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Query: UMLS:C0020438 (hypercalciuria)
 2,502 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Sarcoidosis is a multisystemic disorder of unknown etiology that most commonly affects adults between 20 and 40 years of age. Patients with sarcoidosis frequently present with bilateral hilar lymphadenopathy and pulmonary infiltration, and often with ocular and skin lesions. The diagnosis is established when clinical and radiographic findings are supported by histologic evidence of non-caseating epithelioid cell granulomas found on tissue biopsy. Diagnosis of sarcoidosis requires exclusion of other causes of granuloma formation. Sarcoidosis is also characterized by distinctive laboratory abnormalities, including hyperglobulinemia, an elevated serum angiotensin converting enzyme level, evidence of depressed cellular immunity manifested by cutaneous anergy and, occasionally, hypercalcemia and hypercalciuria. Glucocorticoids remain the mainstay of therapy when treatment is required, although other anti-inflammatory agents are being used increasingly often.
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PMID:Sarcoidosis: a primary care review. 1049 6

The first episode of nephrolithiasis provides an opportunity to advise patients about measures for preventing future stones. Low fluid intake and excessive intake of protein, salt and oxalate are important modifiable risk factors for kidney stones. Calcium restriction is not useful and may potentiate osteoporosis. Diseases such as hyperparathyroidism, sarcoidosis and renal tubular acidosis should be considered in patients with nephrolithiasis. A 24-hour urine collection with measurement of the important analytes is usually reserved for use in patients with recurrent stone formation. In these patients, the major urinary risk factors include hypercalciuria, hyperoxaluria, hypocitraturia and hyperuricosuria. Effective preventive and treatment measures include thiazide therapy to lower the urinary calcium level, citrate supplementation to increase the urinary citrate level and, sometimes, allopurinol therapy to lower uric acid excretion. Uric acid stones are most often treated with citrate supplementation. Data now support the cost-effectiveness of evaluation and treatment of patients with recurrent stones.
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PMID:Prevention of recurrent nephrolithiasis. 1059 18

Hypercalcemia occurs in most granulomatous disorders. High serum calcium levels are seen in about 10% of patients with sarcoidosis; hypercalciuria is about three times more frequent. Tuberculosis, fungal granulomas, berylliosis, and lymphomas are other conditions that are associated with disorders of calcium metabolism. These abnormalities of calcium metabolism are due to dysregulated production of 1,25-(OH2)D3 (calcitriol) by activated macrophages trapped in pulmonary alveoli and granulomatous inflammation. Undetected hypercalcemia and hypercalciuria can cause nephrocalcinosis, renal stones, and renal failure. Corticosteroids cause prompt reversal of the metabolic defect. Chloroquine, hydroxychloroquine, and ketoconazole are the drugs that should be used if the patient fails to respond or develops dangerous side effects to corticosteroid therapy.
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PMID:Hypercalcemia in granulomatous disorders: a clinical review. 1095 37

Sarcoidosis is a multisystem granulomatous disease of unknown origin. No single biological marker allows definitive diagnosis of sarcoidosis or may accurately predict the disease prognosis. However, some biological markers are helpful tools as diagnostic aids and disease activity markers. At the blood level, lymphopenia with CD4 depletion, elevated levels of serum-angiotensin converting enzyme, lyzozyme, beta 2 microglobulin and disturbed calcium metabolism resulting in hypercalcemia and hypercalciuria can help guide diagnosis. Lymphocytic alveolitis with a high CD4/CD8 ratio in bronchoalveolar lavage fluid is highly suggestive of the disease. A wide range of new biological markers are proposed but their pronostic significance is still controversial. In clinical practice, biological markers may help in monitoring treated patients with sarcoidisis.
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PMID:[Biological manifestations of sarcoidosis]. 1124 Apr 24

Although hypercalcemia has long been recognized as a complication of sarcoidosis, the incidence of hypercalcemia (> or = 11 mg/dl) in Japan is probably less than 5%. 1 alpha, 25(OH)2D3 is the main cause for hypercalcemia in sarcoidosis and overproduced by sarcoid granulomata. Gamma-interferon produced by activated lymphocytes and macrophages plays a major role in the synthesis of 1 alpha, 25(OH)2D3. PTH release is down regulated by high serum concentration of 1 alpha, 25(OH)2D3. Parathyroid hormone related protein may also contribute to the hypercalcemia of sarcoidosis. Treatment of hypercalcemia and hypercalciuria consists of a low calcium diet, adequate hydration, minimization of exposure to sunlight and reducing overproduction of 1 alpha, 25(OH)2D3. Prednisone, 15 to 25 mg/day, is the drug of choice to reduce the overproduction of 1 alpha, 25(OH)2D3.
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PMID:[Hypercalcemia in sarcoidosis]. 1223 75

From an association of nearly 50 years, the author had diagnosed biopsy proven 200 cases of sarcoidosis in Eastern India during the past three decades. It appears that most of these cases follow a distinct clinical pattern and presentation. The clinical course and prognosis differ considerably from that seen in Caucasians, Afro-Americans, South-African Bantus and Japanese. Males, above 40 years, coming largely from atopic and wealthier section of society (a particular business community with physicians, nurses with their families and other professionals). Patients present with constitutional symptoms (97%) like slow unrecognized fever with little malaise (fever-malaise dissociation in 70%), arthralgia (61%) or lone-myalgia (13%), appreciable loss of weight (33%), irritability, anorexia, respiratory symptoms (93%) like cough, dyspnea, etc., hepatomegaly (43.5%), splenomegaly (32.5%), lymphadenopathy (22%) with raised ESR (91%), hypergammaglobulinaemia (41.5%), hypercalciuria (40.5%), raised serum angiotensin converting enzyme (SACE) in 70.5% advance disease in chest radiograph (68%), positive 67-gallium scan and clinico-radiological dissociation in 81% (alarming looking chest radiograph with few physical signs). Course and prognosis also differ from the West. A different treatment schedule, avoiding oral prednisolone, has been found quite effective.
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PMID:Sarcoidosis: a journey through 50 years. 1243 38

