Which of the following are named by their shape?

A patient seeks help for recurrent palatal pain. She presents with multiple punctate ulcers in the hard palate that were preceded by tiny blisters. Her lesions typically heal in about 2 weeks and reappear during stressful times. She has:

a. Aphthous ulcers b. Recurrent primary herpes c. Recurrent secondary herpes d. Erythema multiforme e. Discoid lupus

A nurse recalls leukemia is classified as:

a) differentiated or undifferentiated b) benign or malignant c) proliferative or nonproliferative d) acute or chronic