Cutaneous sebaceous tumours and Lynch syndrome: long-term follow-up of 60 patients.

Background: Sebaceous neoplasms (SN) may appear sporadically in the general population but may also be part of the Muir-Torre variant of Lynch syndrome (MT-LS). There are few studies in southern Europe on the incidence of MT-LS in the population of patients with SN.

Aim: To retrospectively review patients with SN and to analyse their clinical features and the incidence of MT-LS.

Subungual Melanoma: A Descriptive Study of 34 Patients.

Introduction And Objectives: Subungual melanoma constitutes a diagnostic challenge because it often has an atypical clinical presentation. The aims of this study were to revise the clinical and pathologic characteristics of patients with subungual melanoma diagnosed at a tertiary care university hospital and analyze the factors potentially associated with a delayed diagnosis.

Material And Methods: We analyzed data for 34 patients diagnosed with subungual melanoma at our hospital over a period of 20 years.

Cutaneous Neoplasms in Myotonic Dystrophy Type 1.

Background: The most frequent skin features associated with myotonic dystrophy type 1 (DM1) are frontal alopecia and pilomatrixomas. Several reports suggest that the incidence of basal cell carcinoma is increased in DM1. However, two recently published studies examining this topic have contradictory results.