Flat blue/grey areas on the back.
Hyperpigmented patch on the leg.
Multiple areas of deep blue dermal pigmentation on the back.
Extensive blue-grey discolouration affecting the lower back.
Blue discolouration affecting the leg.
Multiple areas of deep blue dermal pigmentation on the back.
Blue pigmented patches over buttocks and sacrum
Flat blue grey birthmark on the lower spine.
Dermal melanocytosis over the lower lumbar region. Scattered erythematous papules over back.
Widespread hyperpigmented, irregular patches across back of patient. Patches have poorly defined borders.
Widespread multiple greyish blue patches over back of a child with skin type 4.
Blue black macular patches on arms.
Blue black macular patches over lumbosacral area.
This birthmark is a blue-grey patch of skin most commonly found on the back or buttocks (although can appear in other places too)
It is completely asymptomatic and does not require treatment. The patches normally resolve by the age of 4 or 5 years. The larger lesions can persist for longer.
References https://www.stemlynsblog.org/dont-be-rash-petechiae-in-well-kids-at-st-emlyns/https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/dermal-melanocytosis-previously-known-as-mongolian-spot/
https://dermnetnz.org/topics/lumbosacral-dermal-melanocytosis/
