[Medullar cancer of the thyroid associated with dermal mucinosis].
BACKGROUND
Dermal mucinosis can be associated with numerous pathologies, in particular involving the thyroid, but has never been described in the case of a medullar cancer of the thyroid (MCT).


METHODS
A 69-year-old man consulted for a facial erythrosis, which had been developing for a few weeks without any identified triggering factor. The skin biopsy showed dermal mucinosis and tests revealed a sporadic medullar cancer of the thyroid with secondary bone, ganglion and medullar localizations.


CONCLUSIONS
The association between medullar cancer of the thyroid and dermal mucinosis has never been described. Several hypotheses may explain this: the thyroid pathology itself, whatever its nature, the capacity of the MCT to synthesize mucin and the medullar metastatic overgrowth.
Fery-Blanco
C
C
Département de dermatologie, CHU Saint-Jacques, 2, place Saint-Jacques, 25030 Besançon cedex, France.
Pelletier
F
F
Humbert
P
P
Aubin
F
F
D000368:Aged; D002277:Carcinoma / Q000150:complications* / Q000175:diagnosis; D005148:Facial Dermatoses / Q000150:complications* / Q000175:diagnosis; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D017520:Mucinoses / Q000150:complications* / Q000175:diagnosis; D009367:Neoplasm Staging; D013964:Thyroid Neoplasms / Q000150:complications* / Q000175:diagnosis