Kaposi sarcoma

Age: 41 year
Gender: Male
Site: Heels
Duration: 6 months
Morphology: Asymptomatic purplish nodules in HIV-negative man with no lymph nodes enlargement or organomegaly.

Acral lentiginous melanoma

Age: 40 year
Gender: Male
Site: Middle finger
Duration: One year
Morphology: Hutchinson's sign + Partial nail dystrophy.

Mycosis fungoides

Age: 55 year
Gender: Male
Site: Trunk
Duration: 2 years
Morphology: Multiple, pruritic, red to brown infiltrative plaques.

Kaposi sarcoma

Age: 60 year
Gender: male
Site: Leg
Duration: One year
Morphology: Asymptomatic dark-blue nodule with lobulated surface. Notice the scar above the lesion (previous lesion removed surgically).