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PubMed1994

[Predictive signs of cancers in dermatomyositis. Study of 29 cases].

Dermatomyositis (DM) is characterized by an inflammatory myopathy and typical cutaneous lesions. In a retrospective study, 29 adult cases without overlap syndrome were reviewed. Our aim was to define predictive signs of cancer. Ten (four women, six men) of the 29 patients (35%) had DM associated with malignancy. The diagnosis of cancer was made concomitantly in six cases, more than year after (two cases), more than year prior to (two cases) the occurrence of DM. No extensive diagnosis procedures were necessary for identifying the tumors. A paraneoplasic evolution was certain for any patient, probable for six, improbable for fourth. For the group with malignancy: age was higher (P = 0.01), albumin lower (P = 0.04), C reactive protein higher (P = 0.0061). These parameters seem to have predictive value for the presence of malignancy.

Adult↗
PubMed1999

Dermatomyositis and peritoneal papillary serous carcinoma.

We describe an unusual case of peritoneal papillary serous carcinoma (PPSC) arising in a female patient with dermatomyositis (DM). Despite periodic extensive searches for an underlying malignancy, no malignancy had been detected in this patient during the first 2.5 years after the diagnosis of DM. It was only when the patient presented with pleural effusion and ascites that the underlying intra-abdominal malignancy was detected by laparoscopy. Treatment with four cycles of pre-operative chemotherapy (taxol and cisplatin) resulted in tumor regression with amelioration in the muscular manifestation of the DM, but without parallelic amelioration in the skin manifestations of the DM. Explorative laparotomy confirmed the presence of papillary serous carcinoma in the omentum, surface of the left ovary and the retroperitoneal lymph nodes, and established the diagnosis of PPSC. Following two cycles of postoperative chemotherapy, the patient is alive with no evidence of internal malignancy. However, although muscle strength and enzymes have remained normal, no effect on the skin manifestation of DM has been observed. This case illustrates that, alongside the more frequently occurring ovarian carcinoma, PPSC should also be considered in the differential diagnosis of the underlying malignancy that may occur in the female patient with DM.

Aged↗
PubMed1990

Dermatomyositis and polymyositis in childhood.

Personal experience of 30 years work with 40-50 cases of dermatomyositis and polymyositis in childhood is reviewed, stressing the clinical findings of skin eruptions on the knuckles, elbows and knees (except in the 10 per cent of patients without any skin involvement), weakness of particularly proximal muscles and tightness of tendons. Special diagnostic procedures are reviewed as well as treatment. The basic treatment is corticosteroids, which must be started at a high dose and as soon as possible be given at intervals of 48 hours to diminish the side-effects. In many, though not all, patients the treatment must be continued for years. The parents should always know that extended treatment may be necessary. Physiotherapy should be started cautiously and be slowly increased, close co-operation between the physician and the physiotherapist being necessary. If the patient does not respond to corticosteroids, antimetabolites may be added. Most patients survive with no or only minor sequelae.

Child↗
PubMed2004

Serial chest CT findings in interstitial lung disease associated with polymyositis-dermatomyositis.

OBJECTIVE: A retrospective study was carried out in two institutions to determine serial changes in the pattern, distribution, and extent of interstitial lung disease (ILD) associated with polymyositis (PM)-dermatomyositis (DM) using HRCT. SUBJECTS AND METHODS: Twenty patients with PM-DM and clinical suspicion of ILD who underwent at least two serial HRCT examinations were retrospectively evaluated by two readers. Patients were classified according to the dominant CT pattern which was correlated with clinical evolution and underlying histology when available (n=6). RESULTS: Patients were classified into four groups according to the dominant pattern: ground-glass attenuation and reticulation (group 1, n=9); honeycombing (group 2, n=4); airspace consolidation (group 3, n=4), and normal or almost normal lung (group 4, n=3). Under medical treatment, serial HRCT showed that the extent of areas of ground-glass opacities (group 1) decreased in five patients, stabilized in two, and increased in two. Pathologic findings demonstrated usual interstitial pneumonia (UIP) in two cases and unspecified interstitial pneumonia in one. In group 2, extent of honeycombing increased in three cases and stabilized in one. In group 3, dramatic resolution of airspace consolidation occurred in three cases. Clinical deterioration with extensive consolidation at CT and diffuse alveolar damage (DAD) at histology occurred in one patient of each of the three previous groups. Lesions stayed invisible or progressed slightly in the fourth group. CONCLUSION: In ILD associated with PM-DM, clinical deterioration and DAD in the follow-up can be observed whatever the HRCT pattern. However, unfavorable evolution is constant when honeycombing is present at the initial CT.

