Alopecia syphilitica diffusa

Alopecia syphilitica with detection of Treponema pallidum in the hair follicle.

Alopecia is one of the clinical manifestations of secondary syphilis. It is uncommon for hair loss to be the sole or predominant manifestation, as hair loss is the chief clinical and histologic differential diagnosis of alopecia areata. The main difference between these two entities is the detection of Treponema pallidum in syphilis. We present the case of a 24-year-old Hispanic man, human immu...

HIV-Associated Vitiligo Totalis with Minimal Repigmentation and Alopecia Areata Diffusa During Immune-Reconstitution

Background: Cutaneous findings in the setting of HIV infection encompass a broad spectrum of diseases. Only few cases of vitiligo or alopecia areata have been described in HIV/AIDS patients and it remains unclear whether there is a causal relationship between HIV/AIDS and these two conditions. Observations: Our patient initially presented with diffuse generalized pruritic hypoand depigmented ma...

Aerial organ anatomy of Smilax syphilitica (Smilacaceae).

Smilax L. in Brazil is represented by 32 taxa and it is a taxonomically difficult genus because the plants are dioecious and show wide phenotypic variation. The analysis and use of leaf anatomy characters is recognized as a frequently successful taxonomic method to distinguish between individual taxon, when floral material is absent or minute differences in flowers and foliage exist such as in ...

Placenta diffusa percreta.

Introduction Placenta diffusa though natural in sow and mare is a rare poss1bility in human beings, if the usual differentiation of the chorion into chorion frondosum and chorion leave does no t take place (Brews, 1957). Novak and Woodruff (1967) use the term placenta membranacea almost synonymously. The occurrence of this anomaly is attributed to defective decidua allowing deep implantation of...

Alopecia.