Posts tagged James Nevins Hyde

Naevus Lipomatodes Related to the “port-wine stain”-type birthmark. Can be present at birth or develop before age 20, and sometimes grows significantly (like other naevii). This birthmark doesn’t actually affect the epidermis on a histological level like many do - it’s just an accumulation of adipocytes directly under the skin, among the dermal collagen. Sometimes it’s encapsulated, sometimes it’s connected to subcutaneous fat, but either way, if it’s removed, it isn’t known to recur. Interestingly, the first descriptions of this condition aren’t considered to have been written until 1921, even though this book (from 1909) both illustrates it and refers to it with the same name and presentation as it’s known today. However, the book doesn’t include a description of clinical etiology of the condition, despite including similar conditions, such as naevus pigmentosum and naevus pilaris. A Practical Treatise on Diseases of the Skin. James Nevins Hyde, 1909.

Naevus Lipomatodes

Related to the “port-wine stain”-type birthmark. Can be present at birth or develop before age 20, and sometimes grows significantly (like other naevii).

This birthmark doesn’t actually affect the epidermis on a histological level like many do - it’s just an accumulation of adipocytes directly under the skin, among the dermal collagen. Sometimes it’s encapsulated, sometimes it’s connected to subcutaneous fat, but either way, if it’s removed, it isn’t known to recur.

Interestingly, the first descriptions of this condition aren’t considered to have been written until 1921, even though this book (from 1909) both illustrates it and refers to it with the same name and presentation as it’s known today. However, the book doesn’t include a description of clinical etiology of the condition, despite including similar conditions, such as naevus pigmentosum and naevus pilaris.

A Practical Treatise on Diseases of the Skin. James Nevins Hyde, 1909.

Xeroderma Pigmentosum. This recessive genetic condition comes in many forms and severities, but at its core, it’s a decreased or absent ability of the body to repair UV damage to cells. This causes basal-cell carcinomas and pervasive cancers all over the body, since the damaged cells are not prevented from multiplying like they should have been. Until relatively recently, nearly all XP sufferers died before the age of 20. These days, UV-proof windows, avoidance of fluorescent lightbulbs, and sun-suits for the necessary journeys outside can extend the life of even those with the most severe forms of XP. Even so, kids like this live in a world largely isolated from their peers. Those that have the opportunity to attend a “normal” school and have play-dates with those without XP (such as Paris Feltner) are the exception, rather than the rule. Nevertheless, the outlook for those affected these days is far more optimistic than this gal from the turn of the century. A Practical Treatise on Diseases of the Skin for use by Students and Practitioners. Dr. James Nevins Hyde, 1909.

Xeroderma Pigmentosum.

This recessive genetic condition comes in many forms and severities, but at its core, it’s a decreased or absent ability of the body to repair UV damage to cells. This causes basal-cell carcinomas and pervasive cancers all over the body, since the damaged cells are not prevented from multiplying like they should have been. Until relatively recently, nearly all XP sufferers died before the age of 20.

These days, UV-proof windows, avoidance of fluorescent lightbulbs, and sun-suits for the necessary journeys outside can extend the life of even those with the most severe forms of XP. Even so, kids like this live in a world largely isolated from their peers. Those that have the opportunity to attend a “normal” school and have play-dates with those without XP (such as Paris Feltner) are the exception, rather than the rule.

Nevertheless, the outlook for those affected these days is far more optimistic than this gal from the turn of the century.

A Practical Treatise on Diseases of the Skin for use by Students and Practitioners. Dr. James Nevins Hyde, 1909.

Dermatographia [dermatographic uticaria]. About 4-5% of the population have what’s commonly known as “skin writing”. The root causes aren’t fully known (though it’s suspected to have multiple causes, including nutritional problems and stress reactions), but it occurs when the skin has an allergic-type reaction to any form of scratching or rubbing of the skin, even though it’s not reacting to any antigens. The affected area is generally itchy or somewhat burning, but not very painful. The condition also does not cause a generalized allergic reaction, except for in about 50% of first outbreaks (reasons for that are unknown).  Swelling and redness generally disappear within 15-30 minutes, but sometimes last for hours. A Practical Treatise on Diseases of the Skin. James Nevins Hyde, 1909.

Dermatographia [dermatographic uticaria].

About 4-5% of the population have what’s commonly known as “skin writing”. The root causes aren’t fully known (though it’s suspected to have multiple causes, including nutritional problems and stress reactions), but it occurs when the skin has an allergic-type reaction to any form of scratching or rubbing of the skin, even though it’s not reacting to any antigens. The affected area is generally itchy or somewhat burning, but not very painful. The condition also does not cause a generalized allergic reaction, except for in about 50% of first outbreaks (reasons for that are unknown). 

Swelling and redness generally disappear within 15-30 minutes, but sometimes last for hours.

A Practical Treatise on Diseases of the Skin. James Nevins Hyde, 1909.

Fear not that you have papular syphiloderm, good sir! Your fantastical moustache will will transfix people more than enough to distract from it! A Practical Treatise on Diseases of the Skin for use by Students and Practitioners. Dr. James Nevins Hyde

Fear not that you have papular syphiloderm, good sir! Your fantastical moustache will will transfix people more than enough to distract from it!

A Practical Treatise on Diseases of the Skin for use by Students and Practitioners. Dr. James Nevins Hyde