[From "inciting a public incident" to oncologic diagnosis. 49-year-old patient, former construction worker]

Anhand einer Fallbesprechung mit symptomatischer Hyponatriämie im Rahmen eines Syndrom der inadäquaten ADH-Sekretion (SIADH) sollen Aspekte der Diagnose und Therapie der Hyponatriämie besprochen werden. Erläutert werden mögliche Differentialdiagnosen einer Hyponatriämie sowie Ursachen und Diagnosekriterien des SIADH.

[Dermatomyositis and malignant disease--case report]

The case of patients with dermatomyositis and malignant disease has been described. The diagnosis of malignant disease was made after death of the patient, when the malignant undifferentiated cells were found in the ascites. We think that dermatomyosistis was caused by malignant disease. The similar cases of disease were described and published in the literature.

Auto-immune neutropenia occurring in association with malignant melanoma

Neutropenia is frequently observed in the practice of oncology, usually resulting from the use of cytotoxic drugs. Less frequently, neutropenia is due to infiltration of the bone marrow by malignant disease. Both of these usually cause some depletion of all haematopoietic linages. True isolated neutropenia is, in contrast, a less frequent phenomenon. We report a case of auto-immune neutropenia occurring in a patient with metastatic melanoma, and discuss the differential diagnosis and implications for patient management.

Initial evaluation of the patient with lung cancer: symptoms, signs, laboratory tests, and paraneoplastic syndromes

This chapter describes the components of the initial evaluation for a patient either suspected or known to have lung cancer. The components of the initial evaluation are based on the recognized manifestations of localized lung cancer, ie, symptoms referable to the primary tumor, intrathoracic spread of lung cancer, and patterns of metastatic dissemination. Features of the history and physical signs may be useful indicators of the extent of disease. A standardized evaluation, relying on symptoms, signs, and routinely available laboratory tests, can serve as a useful screen for metastatic disease. Also described are the common features of the various paraneoplastic syndromes associated with lung cancer.

Primary Non-Hodgkin's Lymphoma of the Transverse Colon Presenting as Dermatomyositis: Case Presentation and Literature Review

Primary extranodal non-Hodgkin's lymphoma of the transverse colon is a rare presentation of non-Hodgkin's lymphoma or colonic neoplasm. Dermatomyositis is an autoimmune condition of the skin, muscle, and blood vessels that when associated with malignancy is a true paraneoplastic syndrome but is rarely associated with non-Hodgkin's lymphoma. We present a case of primary non-Hodgkin's lymphoma of the transverse colon diagnosed after the presentation of dermatomyositis and review the literature on dermatomyositis and hematologic neoplasm.

Facial pain as first manifestation of lung cancer: a case of lung cancer-related cluster headache and a review of the literature

Facial pain can, on rare occasions, be the presenting symptom of lung cancer. This report describes a patient with non-metastatic lung cancer, which was associated with attacks of debilitating facial pain, presenting as cluster headache. Moreover, 32 reported cases of lung cancer-related facial pain (including the present one) are reviewed, and their clinical features are summarized. The facial pain is almost always unilateral, and is most commonly localized to the ear, the jaws, and the temporal region. The pain is frequently described as severe and aching, and may be continuous or intermittent. Aggravation and expansion of the pain, digital clubbing, increased erythrocyte sedimentation rate, and hypertrophic osteopathy, may contribute to the diagnosis. Referred pain, due to invasion or compression of the vagus nerve, as well as paraneoplastic syndrome secondary to the production of circulating humoral factors by the malignant tumor cells, is implicated in the pathophysiology of facial pain associated with non-metastatic lung cancer. Radiotherapy and tumor resection with vagotomy are very effective in aborting the facial pain. Thus, lung cancer should be included in the differential diagnosis of facial pain that is atypical and/or refractory to treatment.

