Phosphoridrosis is a rare condition, in which the sweat is phosphorescent. It has been observed in the later stages of phthisis, in miliaria, and in those who have eaten of putrid fish.
Seborrhœa (Eczema Seborrhoicum).
Synonyms: (Steatorrhœa; Acne sebacea; Ichthyosis sebacea; Dandruff.)
What is seborrhœa?
Seborrhœa is a disease of the sebaceous glands, characterized by an excessive and abnormal secretion of sebaceous matter, appearing on the skin as an oily coating, crusts, or scales.
In many cases the sweat-glands are likewise implicated, and the process may also be distinctly, although usually mildly, inflammatory.
At what age is seborrhœa usually observed?
Between fifteen and forty. It may, however, occur at any age.
Name the parts most commonly affected.
The scalp, face, and (less frequently) the sternal and interscapular regions of the trunk. It is sometimes seen on other parts.