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Description:Taken from a cervical smear specimen, this Gram-stained photomicrograph reveals the presence of “deceptive” extracellular diplococcal bacteria. Of importance, a bacterial culture returned a negative result.

Because investigations of sexual abuse may be initiated on the basis of a laboratory diagnosis of gonorrhea, it is important that only strains of N. gonorrhoeae be identified and reported as N. gonorrhoeae.

Several Neisseria and related species may be misidentified as N. gonorrhoeae unless appropriate differential tests are performed.
Laboratory criteria for diagnosis:

- Isolation of typical gram-negative, oxidase-positive diplococci (presumptive Neisseria gonorrhoeae) from a clinical specimen, or

- Demonstration of N. gonorrhoeae in a clinical specimen by detection of antigen or nucleic acid, or

- Observation of gram-negative intracellular diplococci in a urethral smear obtained from a male

High Resolution: Click here for hi-resolution image (18.03 MB)
Content Providers(s):CDC/ Joe Miller
Creation Date:1975
Photo Credit:
Links:CDC - Gonorrhea (Neisseria gonorrhoeae): 1996 Case Definition - CSTE Position Statement Number: 09-ID-35
CDC - National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of STD Prevention; Sexually Transmitted Diseases (STDs); Gonorrhea Laboratory Information Characteristics of N. gonorrhoeae and Related Species of Human Origin
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.