We present a case of bone marrow granulomas in a 64-year-old West Indian man who presented with severe leucopenia, anaemia, thrombocytopenia, hepatosplenomegaly, hypercalcaemia, hypercalciuria, elevated angiotensin converting enzyme level and reticulo-nodular shadows on chest X-ray. Bone marrow biopsy revealed numerous non-caseating epithelioid granulomas. A diagnosis of sarcoidosis was made and he was treated with prednisolone 60 mg daily for four weeks and the dose was subsequently reduced to 30 mg daily. Eight months follow-up revealed persistent pancytopenia. Bone marrow granulomas are rare and, when they occur, sarcoidosis is an uncommon aetiology. This case illustrates that severe leucopenia may occur in sarcoidosis and may present therapeutic difficulties.
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PMID:Severe refractory sarcoidosis in a 64-year-old man with persistent leucopenia. 1280 60

Sarcoidosis is a granulomatous disease of unknown origin characterized by the trend to spontaneous remission in the great number of the patients. Some patients require treatment with corticosteroids, which have significant toxicity. The aim of this study was to assess the prognostic role of many different parameters in the patients with sarcoidosis. 162 sarcoidosis patients were introduced to prospective study: 22 patients were treated because of deterioration in lung function or serious ocular disease and 140 were observed without therapy for two years. We assessed the age, sex, symptoms, serum activity of angiotensin converting enzyme (SACE), hypercalcaemia, hypercalciuria, splenomegaly and HRCT findings at the time of diagnosis. We analyzed the frequency of spontaneous remission of sarcoidosis in the untreated patients. We investigated correlation between these parameters and remission. Statistical comparisons were made with chi-square test. We also applied the k nearest neighbor (k-NN) rule and the leave one out method adopted from the statistical pattern recognition theory. From many different parameters only acute symptoms (erythema nodosum, fever, arthritis) and serum activity of ACE might be helpful in predicting prognosis in the patients with stage I of disease. The patient's age at onset less than 36 years, the appearance of erythema nodosum and ground-glass opacities on HRCT scans portend an excellent prognosis in the patients with stage II of disease.
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PMID:[Prognostic value of some clinical, radiological, laboratory and functional parameters in sarcoidosis]. 1288 67

The historical background to the disorder is unfolded. It was originally regarded as a dermatological curiosity, and later sarcoidosis was recognized as a disorder diffusely involving most tissues of the body. Clinical syndromes described include those presenting to the dermatologist, ophthalmologist, chest physician and radiologist, gastroenterologist and neurologist. Tissues commonly involved are lungs, lymph nodes, eyes, skin and bone in that order of frequency. Granulomatous uveitis in the presence of skin lesions should always arouse the suspicion of sarcoidosis; ocular and bone involvement are frequently associated with lupus pernio, whereas lymphadenopathy and splenomegaly are more commonly linked with plaques and maculo-papular eruptions. Bone cysts are rare in the absence of skin lesions, so routine radiography of hands and feet is of little diagnostic value. The basic criteria for establishing the diagnosis of sarcoidosis are twofold: (a) Suggestive clinical and/or radiological features with evidence of generalized involvement. (b) Histological proof of sarcoid tissue from at least one tissue. Evidence of one without the other is insufficient, for clinical or radiological manifestations alone present too wide a differential diagnostic problem and, conversely, isolated histological evidence of sarcoid tissue could be construed as a local sarcoid-tissue reaction. Histological confirmation is obtained whenever possible from accessible involved tissues (skin or lymph node). Otherwise blind biopsy of liver, scalene lymph node or gastrocnemius muscle is employed, or alternatively the Siltzbach-Kveim test is performed. It is a safe, simple and specific outpatient skin test, which provides histological confirmation in three-quarters of patients with sarcoidosis. The natural history of sarcoidosis and the response to treatment vary with the type of disease--namely subacute (transient) or chronic (persistent) forms of sarcoidosis. The only treatment which favourably influences clinical, or radiological or histological features of the disease is corticosteroid therapy. Indications for treatment are: ophthalmic involvement, steadily worsening chest radiograph, breathlessness, persistent hypercalciuria, disfiguring skin lesions, neurological involvement, disordered glandular function.
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PMID:Sarcoidosis. 1288 95

This is a patient who presented as a fever of unknown origin (FUO) due to sarcoidosis-lymphoma syndrome. In favor of sarcoidosis was an elevated angiotensin-converting enzyme level, hypercalciuria, and bilateral hilar adenopathy on chest x-ray and chest CT. CT-guided biopsy of a hilar node revealed B-cell lymphoma. The differential diagnosis of sarcoidosis versus lymphoma and sarcoidosis-lymphoma syndrome as a cause of fever of unknown origin is discussed in this article.
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PMID:FUO due to sarcoidosis-lymphoma syndrome. 1502 78


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