Tinea Amiantacea

Relationship of Pityriasis Amiantacea to Psoriasis

“…Because of the typical appearance, it was recognized as a clinical entity as early as almost 150 years ago [1], The etiology of PA is still obscure and has until recently attracted little interest [3,4,7,11]. Sometimes patients with the clinical picture of PA have a coexistent typical psoriasis on the rest of the body [2][3][4][5]11], A relationship to psoriasis has therefore been postulated but not confirmed.…”

Pityriasis amiantacea: a clinical and etiopathologic study of 85 patients

“…The cause of PA has puzzled dermatologists for decades and some attempts have been made to reveal a definitive etiology 1,3,5,6,10 . However these attempts were limited in number, conducted on a smaller number of patients, 2,6,7,9–12 or not inclusive of microbiological and histopathological examinations 1,10 . The vast majority of PA patients in the present investigation were subjected prospectively to concomitant microbiological and histopathological examinations, and the results indicate that PA represents a particular reaction pattern of the scalp to various inflammatory scalp diseases.…”

“…Although PA is commonly a localized condition, 2,12 more than half of our patients had widespread disease. This could be attributed to the relatively long disease duration before seeking dermatologic advice.…”

Pityriasis amiantacea : A reaction pattern of the scalp in psoriatic patient

“…Tinea amiantacea or pityriasis amiantacea (asbestos-like tinea) is a disease of scalp with heavy scales extend on to the hairs and separate and bind together their proximal portions. 1 The process may be only slightly inflammatory with dry silvery, micaceous scales, overlying like the tiles on a roof 1,2 , adhere to the scalp or markedly inflammatory with admixture of crusts. 1 According to the Alibert, inventor of the name of the condition, there is an early moist stage, followed by drier one.…”

“…1 The process may be only slightly inflammatory with dry silvery, micaceous scales, overlying like the tiles on a roof 1,2 , adhere to the scalp or markedly inflammatory with admixture of crusts. 1 According to the Alibert, inventor of the name of the condition, there is an early moist stage, followed by drier one. 1 Removal of this scales reveals erythematous, edematous epidermis.…”