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Epidemiological Aspects with Notes on a Possible Relationship to the Chewing of Pine Pitch

ROBERT B. BAER, M.D.

AMA Arch Intern Med. 1960;105(1):60-68.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Generalized sarcoidosis is becoming recognized as a common disease, but its etiology remains unknown. For years, tuberculosis was considered the most likely underlying cause; however, as time has passed, it has become recognized as a probable complication rather than a cause.¹ Specific agents such as helminths,² beryllium,^3,4 histoplasma,^5,6 cryptococci,⁷ and foreign bodies ^8,9 have been associated with isolated cases, but by no means can they account for the pathogenesis in the vast majority of involved patients. Recently, environmental influences have been considered as a potential etiologic factor. This idea evolved from the work by Michael et al.,¹⁰ who, in 1950, reviewed 226 cases from military personnel, and discovered that most were born in rural areas of the southern section of the United States. In 1955, Gentry, Nitowsky and Michael¹¹ published an extensive survey of 297 veterans showing that the birthplace and residence when inducted into the service correlated with an . . . [Full Text PDF of this Article]

Author Affiliations
San Francisco

From the Department of Medicine, Stanford University School of Medicine.

Footnotes
Submitted for publication April 13, 1959.

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