Basal cell carcinomas were observed in six patients within the area of erythrosis interfollicularis colli, but only one tumor was localized in the area of cutis rhomboidalis nuchae. Areas affected by erythrosis interfollicularis colli exhibited a 5.88-times greater relative risk for basal cell carcinomas compared to cutis rhomboidalis nuchae.
Erythrosis interfollicularis colli and cutis rhomboidalis nuchae are two skin diseases associated with chronic exposure to sunlight and are more frequent with increasing age.
Caption: The classic distribution of acne keloidalis nuchae, as seen here, is at the nape of the neck.
Caption: Acne keloidalis nuchae involves fibrotic, follicular papules on the nape of the neck and occipital scalp.
Treatment of acne keloidalis nuchae
is often difficult.
In particular, the marks of the muscle insertions at the back of the head (planum nuchae
) and the angles of the lower jaw and the os zygomaticum revealed only minor differences in the median values.
Differential diagnosis of EPS includes acne keloidalis nuchae
, porokeratosis of Mibelli, actinic granuloma, dermatophyte infections, and cutaneous larva migrans.
Amongst the less frequent causes, systemic lupus erythematosus (SLE) was seen in 5% cases followed by scleroderma, dermatomyositis, keratosis follicularis spinulosa decalvans (Figure 3), aplasia cutis, kerion, follicular mucinosis, pemphigus, dissecting cellulitis of scalp/ pyogenic folliculitis (Figure 4) and acne keloidalis nuchae
in 2.5% cases each.
* Acne keloidalis nuchae
is also a scarring alopecia.
Females of Onchocerca cervicalis occur in the ligamentum nuchae
of horses and mules.
Ance keloidalis, also known as folliculitis nuchae
, is a form of chronic scarring folliculitis characterized by fibrotic papules and nodules of the neck and the occipital area.
Moreover, men of color are prone to develop acne keloidalis nuchae
, which is characterized by red, painful bumps on the scalp.