Table I:

Category discriminants trained in each dermatology PALM

Morphology	Configuration	Distribution	Diagnosis
Bulla	Annular	Acral	Acne
Erosion	Arcuate	Dermatomal	Atopic dermatitis
Eschar	Follicular	Diaper area	Herpes simplex virus
Macule	Geometric	Extensor	Intertrigo
Nodule	Grouped	Flexural	Kaposi’s sarcoma
Papule	Linear	Intertriginous	Lichen planus
Patch	Oval	Lymphangitic	Lichen simplex chronicus
Plaque	Reticular	Photodistributed	Lupus
Pustule	Round	Scattered	Psoriasis
Ulcer	Serpiginous	Solitary	Seborrheic dermatitis
Vesicle	Targetoid	Symmetric extremities	Squamous cell carcinoma
		Widespread	Tinea
			Urticaria
			Verruca
			Vitiligo