Biomedical subjects
Publications and source records attributed to J M Fortea Baixauli.
We present a case of subungueal keratoacanthoma. The tumor recurred three months after extirpation and didn't resolve spontaneously. The patient need a new surgery a year later. We revised the literature and comment the clinical and histological features that define this distinct entity and differentiate it from common keratoacanthoma and subungueal squamous cell carcinoma.
Kaposi's sarcoma is frequently associated to other primary neoplasias, especially those arising from mononuclear-phagocytic system. A case of Kaposi's sarcoma associated to Hodgkin's disease is presented.
Phacomatosis pigmentokeratotica is a rare syndrome defined by the association of an organoid nevus occasionally with sebaceous differentiation, a speckled lentiginous nevus, and other extracutaneous anomalies. The disorder is a consequence of the so-called twin spot genetic mechanism. We describe the first occurrence involving malignant degeneration of both nevus components, giving rise to three basal cell carcinomas over the sebaceous nevus and a malignant melanoma of the superficial spreading type over the speckled lentiginous nevus. This observation, in concert with the other instances reported in the literature, points to the need for adequate patient follow-up to ensure early detection and treatment of any possible associated malignant degeneration.