mechanisms to explain
the association include the elaboration of
vascular permeability factor, cytokines, and
chemokines by tumour cells.
Renal lesions in the context of pleural
mesothelioma are extremely unusual—only
five cases of nephrotic syndrome with mesothe-
lioma exist in the literature
3–7
of which only one
showed MCN and mesothelioma.
4
In that case,
treatment of nephrotic syndrome with pred-
nisolone and cyclophosphamide was ineVec-
tive, while subsequent treatment of the pleural
tumour with doxorubicin and dacarbazine was
ineVective against the tumour but improved
the patient’s nephrotic syndrome.
Metastatic mesothelioma is exceptionally
unusual, but has been reported.
8–10
The prior
lung problems in this patient (pulmonary
oedema, pneumonia, and contralateral pneu-
mothorax) hindered the diagnosis until late in
the course of the illness.
The cause of the infarction of the duodenum
and jejunum was not clear. The options include
embolisation from the heart (antemortem
echocardiography had shown extensive left
ventricular apical thrombus but none was seen
postmortem), arterial thrombosis (rare but well
documented in nephrotic syndrome
11
), athero-
embolism from an ulcerated aortic plaque,
12
or
hypotensive/watershed infarction on the back-
ground of aortic/mesenteric atheroma. The
prothrombotic tendency in severe nephrotic
syndrome is well described
13
and anticoagula-
tion recommended.
In summary we present a case of MCN in
association with metastatic pleurally based
sarcomatous mesothelioma.
The authors would like to thank Dr Kirkham, Consultant
Histopathologist, Royal Sussex County Hospital, Brighton,
Sussex.
1 Ahmed M, Solangi K, Abbi R, et al. Nephrotic syndrome,
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2 Cavalli F. Rare syndromes in Hodgkin’s disease [see
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3 Paliszewska L, Hebanowski M, Szelezynski K. Dwa
przypadki zespolu nerczycowego w przebiegu chorob
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4 Schroeter NJ, Rushing DA, Parker JP, et al. Minimal-change
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10 Kawai A, Nagasaka Y, Muraki M, et al. Brain metastasis in
malignant pleural mesothelioma. Intern Med 1997;36:591–4.
11 Khatri VP, Fisher JB, Granson MA. Spontaneous arterial
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12 Carnevale NJ, Delany HM. Cholesterol embolization to the
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69:125–30.
Figure 2 Histology showing sheets of tumour cells with areas of spindle cells and also
epithelioid cells.
334 Farmer, Goldsmith
www.postgradmedj.com