Paraneoplastic retinopathies and optic neuropathies

Unusual neuro-ophthalmologic symptoms and signs that go unexplained should warrant a thorough investigation for paraneoplastic syndromes. Although these syndromes are rare, these clinical manifestations can herald an unsuspected, underlying malignancy that could be treated early and aggressively. This point underscores the importance of distinguishing and understanding the various, sometimes subtle, presentations of ocular paraneoplastic syndromes. Outlined in this review article are diagnostic features useful in differentiating cancer-associated retinopathy, melanoma-associated retinopathy, and paraneoplastic optic neuropathy. These must also be distinguished from non-cancer-related eye disorders that may clinically resemble cancer-associated retinopathy. The associated antibodies and histopathology of each syndrome are presented to help in the understanding of these autoimmune phenomena. Treatment outcomes from reported cases are summarized, and some potential novel immunotherapies are also discussed.

Idiopathic inflammatory myopathies - myositis

The inflammatory myopathies - myositis - encompass a heterogeneous group of chronic muscle disorders of unknown origin and with varying prognoses. New clinical phenotypes of myositis have been identified since the most widely used classification criteria were proposed in 1975. Based on clinical and histopathological features, inclusion body myositis was identified. Furthermore, the myositis-specific autoantibodies may also identify different clinical phenotypes and serve as prognostic markers. The different classifications and inclusion criteria that have been used in different studies make some epidemiological data uncertain. In order to improve our knowledge of causative factors, as well as of pathogenic mechanisms, there is a need for revision and also for an international acceptance of the classification criteria. During recent years, our knowledge has increased regarding the role of some genetic and environmental factors that could affect susceptibility for developing myositis as well as the prognosis. Whether there is an association between myositis and malignancies has been a subject of controversy for many years and recent epidemiological data have brought some clarification on this issue.

Intestinal pseudoobstruction as a paraneoplastic syndrome in ganglioneuroblastoma

Intestinal pseudoobstruction may be part of a paraneoplastic syndrome. We report a teenage girl with ganglioneuroblastoma who presented with severe constipation. The intestinal pseudoobstruction was presumed to be due to inflammation of the myenteric plexus with destruction of the ganglion cells caused by antineuronal nuclear antibodies (ANNA or Anti-Hu).

Paraneoplastic aqueous flare intensity in patients with esophagogastric carcinoma

A study was conducted of anterior chamber aqueous flare intensity in patients with esophagogastric malignancies. The subjects included 79 patients with upper alimentary tract malignancies (69 scheduled for surgery for the underlining cancer and 10 with metastases), 47 patients with stable ocular sarcoidosis, and 46 age-matched healthy volunteers. A laser cell-flare meter was used to measure flare intensity in patients and healthy controls. The average flare intensity before surgery in patients with cancer was 10.7 +/- 4.9 photon counts/millisecond (pc/ms), which was not statistically significantly different from that in patients with sarcoidosis (11.9 +/- 8.3 pc/ms) but was significantly higher (p < 0.0001) than that in healthy volunteers (4.3 +/- 1.3 pc/ms). The average flare intensity after surgery in patients with carcinomas was 7.5 +/- 2.5 pc/ms, which was significantly (p < 0.0001) lower than the preoperative value. These results suggest that alterations in aqueous flare intensity might represent a paraneoplastic syndrome in patients with esophagogastric carcinoma. If so, measurements of flare intensity may be helpful in the differential diagnosis and evaluation of the disease course of digestive tract cancer.

[Cytokine gene]

The most important aspect of cytokine gene expression in cancer is paraneoplastic syndrome. Paraneoplastic syndrome presents symptoms and signs characteristic of substances that tumors produce, some of which have been revealed to be cytokine. Detection of cytokine gene expression in paraneoplastic syndrome is important not only for diagnosis but for monitoring of anti-cytokine therapy that is expected to be rapidly developed. Proper diagnosis and treatment of paraneoplastic syndrome are also important for improving the QOL of cancer patients. In this context, recent advancement of anti-cytokine monoclonal antibody therapy is expected to aid treatment.

