Tricholemmoma is linked to Cowden syndrome and can be benign or malignant.
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March 2018 in “The American journal of dermatopathology/American journal of dermatopathology” BerEP4 and CD34 staining can help tell apart tricholemmoma from basal cell carcinoma.
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January 2017 in “Journal of veterinary medical science” A dog had a rare skin tumor called desmoplastic tricholemmoma.
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July 2015 in “European journal of histochemistry” Sox9 is present in most canine skin tumors and may help understand stem cells' role in these cancers.
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January 2019 in “Journal of cutaneous pathology” The mTOR pathway may be involved in the development of hair follicle tumors, with higher activity in malignant tumors.