Acquired ichthyosis secondary to lymphoma.
Atrophoderma vermiculatum the on the cheek of 10‐year‐old boy. (Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3163348/ from Apalla et al. J D...
(a,b) Trichodysplasia spinulosa: multiple keratotic spicules on the nose of a heart transplant recipient. (Reproduced from PLOS Pathogens http://j...
Porokeratosis of Mibelli.
Disseminated superficial actinic porokeratosis: view of upper arm.
Diabetic bullae: recent development of extensive large bullae on the lower legs and feet in the absence of inflammation or oedema in a patient with lo...
(a–c) Typical acanthosis nigricans in an obese 41‐year‐old man of South Asian descent with type II diabetes. Note associated striae and skin tags in t...
Keratosis pilaris on the extensor aspect of the upper arm.
Lichen spinulosus present for 18 months as an asymptomatic eruption on the back, shoulder and upper arm of an 8‐year‐old girl.
Flegel disease: multiple tiny thorn‐like keratotic papules on the skin of the lower leg.
Linear porokeratosis: irregular linear and polygonal ‘Chinese character’ plaques developing in a blaschkoid distribution on the thigh, showing progres...
Transient acantholytic dermatosis: histopathological image of a papule demonstrating intraepidermal clefting and acantholytic cells (inset). (Reprodu...
(a,b) Asteatotic eczema.
Malignant acanthosis nigricans: warty thickening of the oral margins in a patient with carcinoma of the breast.
Erythromelanosis follicularis faciei et colli in a young Asian man.
Keratosis circumscripta: coalescing hyperkeratotic papules on the thighs of 10‐year‐old African American girl (a); psoriasiform dermatitis with promin...
Multiple minute digitate keratoses: photomicrograph of hyperkeratotic spicule (a); close‐up view of spicules on the back (b). (From Caccetta et al . ...
Genital porokeratosis: multiple lesions limited to the scrotum. (From Chen et al . 2006 [ ]. Reproduced with permission from the copyright holder Wi...
Transient acantholytic dermatosis: typical appearance on the abdomen. (Reproduced courtesy and with permission of Professor Luis Requena, Universidad...
Acute oedema blisters in an elderly female: acute swelling of the lower limbs after withdrawal of diuretic therapy given for congestive heart failure ...
(a,b) Confluent and reticulate papillomatosis: an asymptomatic rash appeared 6 months earlier around the neck of this of 12‐year‐old boy before spread...
Keratosis pilaris atrophicans faciei (ulerythema ophryogenes): note well‐defined symmetrical erythema on the cheeks and above sparse residual eyebrow ...
Phrynoderma: keratotic papules with intrafollicular plugging on extensor surfaces of the forearms of a 3‐year‐old Indian girl presenting with night bl...
Cornoid lamella forming edge of a porokeratosis: a column of parakeratotic keratinocytes can be seen arising from invagination of the underlying epide...
Perianal porokeratosis. (Courtesy of Dr P. Laws, Chapel Allerton Hospital, Leeds, UK.)
Keratolysis exfoliativa: view of the palms (a) with close‐up of right index finger (b).
(a–c) Eczéma craquelé following acute onset of oedema due to congestive heart failure.