Case 1: 45-year-old woman with a solitary lesion on her left thigh.
Multiple, well-demarcated, red to blue-red structures typical of a saccular pattern.
Absence of pigment network, globules or streaks.
Diagnosis: cherry hemangioma
Case 2: red saccular pattern a the inferior pole of a pigmented lesion with a typical reticular pattern.
Diagnosis: cherry hemangioma associated with a melanocytic nevus or collision tumor.
Other cases of collision tumors: 1 2