Transcript Inflammatory rosacea

Dr.Ahmed Abdul-Aziz Ahmed
Assistant Clinical Professor
Dermatology&Venerology.
F.I.B.M.S.
Acne
How a Pimple Forms(1)
• A hair follicle is
surrounded by
sebaceous glands,
which excrete
sebum to the
surface of the skin.
How a Pimple Forms (2)
• Excess oil, unshed
skin cells, and
natural bacteria
within the skin
become sticky and
create a plug
around the hair
follicle.
How a Pimple Forms (3)
• As more sebum is
produced in the
plugged hair
follicle, the,
swelling occurs and
appears on the
surface of the skin.
• Overall, this
pimple-appearing
process takes 2-3
weeks.
Comedonal
Variation of Acne
Light
Characterized by
whiteheads,
blackheads, papules,
pustules.
Moderate
Severe
Inflammatory
increases and
becomes more
serious. It usually
happens on surface
but sometimes have
deeper pustules.
Characterized by
cysts and nodules,
many are in the body,
scars are easily
formed.
Acne
Classifications:
1. Comedonal (mild) acne
2. Inflammatory (moderate) acne
3. Nodular cystic (severe) acne
Whiteheads
(comedo) vs.
blackheads
(comedons or open
comedos)
Whitehead and blackheads
The seborrhoea, comedones and scattered
inflammatory papules of teenage acne.
CLOSED COMODOME
OPEN COMODOME
PAPULAR ACNE
PUSTULAR ACNE
Closed comedones (whiteheads)
• closed comedo
(a whitehead):
Accumulation of sebum
converts a
microcomedo into this.
Closed comedones (whiteheads)
Open comedo (blackhead)
• open comedo
(a blackhead):
when follicular orifice is
opened + distended.
Melanin + packed
keratinocytes + oxidized
lipids  dark colour
Open comedo (blackhead)
Acne vulgaris Inflammatory papules, pustules, crusting
on the forehead, cheeks, and chin.
• Acne vulgaris
Comedones rupturing
into the dermis give
rise to an
• intense inflammatory
response with pustule
and abscess formation
(so-called“cystic” or
nodulocystic acne).
ACNE CONGLOBATA
Prominent and inflamed cysts are the main
features here.
Cysts
Acne Conglobata
Cystic acne – this is a bad prognostic sign.
Most patients will have acne for decades
and be left with many scars
isotretinoin is the most effective drug for
cystic acne
Infantile acne
Infantile acne. Pustulocystic lesions on
the checks.
Infantile Acne
A group of open comedones (blackheads)
following the use of a greasy cosmetic.
Steroid-induced acne in a seriously ill
patient.
Warn the patient that staining may
be left. This will fade overtime.
Acne scarring: worth treating a test area with a
resurfacing laser
ICE PICK SCAR
THUMBPRINT SCARS
ATROPHIC SCARS
HYPERTROPHIC SCARS
KELOIDS
Rosacea
Typical rosacea with papules and pustules on a
background of erythema. Note he also has a patch of
scaly seborrhoeic eczema on his brow.
Rosacea
• A common eruption,
more common with age
• There is inflammation
but no obstruction of
sebaceous glands
• Papules, pustules,
diffuse erythema, and
possible induration of
the affected area
• No black heads
Inflammatory rosacea
• Papules and
pustules are
characteristic
Rosacea
Rosacea Typical moderately severe involvement with
confluent erythematous papules and pustules on the
forehead, cheeks, and nose. Note the
absence of comedones that are typically seen with acne
vulgaris.
Inflammatory
rosacea
Marked rhinophyma
Rosacea
Rhinophyma
Acne vs. Rosacea
• acne
• rosacea