Laptop computer-induced hyperpigmentation.

A 25-year-old afebrile man presented with one year of worsening non-pruritic hyperpigmented non-blanchable reticulated patches and one erosion on his abdomen. He denied trauma, contact with new detergents, and recent travel. He was not taking medications and denied ever having similar skin findings.

PRURITIC RASH IN AN ELDERLY PATIENT WITH UNCONTROLLED DIABETES MELLITUS.

Objective: Acquired reactive perforating collagenosis is an uncommon skin disease that belongs to a group of dermatologic disorders characterized by transepidermal elimination of dermal material. It is highly associated with systemic disease, primarily diabetes mellitus and dialysis-dependent chronic renal failure.

Methods: A 70-year-old female with 20 years of poorly controlled type 2 diabetes mellitus presented with a 6-month history of multiple pruritic erythematous papules and nodules with central hyperkeratosis, involving her right dorsal arm.

Melanoma in an Active Duty Marine.

Given that the majority of active duty service members are young and healthy, potentially malignant diagnoses such as skin cancer may be overlooked. Although melanoma accounts for only approximately 1% of skin cancers, it causes the greatest majority of skin cancer deaths. We present the case of a 27-year-old active duty Marine who presented with a hyperpigmented macule at his lateral neck that was a malignant melanoma in situ.