Adult↗
PubMed2005

[Coexistence of dermatomyositis and macrophagic myofasciitis].

INTRODUCTION: An inflammatory myopathy, characterised by joint and muscle pain, chronic asthenia, with infiltration of peri-fascicular epimysium, perimysium and endomysium by cells of the macrophagic line, macrophagic myofasciitis is often associated with other, generally auto-immune, affections. However, the coexistence with another inflammatory myopathy is relatively rare. OBSERVATION: A 29 year-old woman presented with 2 distinct inflammatory myopathies, a macrophagic myofasciitis and a dermatomyositis, which had appeared a few years after. DISCUSSION: In the rare cases in which 2 inflammatory myopathies are combined, the precise relationship between them is unknown, an individual susceptibility to developing muscle diseases is suggested.

Adult↗
PubMed2006

[Pulmonary involvement in polymyositis and dermatomyositis].

Polymyositis is characterised by an inflammatory reaction in skeletal muscle with a variable degree of muscular weakness and associated with skin lesions in the case of dermatomyositis. Involvement of the muscles of deglutition and the diaphragm may lead to inhalation pneumonia and acute or chronic respiratory failure, often hypercapnic. The other respiratory manifestations are diffuse interstitial pneumonitis (DIP), usually non-specific, and very occasionally pulmonary arterial hypertension. The development of DIP during polymyositis is a grave prognostic factor, respiratory involvement being one of the main causes of morbidity and mortality. The onset of DIP is acute in between 30 and 47% of cases. Anti-synthetase antibodies (particularly anti-JO-1) are positive in about 75% of cases. Treatment is usually with a combination of immunosuppressants and corticosteroids without any immunosuppressants therapy having shown a superiority.

Adrenal Cortex Hormones↗
PubMed2003

[Can we predict the risk of malignancy associated with dermatomyositis?].

Dermatomyositis (DM) and polymyositis (PM) are idiopathic inflammatory muscle diseases which remain a therapeutic challenge. The association between DM and malignancy is relatively well established while this relationship is weaker with PM. The clinical management and research for an occult malignancy as well as the follow-up of patients with DM or PM is a matter of debate. Herein we report a case of DM who, despite an extensive clinical, radiological and biological work-up developed an occult ovarian cancer 12 months after the initial diagnosis. This case report was used as support to review the actual expert recommendations for the search of an occult malignancy in presence of DM or PM.

Adenocarcinoma↗
PubMed2000

A causal role for parvovirus B19 infection in adult dermatomyositis and other autoimmune syndromes.

