Dermatopathology Cases

Image 1 Image 2 Image 3 Image 4 Case 36 A 32 year old Asian man presenting with a dome-shaped, crusted nodule (3 cm in diameter) on the scalp. Answer

Chromomycosis (Chromoblastomycosis) Visit: Pathology of Chromoblastomycosis(Chromomycosis) ; Visit: Dermatopathology site ; Visit: Infectious Disease Online . Abstract: Difficult mycoses of the skin: advances in the epidemiology and management of eumycetoma, phaeohyphomycosis and chromoblastomycosis.Curr Opin Infect Dis. 2009 Dec;22(6):559-63. PURPOSE OF REVIEW: Eumycetoma, phaeohyphomycosis and chromoblastomycosis are subcutaneous mycoses having in common the fact that they are acquired as a result of penetrating trauma to the skin and may be caused by a large variety of fungi. This article will review recent data regarding the epidemiology and treatment of these infections. RECENT FINDINGS: Recent epidemiologic observations in these mycoses include an increased incidence of phaeohyphomycosis in immunosuppressed patients, the association of polymorphisms in genes involved in innate immunity, the occurrence of eumycetoma caused by Madurella mycetomatis and the nosocomial acquisition of

Image 1 Image 2 Image 3 Image 4 Case 35 A 42 year male with a verrucous, warty plaque in the distal part of the left extremity. Answer

Bacillary Angiomatosis Visit: Pathology of bacillary angiomatosis Visit: Dermatopathology site Visit: Pathology of Vascular Tumours Abstracts: Bartonellosis. Clin Dermatol. 2009 May-Jun;27(3):271-80. Bartonella spp are fastidious bacteria that occur in the blood of man and mammals; they are usually vector borne but can also be transmitted by animal scratches and bites. The bartonelloses of medical importance comprise Carrión's disease, trench fever, cat-scratch disease, bacillary angiomatosis, and peliosis hepatis. Carrión's disease, known as Oroya fever in the acute phase and verruga peruana (Peruvian wart) in its chronic form, has curious manifestations that,until recently, have been restricted in their geographic distribution to dwellers of the high, dry Andean valleys, but new sites of disease are emerging. Trench fever is associated with louse-borne disease and homelessness. Cat-scratch disease, bacillary angiomatosis, and peliosis hepatis are increasingly being recognize

Image1 Image2 Case 34 A 36 year old HIV- positive woman presenting with multiple red papules all over her body. Answer