Posts By: Curt Samlaska

PLEVA: Pityriasis Lichenoides et Varioliformis Acuta…

Posted by & filed under PLEVA.

Pityriasis Lichenoides et Varioliformis Acuta (PLEVA) is also known as Mucha-Habermann disease.  The eruption often appears suddenly in children and young adults.  At onset the lesions are erythematous macules, papules or papulovesicles, which tend to be brownish red in color, ranging from 5-15 mm in size and evolve through stages of crusting, necrosis and varioliform… Read more »

Molluscum Contagiosum: Water Warts…

Posted by & filed under Molluscum Contagiosum.

Molluscum Contagiosum (MC) is caused by four closely related poxvirus types, referred to as MCV-1 through MCV-4.  It is a worldwide infection that occurs mostly in children.  They have also been referred to as Water Warts.  There are two other classifications, 1) sexually transmitted form and 2) immunocompromised patients, most commonly HIV patients.  In children… Read more »

Elephantiasis Verrucosa Nostra: Mossy foot…

Posted by & filed under Elephantiasis Verrucosa Nostra.

In 1933, Sir Aldo Castellani presented a paper suggesting using the term Elephantiasis Verrucosa Nostra (EVN) to indicate nonfiliarial forms of elephantiasis.  He suggested that the term should be used in a “very relaxed way” to denote all kinds of conditions of different etiology including elephantoid conditions due to climatic bubo, syphilis, tuberculosis and tumors. … Read more »

Eccrine Hidrocystomas: Dilated Sweat Duct or Gland…

Posted by & filed under Eccrine Hidrocystomas.

Hidrocystomas are rare, benign, watery or fluid filled cystic proliferations of the skin.  There are Apocrine and Eccrine sources of Hidrocystomas (EH).  Apocrine Hidrocystomas are cysts that often have multiple locations and demonstrate Apocrine differentiation on histology.  EH are more likely to be unilocular and are comprised of dilated sweat glands or ducts rather than… Read more »

Granuloma Annulare: Palisaded Granulomatous Dermatoses…

Posted by & filed under Granuloma Annulare.

Granuloma Annulare (GA) is a common idiopathic disorder of the dermis and subcutaneous tissues.  Some authors refer to it as Palisaded Granulomatous Dermatoses to encompass the many variants which include localized (most common), generalized, patch-type or macular, subcutaneous and perforating granuloma annulare.  It may occur in all races and at any age but affects women… Read more »

Lichen Sclerosus: Lichen Sclerosus et Atrophicus, Kraurosis Vulvae, Balanitis Xerotica Obliterans…

Posted by & filed under Lichen Sclerosus, Uncategorized.

Lichen Sclerosis (LS), also known as Lichen Sclerosis et Atrophicus, is a common chronic skin disorder that most often affects the genital and perianal areas.  Genital involvement is referred to as Kraurosis Vulvae in women and Balanitis Xerotica Obliterans in men.  LS can present present in childhood to old age.  Although it occurs in all… Read more »

Miliaria Rubra: Heat Rash, Prickly Heat…

Posted by & filed under Miliaria.

Miliaria Rubra is also known as Heat Rash and Prickly Heat.  It is the most common form of miliaria and is seen in children and up to 30% of adults who move to a tropical environment or are exposed to sudden changes in heat and humidity.  It often takes several months to peak after the… Read more »

Miliaria Crystallina: Sudamina…

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Miliaria Crystallina is also known as Sudamina.  Miliaria is a common skin disease caused by blockage and/or inflammation of eccrine sweat ducts.  Miliaria Crystallina more specifically is due to obstruction of the sweat ducts close to the surface of the skin in the stratum corneum of the epidermis.  The lesions are characterized by small, clear,… Read more »

Lichen Nitidus: The Ball and Claw…

Posted by & filed under Lichen Nitidus.

Lichen Nitidus was first described by Pinkus in 1901.  It is an uncommon, chronic, papulosquamous eruption characterized by multiple, 1-2 mm, flesh-colored, shiny, dome-shaped papules.  Children and young adults are primarily affected.  Pruritus is usually minimal or absent but may be more prominent in more generalized cases.  Linear arrays of papules referred to as Koebner… Read more »