BACKGROUND: Infection with parvovirus B19 (B19) has been associated with connective tissue disease (CTD) stigmata, namely, a systemic lupus erythematosus (SLE)-like illness, seronegative polyarthritis resembling rheumatoid arthritis, and vasculitis. The dermatopathology and pathogenetic basis of such B19-associated CTD-like syndromes have not been elucidated. OBJECTIVE: We attempted to document persistence of the B19 genome in skin lesions of 7 patients with CTD-like symptomatology following B19 infection and to correlate systemic manifestations to dermatopathological findings. METHOD: In 7 prospectively encountered patients in whom history, clinical signs and/or serology supported a diagnosis of CTD in the setting of B19 infection, dermatopathological and clinical features were correlated. Parvovirus B19 viral genome was sought in skin tissue using the polymerase chain reaction (PCR). RESULTS: Two patients had clinical features diagnostic of myopathic dermatomyositis (DM), 1 of whom is still symptomatic 1.5 years after the onset of her illness, and the other has had typical clinical features of DM for a duration of 3.5 years. A 3rd patient with SLE remains symptomatic 4 years after the onset of her illness. A 4th patient has persistent seronegative symmetrical polyarthritis of 6 years' duration and cutaneous lesions of granuloma annulare (GA). The 5th patient has a 1.5-year history of debilitating polyarthritis and cutaneous lesions with overlap features of DM and subacute cutaneous LE (SCLE). The 6th patient has had a persistent folliculocentric necrotizing vasculitis for 3 years. The 7th patient has a 1-year history of microscopic polyarteritis nodosa (PAN) with cutaneous vasculitis and persistent active renal disease. In 4 patients, exposure to children with fifth disease immediately preceded the onset of their CTD. Parvovirus B19 infection was documented serologically in 6 patients with antibodies of IgG subclass in 6 and of IgM subclass in 1. Four of 6 patients questioned had a history of atopy. Skin biopsies from patients with clinical features of SLE or DM demonstrated an interface dermatitis with dermal mucinosis. A necrotizing vasculitis with epithelial pustulation was seen in 2 patients. Interstitial GA-like infiltrates were seen in 5 cases. Immunofluorescent (IF) testing revealed a positive lupus band test (LBT) and epidermal nuclear and vascular staining for IgG and C5b-9 in the SLE patient. One DM patient had a negative LBT in concert with C5b-9 deposition along the dermoepidermal junction (DEJ) and within blood vessels while the other showed endomysial vascular Cs5b-9 deposition. In all patients, skin biopsy material contained B19 genome, which was absent in the serum of 4 patients analyzed. Symptomatic relief followed immunosuppressive and immunomodulatory therapy with agents including prednisone, cyclophosphamide, hydroxychloroquine, non-steroidal anti-inflammatory drugs and etanercept, but no patient has had complete symptom resolution. CONCLUSIONS: Persistent B19 infection may be of pathogenetic importance in certain prototypic CTD syndromes, to which underlying immune dysregulation associated with a blunted IgM response to viral antigen may predispose. Anti-viral therapy might be worthy of consideration since traditional immunosuppressive therapy was unsuccessful in our cases.

Adult↗
PubMed2001

Dermatomyositis and sarcoid-like reaction associated with multiple myeloma treated effectively by high-dose chemotherapy and autologous peripheral blood stem cell transplantation.

We report the case of a 46-year-old male who developed dermatomyositis and a sarcoid-like reaction in association with testicular relapse of multiple myeloma. The myositis progressed despite chemotherapy directed at the underlying malignant disorder and immunosuppressive treatment. There was, however, a dramatic and sustained response to high-dose chemotherapy and autologous peripheral blood stem cell transplantation which resulted in resolution of the myopathy and partial resolution of the sarcoid-like reaction. This case report highlights the potential of autologous stem cell transplantation as treatment for para-neoplastic disorders associated with haematological malignancies.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1991

Renal haemodynamics of cyclosporin A nephrotoxicity in children with juvenile dermatomyositis.

1. Renal haemodynamics were monitored over an average period of 19 months in 17 children being treated with cyclosporin A. Sixteen had juvenile dermatomyositis and one had chronic polyneuropathy. The dose of cyclosporin A ranged from 2.3 to 8.3 mg day-1 kg-1 (median 4.1 mg day-1 kg-1). 2. Glomerular filtration rate (expressed in terms of extracellular fluid volume), renal blood flow (expressed as a fraction of cardiac output) and filtration fraction were measured by using 99mTc-labelled diethylenetriamine-penta-acetate. They were compared with the dosage and trough blood levels of cyclosporin A, and, in 15 patients receiving prednisolone in addition to cyclosporin A, with steroid dosage. 3. All 17 children had a renogram performed 6 months after starting cyclosporin A treatment. Nine of them also had a renogram before starting cyclosporin A treatment (baseline study), while 13, in addition to their renogram 6 months after starting cyclosporin A treatment, also had at least one further renogram. 4. Glomerular filtration rate/extracellular fluid volume fell slightly but significantly from 0.009 (SD 0.0013) before starting cyclosporin A treatment to 0.0085 (0.002) min-1 (P less than 0.01) 6 months after cyclosporin A treatment in the nine children who underwent a baseline study. This was accompanied by a significant (P less than 0.001) fall in filtration fraction from 0.108 (0.015) to 0.088 (0.014). However, renal blood flow/cardiac output showed no change. 5. In the 13 children studied beyond 6 months after starting cyclosporin A treatment, there was no further significant overall change in any renal haemodynamic variable.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1998

