Post-inflammatory pigment alteration - Revision history

Michael at 15:11, 15 January 2014

2014-01-15T15:11:28Z

← Older revision		Revision as of 15:11, 15 January 2014
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	Clinical DDx:		Clinical DDx:
	*[[Melanocytic lesions]] - esp. [[malignant melanoma]].		*[[Melanocytic lesions]] - esp. [[malignant melanoma]].

			==Gross==
			*Hyperpigmentation or hypopigmentation.

			Images:
			*[http://www.dermnetnz.org/colour/postinflammatory-pigmentation.html Post-inflammatory hyperpigmentation (dermnetnz.org)].

	==Microscopic==		==Microscopic==

Michael at 15:10, 15 January 2014

2014-01-15T15:10:27Z

← Older revision		Revision as of 15:10, 15 January 2014
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	'''Post-inflammatory pigment alteration''', abbreviated '''PIPA''', is benign dermal pigmentation change. It may be either hyperpigmentation or hypopigmentation.<ref>{{Cite journal \| last1 = Cardinali \| first1 = G. \| last2 = Kovacs \| first2 = D. \| last3 = Picardo \| first3 = M. \| title = Mechanisms underlying post-inflammatory hyperpigmentation: lessons from solar lentigo. \| journal = Ann Dermatol Venereol \| volume = 139 Suppl 4 \| issue = \| pages = S148-52 \| month = Dec \| year = 2012 \| doi = 10.1016/S0151-9638(12)70127-8 \| PMID = 23522630 }}</ref>		'''Post-inflammatory pigment alteration''', abbreviated '''PIPA''', is benign dermal pigmentation change. It may be either hyperpigmentation or hypopigmentation.<ref>{{Cite journal \| last1 = Cardinali \| first1 = G. \| last2 = Kovacs \| first2 = D. \| last3 = Picardo \| first3 = M. \| title = Mechanisms underlying post-inflammatory hyperpigmentation: lessons from solar lentigo. \| journal = Ann Dermatol Venereol \| volume = 139 Suppl 4 \| issue = \| pages = S148-52 \| month = Dec \| year = 2012 \| doi = 10.1016/S0151-9638(12)70127-8 \| PMID = 23522630 }}</ref>

	'''Post-inflammatory hyperpigmentation''' and '''~~Post~~-inflammatory hypopigmentation''' redirect here.		'''Post-inflammatory hyperpigmentation''' and '''post-inflammatory hypopigmentation''' redirect here.
	==General==		==General==
	Clinical DDx:		Clinical DDx:

Michael at 15:07, 15 January 2014

2014-01-15T15:07:52Z

← Older revision		Revision as of 15:07, 15 January 2014
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	'''Post-inflammatory pigment alteration''', abbreviated '''PIPA''', is benign dermal pigmentation change. It may be either hyperpigmentation or hypopigmentation.<ref>{{Cite journal \| last1 = Cardinali \| first1 = G. \| last2 = Kovacs \| first2 = D. \| last3 = Picardo \| first3 = M. \| title = Mechanisms underlying post-inflammatory hyperpigmentation: lessons from solar lentigo. \| journal = Ann Dermatol Venereol \| volume = 139 Suppl 4 \| issue = \| pages = S148-52 \| month = Dec \| year = 2012 \| doi = 10.1016/S0151-9638(12)70127-8 \| PMID = 23522630 }}</ref>		'''Post-inflammatory pigment alteration''', abbreviated '''PIPA''', is benign dermal pigmentation change. It may be either hyperpigmentation or hypopigmentation.<ref>{{Cite journal \| last1 = Cardinali \| first1 = G. \| last2 = Kovacs \| first2 = D. \| last3 = Picardo \| first3 = M. \| title = Mechanisms underlying post-inflammatory hyperpigmentation: lessons from solar lentigo. \| journal = Ann Dermatol Venereol \| volume = 139 Suppl 4 \| issue = \| pages = S148-52 \| month = Dec \| year = 2012 \| doi = 10.1016/S0151-9638(12)70127-8 \| PMID = 23522630 }}</ref>

			'''Post-inflammatory hyperpigmentation''' and '''Post-inflammatory hypopigmentation''' redirect here.
	==General==		==General==
	Clinical DDx:		Clinical DDx:

Michael at 15:04, 15 January 2014

2014-01-15T15:04:28Z

← Older revision		Revision as of 15:04, 15 January 2014
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	[[Category:Non-malignant skin disease]]		[[Category:Non-malignant skin disease]]
			[[Category:Diagnosis]]

Michael: /* Microscopic */

2014-01-15T15:02:31Z

Microscopic

← Older revision		Revision as of 15:02, 15 January 2014
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	DDx:		DDx:
	*[[~~Ephilis~~]] (freckle).		*[[Ephelis]] (freckle).
	*[[Solar lentigo]].		*[[Solar lentigo]].

Michael: create

2014-01-15T15:01:39Z

create

New page

'''Post-inflammatory pigment alteration''', abbreviated '''PIPA''', is benign dermal pigmentation change. It may be either hyperpigmentation or hypopigmentation.<ref>{{Cite journal | last1 = Cardinali | first1 = G. | last2 = Kovacs | first2 = D. | last3 = Picardo | first3 = M. | title = Mechanisms underlying post-inflammatory hyperpigmentation: lessons from solar lentigo. | journal = Ann Dermatol Venereol | volume = 139 Suppl 4 | issue = | pages = S148-52 | month = Dec | year = 2012 | doi = 10.1016/S0151-9638(12)70127-8 | PMID = 23522630 }}</ref>

==General==
Clinical DDx:
*[[Melanocytic lesions]] - esp. [[malignant melanoma]].

==Microscopic==
Features:
*Perivascular pigment incontinence.
*No melanocytic nests.
*No increase of melanocytes.

DDx:
*[[Ephilis]] (freckle).
*[[Solar lentigo]].

==Stains==
*[[Fontana-Masson stain]] +ve.
*[[Iron stain]] -ve.

==See also==
*[[Melanocytic lesions]].

==References==
{{Reflist|1}}

[[Category:Non-malignant skin disease]]