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Penis and scrotum

Inflammatory lesions

Tancho’s nodules / paraffinomas / lipogranulomas

 

Reviewers: Antonio Cubilla, M.D. and Alcides Chaux, M.D. (see Author/Reviewers page)

Revised: 20 February 2010, last major update February 2010

Copyright: (c) 2002-2010, PathologyOutlines.com, Inc.

 

Definition

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Tancho’s nodules

● Custom among some Asian populations to implant, inject or insert paraffin or other foreign material (such as glass spheres) under the skin of the penis to improve sexual pleasure

Tancho is a brand of hair pomade widely used in the Far East and Southeast Asia

 

Lipogranuloma

● Custom among some Asian populations to enlarge penis by injecting mineral oil, paraffin (paraffinoma), silicone or vaseline (Urology 2008;71:1132)

● Inflammatory / foreign body reaction may occur years after the injection

 

Clinical features

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● Associated with genital tattoo

● May cause fistulas or ulcers (J Eur Acad Dermatol Venereol 2008;22:845)

● May be important to recognize for forensic cases (Med Sci Law 2006;46:349)

 

Tancho’s nodule

● Palpable subcutaneous firm nodules

 

Lipogranuloma

● Distortion of organ with evident gross abnormalities

● May extend to adjacent structures such as scrotum

 

Case reports

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71 year old man with paraffinoma almost 40 years after injections (Int Urol Nephrol 2007;39:553)

 

Treatment

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● May require local surgical resection

 

Clinical images

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Intraurethral paraffin

 

Micro images

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Tancho’s nodules

● Inflammatory foreign body reaction with variable fibrosis surrounding inserted material

 

Lipogranuloma

● Numerous vacuoles ranging from tiny to large and cystically dilated (pseudocysts)

● Stroma may be sclerotic (sclerosing lipogranuloma) and contain inflammatory cells and foreign-body giant cells

 

End of Penis and scrotum > Inflammatory Lesions > Tancho’s nodules and paraffinomas

 

 

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