Lymphoma-associated retinopathy

OBJECTIVE

To describe the clinical, electrophysiologic, and serologic findings in a patient with retinal degeneration associated with Hodgkin's lymphoma.

DESIGN

Case report with ancillary immunohistochemical studies.

METHODS

A 24-year-old woman experienced night blindness and fundus abnormalities 1 week after initiation of chemotherapy for Hodgkin's lymphoma. Visual fields and full-field electroretinograms (ERGs) were monitored over a 10-year period. Serum antibodies were studied on Western blot reactions on a solubilized extract of bovine retina. Serum antibodies were also evaluated through indirect immunohistochemistry on rhesus monkey retina.

RESULTS

Visual field and ERG amplitudes, initially abnormal, became reduced further over 10 years. Serum antibodies were identified that reacted to a retinal protein or proteins approximating 65 kd; these antibodies showed immunologic activity against photoreceptors.

CONCLUSIONS

A progressive paraneoplastic retinopathy can occur in association with Hodgkin's lymphoma. The pathogenesis of the retinal degeneration appears to be related to a serum antibody that is reacting to a retinal protein or proteins of approximately 65 kd.

Erythema gyratum repens responding to cetirizine hydrochloride

We report a case of erythema gyratum repens (EGR) in a 59-year-old man with inoperable pancreatic cancer and liver metastasis. The patient had a widespread erythema with concentric marginal band spreading in waves over the trunk and extremities. Numerous vesicles were seen on the margin of the erythema. The skin lesions were severely pruritic, and his peripheral blood showed marked eosinophilia. He also had palmoplantar hyperkeratosis. A biopsy specimen of the erythema disclosed spongiosis, microvesicles filled with eosinophils, infiltration of eosinophils into the epidermis, and a perivascular infiltrate in the dermis. The skin lesions and pruritus cleared quickly after the administration of cetirizine hydrochloride.

[A case of secondary vasculopathy in gastric cancer]

A case is reported of a female patient who was admitted to hospital with diagnosis "hemorrhagic vasculitis". The examination detected gastric cancer. In the city cancer hospital the patient has undergone distal subtotal gastric and duodenal resection. In a few days after the operation skin eruption regressed and was not registered 4 months after surgery.

[Myositis associated with tumors]

AIMS OF THE STUDY

In the 214 polymyositis / dermatomyositis patients in our department we studied the association of polymyositis / dermatomyositis with malignant tumors, the clinical specificities and therapeutic response changes in these cases.

METHODS

Retrospective analysis of the data available since 1985 of the patients treated at the DEOEC 3(rd) Department of Internal Medicine.

RESULTS

From 60 patients with dermatomyositis 9 were diagnosed with neoplasia. In 5 patients simultaneously with the dermatomyositis diagnosis, in the other 4 patients 2-2-3-7 years after the onset of dermatomyositis. In the 154 patients with polymyositis we did not observe development of tumors.

CONCLUSIONS

Neoplasm was observed in 15% of patients with dermatomyositis. The patients presented with serious skin involvement which did not respond well to the dermatomyositis treatment. The patients in whom tumors developed simultaneously with the dermatomyositis required more aggressive treatment. After the therapy of the tumor (surgery, radiotherapy), the skin and muscle symptoms responded better to the immunosuppressive therapy.

Amyloidosis of the tongue as a paraneoplastic marker of plasma cell dyscrasia

OBJECTIVE

Our objective was to study the results of the medical workup in patients with amyloidosis of the oral cavity.

STUDY DESIGN

Patients diagnosed with amyloidosis of the oral cavity during the period from January 1971 to January 2001 at the Departments of Oral and Maxillofacial Surgery/Oral Pathology and Dermatology of the VU University Medical Center, Amsterdam, The Netherlands, were included in this retrospective case study. In total, this series comprised 11 patients, 9 women and 2 men. The patients' medical workup and final diagnoses were traced by means of the medical records.

