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Johns Hopkins Med J. 1980 Apr;146(4):156-63.

Micropenis. I. Criteria, etiologies and classification.

Abstract

A micropenis is an abnormally small penis with a normal configuration. This finding constitues a sign not a diagnosis. The etiologies may be classified as hypogonadotropic hypogonadism, primary hypogonadism, androgen insensitivity, or idiopathic; among 45 patients, the respective percentages in these categories were 31, 24, 2 and 7% with 36% as yet undiagnosed. Various clinical syndromes may include a micropenis and can be classified in one of the etiologic categories. This paper provides the criteria for determining the presence of a micropenis. A phallic length which is 2.5 or more standard deviations below the mean should be considered as abnormal; for an infant of 0 to 5 months of age, the lower limit is 1.9 cm. The technique of penile measurement, determination of etiology, guidelines for sex of rearing and psychologic, surgical and medical management are discussed.

PMID:
7366061
[PubMed - indexed for MEDLINE]
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