Clinical A-Z list

The clinical chapters provide concise guidance about dermatological conditions and their management. Where there is diagnostic uncertainty refer to the diagnostic tables.

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Pachyonychia congenita (Last Updated: 30/12/2015)
Paget’s disease of the nipple (Last Updated: 30/06/2013)
Pagetoid reticulosis (Last Updated: 22/08/2013)
Palmar xanthomata (Last Updated: 23/11/2014)
Palmoplantar keratoderma (Last Updated: 27/01/2017)
Panniculitis (Last Updated: 06/07/2016)
Panton-Valentine leukocidin (PVL) - associated Staphylococcus aureus (Last Updated: 23/11/2014)
Papular dermatitis (Last Updated: 01/06/2014)
Papular prurigo (Last Updated: 01/06/2014)
Papular-purpuric gloves and socks syndrome (PPGSS) (Last Updated: 30/01/2014)
Papular urticaria (Last Updated: 06/07/2016)
Papuloerythroderma of Ofuji (Last Updated: 10/07/2015)
Papulonecrotic tuberculid (Last Updated: 29/10/2015)
Paraneoplastic conditions (Last Updated: 20/08/2016)
Paraneoplastic pemphigus (Last Updated: 06/09/2015)
Parapsoriasis (Last Updated: 05/04/2016)
Paronychia (Last Updated: 08/11/2016)
Pearly penile papules (Last Updated: 12/04/2015)
Pediculosis (Last Updated: 02/07/2015)
Peeling skin conditions (Last Updated: 06/07/2016)
Peeling Skin syndromes (Last Updated: 26/11/2015)
Pemphigoid gestationis (pemphigoid of pregnancy) (Last Updated: 18/01/2015)
Pemphigus foliaceus (and its variants) (Last Updated: 06/09/2015)
Pemphigus vulgaris and pemphigus vegetans (Last Updated: 28/04/2017)
Perforating dermatoses (Last Updated: 29/12/2015)
Perioral dermatitis / periocular dermatitis (syn. periorifacial dermatitis) (Last Updated: 06/07/2016)
Periorbital hyperpigmentation (syn. dark circles; periorbital hypermelanosis) (Last Updated: 28/11/2013)
Peripheral neuroectodermal tumours (Last Updated: 28/04/2017)
Periungal fibromas (Last Updated: 27/08/2013)
Perniosis (syn. chilblains) (Last Updated: 11/08/2015)
Peutz-Jeghers syndrome (Last Updated: 15/08/2016)
Photodermatoses: an overview (Last Updated: 06/07/2016)
Photodermatoses: drug / chemical-induced (Last Updated: 24/04/2017)
Phrynoderma (Last Updated: 30/12/2015)
Phytophotodermatitis (Last Updated: 09/11/2013)
Piebaldism (Last Updated: 28/04/2017)
Piezogenic pedal papules (Last Updated: 24/11/2014)
Pigmentary demarcation lines (syn. Futcher’s lines; Voigt’s lines) (Last Updated: 02/07/2016)
Pigmented purpuric dermatoses (syn. capillaritis) (Last Updated: 27/01/2017)
Pigmented spindle cell naevus of Reed (Last Updated: 19/01/2013)
Pilar cyst (syn. trichilemmal cyst) (Last Updated: 08/11/2016)
Piloleiomyoma (Last Updated: 24/04/2013)
Pilomatricoma (syn. pilomatrixoma) (Last Updated: 30/06/2013)
Pincer nail deformity (Last Updated: 02/05/2016)
Pitted keratolysis (Last Updated: 11/04/2017)
Pityriasis alba (Last Updated: 15/12/2016)
Pityriasis amiantacea (Last Updated: 24/11/2014)
Pityriasis lichenoides (Last Updated: 15/12/2016)
Pityriasis rosea (Last Updated: 15/12/2016)
Pityriasis rotunda (Last Updated: 19/08/2016)
Pityriasis rubra pilaris (Last Updated: 28/07/2015)
Pityriasis versicolor (Last Updated: 15/12/2016)
Plane xanthomata (Last Updated: 08/09/2013)
Poikiloderma of Civatte (Last Updated: 28/11/2013)
Poikilodermatous mycoses fungoides (syn. poikiloderma atrophicans vasculare) (Last Updated: 24/11/2014)
Polyarteritis nodosa (Last Updated: 27/06/2015)
Polycystic Ovarian syndrome (PCOS) (Last Updated: 24/11/2014)
Polymorphic eruption of pregnancy (syn. pruritic urticarial papules and plaques of pregnancy) (Last Updated: 15/12/2016)
Polymorphic light eruption & juvenile spring eruption (Last Updated: 20/12/2016)
Porokeratosis (Last Updated: 08/11/2016)
Porphyria (Last Updated: 28/04/2017)
Port-wine stain (syn. naevus flammeus) (Last Updated: 28/04/2017)
Post-chikungunya pigmentation (Last Updated: 28/11/2013)
Pregnancy related skin conditions - an overview (Last Updated: 15/12/2016)
Pretibial myxoedema (Last Updated: 01/06/2016)
Primary cutaneous (anaplastic) CD30+ large cell lymphoma (Last Updated: 22/08/2013)
Primary cutaneous B-cell lymphoma (Last Updated: 22/08/2013)
Primary cutaneous CD30+ lymphoproliferative disorders (Last Updated: 22/08/2013)
Primary cutaneous T-cell lymphoma (Last Updated: 22/08/2013)
Progressive macular hypomelanosis (Last Updated: 04/04/2016)
Progressive symmetric erythrokeratoderma (Last Updated: 26/11/2015)
Prurigo (Last Updated: 28/04/2017)
Pruritic Urticarial Papules and Plaques of Pregnancy (syn. PUPPP) (Last Updated: 20/11/2014)
Pruritus (without a rash) (Last Updated: 20/03/2017)
Pruritus ani (Last Updated: 19/01/2017)
Pseudofolliculitis (Last Updated: 24/08/2014)
Pseudomonal nail infection (Last Updated: 02/05/2016)
Pseudomonas folliculitis (syn. bathing suit folliculitis) (Last Updated: 27/11/2014)
Pseudopelade of Brocq (Last Updated: 17/12/2013)
Pseudoporphyria (Last Updated: 26/11/2014)
Pseudoxanthoma elasticum (syn. Gronblad-Strandberg syndrome) (Last Updated: 28/04/2017)
Psoriasis: an overview and chronic plaque psoriasis (Last Updated: 24/04/2017)
Psoriasis: childhood psoriasis (Last Updated: 26/11/2014)
Psoriasis: facial psoriasis (Last Updated: 26/11/2014)
Psoriasis: flexural and genital psoriasis (Last Updated: 16/03/2017)
Psoriasis: generalised pustular psoriasis (syn. von Zumbusch psoriasis) (Last Updated: 26/11/2014)
Psoriasis: guttate psoriasis (Last Updated: 26/11/2014)
Psoriasis: hyperkeratotic hand / foot psoriasis (Last Updated: 26/11/2014)
Psoriasis: nail psoriasis (Last Updated: 26/11/2014)
Psoriasis: palmoplantar pustulosis (Last Updated: 15/12/2016)
Psoriasis: psoriatic arthritis (Last Updated: 24/04/2017)
Psoriasis: scalp psoriasis (Last Updated: 24/04/2017)
Pubic lice (syn. pediculosis pubis) (Last Updated: 02/07/2015)
Pyoderma gangrenosum (Last Updated: 20/12/2016)
Pyogenic granuloma (Last Updated: 20/12/2016)

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