Dermatomyositis presenting as plaque-like mucinosis.

We describe two women, aged 65 and 37 years, who presented with mucinous plaques as the initial skin signs of dermatomyositis. Other cutaneous manifestations were lacking, but typical myositis appeared later in the course of the disease.

Adult↗
PubMed1999

Dermatomyositis with the features of inclusion body myositis associated with carcinoma of the bladder.

Inclusion body myositis (IBM) is a unique category of inflammatory myopathy. It is characterized histologically by the presence of muscle fibres with rimmed vacuoles and abnormal intracellular accumulations of proteins. We report here a 62-year-old patient with bladder carcinoma, where the signs of IBM overlapped with clinical features of dermatomyositis (DM). A combination of cutaneous changes typical for DM with histological and other features of IBM is exceedingly rare, and has not been previously addressed in dermatological literature. To the best of our knowledge this is also the first description of the association of DM/IBM with internal malignancy.

Carcinoma, Transitional Cell↗
PubMed2001

Predicting factors of malignancy in dermatomyositis and polymyositis: a case-control study.

BACKGROUND: An association between dermatomyositis (DM)/polymyositis (PM) and malignancies has been widely reported in the literature. The validity of extensive evaluation for malignancies in those patients has also been questioned for decades. Only limited papers regarding the signs of malignancy and the prognostic factors in DM/PM have been reported. OBJECTIVES: To define the potential risk factors of concomitant neoplastic diseases in patients diagnosed as having DM/PM. METHODS: From 1 April 1983 to 30 June 1999, 147 patients were diagnosed as having probable or definite DM/PM at the Veterans General Hospital, Taichung, Taiwan. We excluded four patients who had preceding neoplastic diseases diagnosed before DM/PM, then retrospectively reviewed the data of the remaining 143 patients and subgrouped the cases as four main types: primary idiopathic DM, primary idiopathic PM, juvenile DM/PM and amyopathic DM (ADM). We next performed univariate analysis using logistic regression to evaluate the possible predictive factors for malignancies, such as mean age at onset, gender, manifestations at onset, association with other connective tissue diseases, initial skin presentations, complications and laboratory data. Then we chose the significant factors for multivariate analysis by logistic regression, to determine the independent risk factors of malignancies in DM/PM patients. RESULTS: Among the 143 patients, DM was the most common type (64%), followed by ADM (14%), juvenile DM/PM (13%) and PM (10%). The mean age at onset overall was 42.4 years. Other connective tissue diseases were present in 22% of all patients, especially PM (50%) and juvenile DM/PM patients (28%). Internal malignancies were present in 13% of patients, and most were associated with DM. Nasopharyngeal carcinomas (NPCs) were the most common tumours. Patients with primary idiopathic DM, with an older age at onset, higher serum creatine phosphokinase levels and male gender, had more chance of developing concomitant malignancies. Those associated with complications, especially interstitial lung diseases, had a lower risk of associated neoplasia. In multivariate analysis, an older age at onset (odds ratio 9.10) and male gender (odds ratio 4.06) were associated with greater risk of developing malignancies. CONCLUSIONS: The two independent predictive factors for malignancy (P < 0.05) in patients with DM/PM were an older age at onset (> 45 years) and male gender. The primary idiopathic DM group was shown to have higher risk of developing internal malignancies, especially NPC. However, this was not identified as an independent predictive factor for concomitant neoplastic diseases in multivariate analysis. In addition, patients who had the complication of interstitial lung disease had a significantly lower frequency of malignancies (P < 0.001).

