Review
Manifestations of sarcoidosis: Analysis of 145 patients, with a review of nine series selected from the literature

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Abstract

One hundred and forty-five patients with proved generalized sarcoidosis are described. The findings in these patients are compared with those of nine other selected series of proved cases from the literature, and the incidence of the various manifestations determined in the combined group of 1,254 patients.

Differing from other series were such findings in our patients as alopecia and pigmentary skin changes, a relatively high incidence of mild nervous system and joint involvement, two instances of association with lupus erythematosus, and five familial cases.

Although the onset of the disease was usually in the third decade, patients with symptoms beginning as early as age seven years and as late as age seventy-four years were observed by us. In our series 43 per cent of the patients had symptoms of a systemic nature, including fever and weight loss when the disease was active.

In the combined series, the lungs and mediastinal lymph nodes were most frequently involved (94 per cent), with the peripheral lymph nodes next in frequency (73 per cent). The other organs most commonly involved were skin (32 per cent), eye (21 per cent), liver (21 per cent), spleen (18 per cent), bone (14 per cent), salivary glands (6.1 per cent), joints (5.7 per cent), heart (5.1 per cent), nervous system (5.1 per cent) and kidneys (4.3 per cent). All other organs except the bronchi, parathyroid and ovary were found to be infrequently affected, including one case of suspected adrenal involvement seen by us.

Laboratory findings noted were leukopenia (31 per cent), anemia (31 per cent), eosinophilia (25 per cent), thrombocytopenia (1.9 per cent), increased erythrocyte sedimentation rate (61 per cent), decreased serum albumin (37 per cent), increased serum globulin (47 per cent), hypercalcemia (17 per cent), abnormal reactions to serologic tests for syphilis (14 per cent), increased serum alkaline phosphatase (35 per cent) and decreased skin reactions of the delayed type.

In our series and in the combined group, the incidence of sarcoidosis was much higher in Negro subjects than in white. Of our patients females had a higher incidence than males; thus almost half of our patients were Negro females.

The race and sex incidence of each manifestation in our patients was compared to the racesex distribution of our group as a whole. No statistically significant difference in sarcoid manifestations was found primarily due to sex or race except for a higher incidence of hypoalbuminemia and hyperglobulinemia in Negro subjects.

The mortality for the combined series was 3.4 per cent from the disease itself and 1.2 per cent from tuberculosis; however, the follow-up periods were often short.

Marked differences in the incidence of the various manifestations were noted between series, but analysis of the source of patient material explained many of them. Other factors producing differences between the various series reviewed are discussed.

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    This study was supported in part by the Pennsylvania Tuberculosis and Health Society.

    1

    From the Pulmonary Disease Section, Department of Medicine, Hospital of the University of Pennsylvania and the University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.

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