Differential Diagnosis Tool
UNDER CONSTRUCTION Try at your own Risk!
So you have a rash and you want to know what it is. The DermAtlas Differential Diagnosis Tool allows you to enter a description of your rash. After you submit your description, the search engines will find lesions in our database with a similar description.
Morphology		Please select abscess comedone crease crust/eschar cyst depressed (atrophy, loss of soft tissue,scar) edema fibrosis (scar, increased collagen) fissure lichenification maceration macular / flat (macule / patch) morbilliform nodule papule papulosquamous (bump, scale) patch pit/sinus plaqulous (plaque / nodule / tumor) purpura pustule scale tumor ulcerated (erosion / ulcer) vesiculobullous (blister, pustule) wheal/hive wrinkling
Color		Please select black blue bronze brown gray green orange pink purple red silver skin color tan white/hypo yellow
Pattern		Please select acneiform acral (centripetal - extremity predominant) asymmetric central (centrifugal - trunk predominant) circumferential clothing covered areas extensor surfaces generalized, disseminated geographic intertrigenous (creases) localized midline periorificial pityriasis rosea-like sites not clothing covered solitary sun exposed areas symmetric trauma prone sites unilateral
Organization		Please select angulated annular areas of mechanical trauma Blaschko lines concentric confluent cribriform dense dermatomal discrete extensor surfaces flexural surfaces follicular geographic grouped, clustered ill defined lichenoid linear lobulated morbilliform mottled/speckled patchy pedunculated periorbital periorificial periungual petaloid polycyclic polygonal radiating reticulated scarlatiniform scattered segmental serpiginous sporotrichoid transverse uniform vertical warty well demarcated
Location		Please select abdomen ankle anus areola arm axilla (armpit) back beard area brain breast buccal mucosa buttock calf canthus, inner canthus, outer cheek chest chin conjunctiva conjunctiva, bulbar conjunctiva, palpebral cornea dentition diaper area ear ear lobe ear, antihelix ear, helix elbow esophagus eye eye brow eye lash eye lid face finger foot forearm forehead genital gingiva glans penis groin hair hand head heel hip hymen iris knee knuckle lacrimal gland leg limbus lip lung maxilla mouth mouth, floor of nail, all nail, foot nail, hand neck nipple nose occiput palate, hard palate, soft palm penis perianal perineum philtrum plantar surface plate, soft popliteal fossa (knee crease) retina sacrum (tail bone) scalp sclera scrotum shin shoulder sole suprapubic area thigh thumb thyroid tibia toe toe web tongue tongue, dorsal surface tongue, lateral border tongue, ventral surface tonsilar pillar tooth total body tragus trunk umbilicus (navel) urethra urine uvula vagina vermillion/ vermilion border vulva (labia) web space, foot web space, hand wrist