MedGen

Pachyonychia congenita (PC) is characterized by hypertrophic nail dystrophy, painful palmoplantar keratoderma and blistering, oral leukokeratosis, pilosebaceous cysts (including steatocystoma and vellus hair cysts), palmoplantar hyperhydrosis, and follicular keratoses on the trunk and extremities. [from GeneReviews]

A tumor (abnormal growth of tissue) of the skeleton. [from HPO]

A carcinoma that arises from the prostate gland and has spread to other anatomic sites. [from NCI]

A type of primary immune deficiency that is characterized by a more severe defect in both the T- and B-lymphocyte systems. [from HPO]