Botryomycoma or pyococcus granuloma
Venereology / / August 12, 2017
Streptococcal skin lesions
botryomycoma first described in 1897 by Ponce and Dor, who believed that this defeat is similar botriomikozu, developing horses after castration.Further examination of the matter showed that people botryomycoma nothing to botriomikozu horse does and is one of the many varieties piodermicheskogo process.
the most part, on the site of a skin injury occurs rapidly growing and increasingly as if sitting on a stem tumor the size of a pea to a cherry and more red or brownish-red, easily bleeding and usually produces vascular impression.Often in the form botryomycoma resembles a mushroom.In the future, partially ulcerated tumor, separating purulent bloody secret;sometimes its surface becomes lush or, conversely, chapped.Localized botryomycoma mostly on the hands and feet, lips, nose, cheeks, and others. Botryomycoma may exist for a long time, if not taken care.
Etiology and pathogenesis
All forms of chronic deep pyoderma caused by staphylococci or streptococci, in some cases, b
Histopathology For the chronic ulcer and vegetating pyoderma characterized by the presence in the skin along with the usual inflammatory infiltrate granulomatous changes, and histology largely depend on the duration of the rash.Initially there are only changes in the dermis, and then joined by the change and the epidermis, and in some cases may form psevdoepiteliomatoznye proliferation.Vessels expanded around them, especially around the pilosebaceous apparatus, concentrated cell infiltration of various compositions, for example, it is almost entirely composed of plasma cells, follicles at dekalviruyuschem sycosiform uleriteme - of lymphocytes, with follicles and perifolliculitis Hoffmann - from single and multi-coreleukocytes and so. n.
differential diagnosis of certain forms of chronic deep pyoderma is not usually any difficulty, of course, if the doctor is well familiar with the matter.This applies to such forms as konglobata acne keloid acne, folliculitis and perifolliculitis Hoffmann dekalviruyuschy folliculitis, pyococcus chronic ulcer, botryomycoma.Much greater difficulties are common in cases of peptic ulcer and vegetating pyoderma because the individual lesions in this form often resemble tuberculous lesions, and sometimes syphilitic blastomikoticheskie.