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Common Lumps and Bumps in Children
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Common Lumps and Bumps in Children
Common Lumps and Bumps in Children - What it is
Mastocytoma is an uncommon skin lump caused by an excess of a type of white blood cell found in the skin known as mast cells.
They present as a single or multiple yellow-tan lump often on the arms, neck or trunk. It may be itchy or have no symptoms at all.
The surface of the lump often has a wrinkled "orange-peel" like appearance and may uncommonly blister. Rubbing the lump may cause it to turn red and swell up, resembling an insect bite.
JUVENILE XANTHOGRANULOMA (JXG):
Juvenile xanthogranuloma (JXG) is an uncommon skin lump occurring mainly in infants and young children.
It is caused by an excess of a type of cell found in the skin known as histiocytes and is benign.
JXG presents as a firm, round lump in the skin with an orange to yellow colour. They may initially appear reddish.
These usually occur in the head, neck or upper body region as a single lump but sometimes some patients may have multiple JXG.
JXG are usually not itchy or painful.
Rarely, JXG may be found outside the skin in other areas including the eyes, muscles or liver.
Patients with many JXG may rarely have an increased risk of a type of childhood leukaemia and may need to be regularly monitored.
PILOMATRICOMA:
A pilomatricoma is a benign growth arising from cells forming the hair follicle.
It presents as a firm-to-hard, flesh-coloured or bluish lump, usually on the head, neck or upper limbs.
A pilomatricoma usually does not cause any symptoms but it may become red and painful if it becomes inflamed or infected. It may be painful on direct pressure.
Common Lumps and Bumps in Children - Symptoms
Common Lumps and Bumps in Children - How to prevent?
Common Lumps and Bumps in Children - Causes and Risk Factors
Common Lumps and Bumps in Children - Diagnosis
Mastocytomas, juvenile xanthogranulomas and pilomatricomas are usually diagnosed clinically. If required, a biopsy may be required to confirm the diagnosis by looking under the microscope.
Common Lumps and Bumps in Children - Treatments
Mastocytomas are benign and can be left alone. They usually disappear over a few years.
Oral antihistamines can be taken to control symptoms of itch.
JUVENILE XANTHOGRANULOMA:
JXG usually disappears by itself over a few years and can be left alone if it does not bother the child.
If causing symptoms, JXG may be surgically excised, leaving a small scar.
PILOMATRICOMA:
Pilomatricomas do not usually disappear with time and will either remain the same size or grow slowly.
A small surgery (punch or excision biopsy) may be performed to completely remove the pilomatricoma. It does not usually recur after being removed.
The information above is also available for download in pdf format.
Common Lumps and Bumps in Children - Preparing for surgery
Common Lumps and Bumps in Children - Post-surgery care
Common Lumps and Bumps in Children - Other Information
Overview
Article contributed by
Dermatology Service
,
KK Women's and Children's Hospital
;
Dermatology Service
,
KK Women's and Children's Hospital
The information provided is not intended as medical advice.
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