Adult↗
PubMed2002

Epstein-Barr virus-associated T-cell lymphoma: a case of eyelid swelling and intramuscular infiltration mimicking dermatomyositis.

Association with Epstein-Barr virus (EBV) infection has been noted in various types of cutaneous lymphoproliferative disorders. We report a 57-year-old Japanese woman with T-cell lymphoma mimicking dermatomyositis that was associated with chronic active EBV infection. She presented with low-grade fever, bilateral erythematous swellings on the eyelids, and necrotic papules on the face. Serum creatine kinase levels were elevated and a diffuse reticular shadow was detected in both lung fields. The infiltrate of atypical lymphocytes found in skin and muscle, which contained EBV-encoded small nuclear RNA-1 and EBV, was also detected in the CD4+ peripheral blood cells. Treatment with prednisolone resolved her lesions with no relapse for 3 years, after which there was a recurrence in her left lung. Combination chemotherapy was not effective against the lung lesion and she died with multiple organ failure 2 months after the recurrence.

Dermatomyositis↗
PubMed2003

Class I MHC detection as a diagnostic tool in noninformative muscle biopsies of patients suffering from dermatomyositis (DM).

This study is to further confirm the diagnostic value of class I MHC detection in muscle biopsies of adult patients presenting with clinical features of dermatomyositis (DM) and to address its diagnostic value in the case of nonspecific biopsies. A retrospective study was performed on muscle biopsies in 22 patients presenting with clinical features of DM. Immunohistochemical detection of class I MHC was performed in all cases. On pathological features two groups of patients were recorded: group I (14 patients) with typical features of DM and group II (eight patients) with almost normal muscle biopsies (no inflammatory exudates, no perifascicular atrophy). Abnormal sarcolemmal class I MHC expression was recorded in all cases. In all muscle biopsies of group I patients, class I MHC expression was observed in almost all fibres but was stronger in perifascicular areas (eight patients) or was restricted to perifascicular atrophic fibres (six patients). In all muscle biopsies of group II patients, only some perifascicular fibres expressed class I MHC. According to Bohan and Peter criteria, patients were classified as definite DM (nine group I and three group II patients), probable DM (five group I and two group II patients) and possible DM (three group II patients). Abnormal perifascicular class I MHC expression is of diagnostic value in patients presenting with clinical features of DM especially when muscle biopsy fails to show typical features such as inflammatory infiltrates and/or perifascicular atrophy.

Adult↗
PubMedDate not supplied

Angiokeratomas in juvenile dermatomyositis.

Juvenile dermatomyositis (JDM) is an uncommon disease that features muscle weakness, a characteristic rash, and vascular changes in skin, muscle, and other organs. We report a patient with JDM who developed multiple angiokeratomas, one of which was calcified. Electron microscopy of an angiokeratoma revealed altered connective tissue consistent with abnormal collagen. To our knowledge, angiokeratomas occurring in association with JDM have not been previously reported. Abnormal collagen distinguishes the angiokeratomas in our patient from those seen in other conditions. We propose that the angiokeratomas resulted from a progressive compensatory response to the obliterative angiopathy of JDM.

Angiokeratoma↗
PubMedDate not supplied

Papules and pustules of the elbows and knees: an uncommon clinical sign of dermatomyositis in oriental children.

We report two children with dermatomyositis in whom the initial manifestation was a papular eruption on the extensor surfaces of the elbows and knees. In each there was a follicular component to the eruption and one child had pustular lesions. The extensor eruption predated the onset of muscle weakness by 1 year in the first child and by 2 years in the second. Both children had Vietnamese parents. There is some evidence in the literature that Oriental patients may be predisposed to this type of eruption.

Child↗