BACKGROUND Alopecia areata is a common cause of hair loss seen in 3.8% of patients in dermatology clinics and in 0.2% to 2.0% of the general US population. The pathology of the disease remains poorly understood. Hair loss in alopecia areata can range from a single patch to 100% loss of body hair. When hair regrowth occurs in alopecia areata, the new hair may demonstrate pigment alterations, but...

Amyloidosis is a systemic illness characterized by the extracellular deposition of abnormal proteins in body tissues and organs. In addition to renal involvement, amyloidosis can also present with a variety of skin manifestations, though rarely with alopecia. Sixteen cases of alopecia secondary to systemic amyloidosis are reported. There is one reported case that presented with alopecia univers...

Civilizational progress initially contributes to the problem of hair loss and then to alopecia as regards both frequency and therapeutic dilemmas. The work presents trichological problems which occur more rarely, i.e. drug-induced, anagen and telogen alopecia, congenital and acquired structural hair disorders, psychic disturbances concerning the hair as well as the hair during menopause. Then, ...

Trichobezoar is a rare gastrointestinal pathology, but should be considered in patients with abdominal mass and previous history of trichophagia. In physical examination, it is important to verify signs of alopecia. Minimally invasive surgery is a secure method to remove the specimen from the stomach.

Androgenetic Alopecia (AGA) is the most common noncicatricial alopecia that leads to the progressive miniaturization of the hair follicle. Scalp terminal hairs are converted into vellus hairs, primarily due to two factors: genetic predisposition and hormonal stimulation. The incidence and prevalence of AGA increases with age. The onset of AGA is gradual, and when this pathology progresses, the ...

Focally extensive alopecia affecting the distal limbs is a common clinical finding in rhesus macaque (Macaca mulatta) colonies and is both a regulatory and colony-health concern. We performed diagnostic examinations including physical exams, bloodwork, skin scrapes, surface cytology, and surface bacterial-fungal cultures on 17 rhesus macaques with this presentation of alopecia. Skin biopsies fr...

f.r.c.s. Eng.; Medical Officer, Christs Hospital, London. Fourth Edition, 8vo. Pp. 327. Price 10s. 6d (H. K. Lewis, London.) This valuable monograph, on a subject of the first importance to Medical Officers of large Schools as well as to the general practitioner, has been entirely rewritten in the light of the latest available knowledge of the parasitology of the subject. Its bulk has grown con...

Frontal fibrosing alopecia (FFA) is a scarring alopecia whose incidence is increasing significantly in our country. It is characterized by loss of frontotemporal hairline that mostly affects postmenopausal women, with a negative impact on quality of life. It is associated with early menopause in 14% of cases and hypothyroidism in 15%. With regard to treatment, 5α-reductase inhibitors are the dr...