RESULTS

All but one patient presented with amyloidosis of the tongue, most of them manifesting as macroglossia. In 7 of the 11 included patients a diagnosis of myeloma could be established shortly after their referral to the above-stated departments. Three of the 4 remaining patients appeared to have a monoclonal gammopathy of undetermined significance, and 1 patient was diagnosed with a lymphoplasmacytoid non-Hodgkin lymphoma (immunocytoma).

CONCLUSIONS

Amyloidosis of the oral cavity predominantly involves the tongue, mainly manifesting as macroglossia. Amyloidosis of the tongue is associated with an occult underlying plasma cell dyscrasia, in particular myeloma, and, therefore, should be regarded as a paraneoplastic phenomenon of these hematologic diseases.

Paraneoplastic pemphigus in children and adolescents

BACKGROUND

Paraneoplastic pemphigus (PNP) is an autoimmune mucocutaneous disease associated with specific B-cell lymphoproliferative neoplasms. There has been an increasing number of individual reports in the childhood and adolescent population.

OBJECTIVES

To examine the clinical and immunopathological features of PNP occurring in children and adolescents.

PATIENTS AND METHODS

We analysed the clinical and immunopathological findings of 14 patients under the age of 18 years with a confirmed diagnosis of PNP. Sera from all patients were analysed by indirect immunofluorescence (IF) and immunoprecipitation for plakin autoantibodies, immunoblotting for detection of plectin autoantibodies, and enzyme-linked immunosorbent assay (ELISA) for the detection of desmoglein (Dsg) 1 and Dsg3 autoantibodies.

RESULTS

Severe oral mucositis was observed in all patients, and lichenoid cutaneous lesions in eight of 14 patients. The average age at presentation was 13 years. Striking findings included: pulmonary destruction leading to bronchiolitis obliterans in 10 patients, association with Castleman's disease in 12 patients, and a fatal outcome in 10 patients. The underlying neoplasm was occult in 10 patients. Histological findings include lichenoid and interface dermatitis with variable intraepithelial acantholysis. Deposition of IgG and C3 in the mouth and skin by direct IF was not found in some cases, but indirect IF detected IgG autoantibodies in all cases. Immunoprecipitation revealed IgG autoantibodies against desmoplakin I, envoplakin and periplakin in all cases, and against desmoplakin II and the 170-kDa antigen in 13 and 10 patients, respectively. Dsg3 and Dsg1 autoantibodies were present in 10 and three patients, respectively, and plectin autoantibodies in 13 patients.

CONCLUSIONS

PNP in children and adolescents is most often a presenting sign of occult Castleman's disease. It presents with severe oral mucositis and cutaneous lichenoid lesions. Serum autoantibodies against plakin proteins were the most constant diagnostic markers. Pulmonary injury appears to account for the very high mortality rates observed.

Les syndromes paranéoplasiques

Paraneoplastic syndromes affecting the nervous system are rare but devastating complications of systemic cancer. The neurologic disorder usually precedes identification of the cancer and can affect any portion of the nervous system including cerebral cortex, cerebellum, spinal cord, peripheral nerves, neuromuscular junction or muscle. A single area or cell type of the nervous system may be affected or the entire neuraxis may be involved. The pathogenesis of paraneoplastic syndromes involving the nervous system is believed to be immune-mediated: the current hypothesis is that antigens usually expressed only in neurons are expressed in a cancer; the immune system recognizes the antigen in the cancer as foreign and mounts an immune response that slows the growth of the tumor but damages the nervous system. The diagnosis of a paraneoplastic syndrome is made either by identifying a small cancer in a patient with a neurologic disorder of unknown etiology or by identifying paraneoplastic autoantibodies in the serum of patients. The treatment involves identification and treatment of the causal cancer and immunosuppression to suppress both the humoral and cellular immune response.