Original Disease Descriptions - First Accounts

Introduction

This chapter preserves the original descriptions of skin diseases as first written by the physicians who identified them. These primary sources, drawn from medical literature spanning two centuries, represent the foundational observations upon which modern dermatology was built. Each entry includes the physician's biographical context and their verbatim description of the condition they first characterized.

Part I: Early Workers (1790-1850)

Robert Willan (1757-1812)

Biographical Note: Born in Yorkshire to a Quaker family, Willan received his medical education at Edinburgh. He spent twenty years at the Carey Street Public Dispensary in London, where he developed the first systematic morphological classification of skin diseases. Thomas Bateman described him as possessing "peculiar quickness with which he detected the characteristic appearance of diseases, however obscured by complication."

Lepra Vulgaris (Psoriasis)

"Lepra vulgaris at first exhibits small, distinct elevations of the cuticle which are reddish and shining, but never contain any fluid. Their surface, when examined through a magnifying glass, appears tense and smooth. Within 24 hours, however, thin white scales form on their tops. After three or four days the small elevations are flattened, and at the same time dilated by an extension of their bases to the size of a silver penny. These patches continue to enlarge gradually, till they become nearly the size of a crown piece. They always retain a circular or oval form, are covered with dry scales, and surrounded by a red border."

— On Cutaneous Diseases, 1808

Thomas Bateman (1778-1821)

Biographical Note: Bateman became Willan's pupil at the Carey Street Dispensary in 1801 and eventually his biographer and successor. He completed Willan's unfinished work in his Synopsis of Cutaneous Diseases (1813) and created the first dermatologic atlas, Delineations of Cutaneous Diseases (1814-1817).

Molluscum Contagiosum

"Molluscum is a tubercular disease characterized by encysted tumours, varying in size from a millet seed to that of a small cherry, containing an atheroma-like matter, that is, a thick curdy material... They are hemispherical in form, of a livid red colour, with a small central depression or umbilication at the summit."

— A Practical Synopsis of Cutaneous Diseases, 1813

Eczema

"Eczema, as the name imports, is an eruption of minute vesicles, crowded together on various parts of the skin, but not arranged either in circles or in regular patches, and terminating in thin scales. vesicles are extremely small; they have little or no inflammation at their base, and are filled with a pellucid fluid."

— A Practical Synopsis of Cutaneous Diseases, 1813

Jean Louis Alibert (1768-1837)

Biographical Note: Alibert was the founder of the French school at the Hôpital Saint-Louis in Paris. His Arbre des Dermatoses (Tree of Dermatoses) was a visually striking classification system, and his famous wax models of skin diseases set new standards for medical illustration.

Lupus Vulgaris

"lupus attacks the face, and especially the cheeks. It begins by a more or less considerable tubercle which is sometimes livid... wound made by this cruel affection is uneven, serrated, foul, bordered by a callous edge of a dark red colour, and discharging from its centre a very foetid sanies."

— Description des Maladies de la Peau, 1806

Keloid

"disease to which I have given the name cheloides, to indicate a resemblance to a claw of crab, is characterized by a fibro-cellular swelling which arises in the true skin, either spontaneously or in consequence of a preceding disease... Its density is extraordinary; it is more resistant to the scalpel than the most fibrous tumours."

— Clinique de l'Hôpital Saint-Louis, 1833

Mycosis Fungoides

"term mycosis fungoides has been applied by me to designate a peculiar state of vegetation of the skin...forming either irregular plaques elevated above the surrounding skin, or actual tumors, sometimes smooth like polished pebbles, sometimes irregular and rough like boiled truffles."

— Monographie des Dermatoses, 1832

Ernest Bazin (1807-1878)

Biographical Note: Bazin worked at the Hôpital Saint-Louis and was a pioneer in the understanding of scrofulous and tuberculous conditions. He was among the first to recognize scabies as caused by a mite and ringworm as caused by a fungus.

Erythema Induratum

"Erythema induratum, of a scrofulous nature, is not rare; it is characterized by red indurated plaques from which, with digital pressure, the redness disappears momentarily, soon to return. One feels an induration on the skin and in the skin which reaches more or less deeply into the subcutaneous cellular tissue. redness, which is more or less dark, quite often violaceous, and more marked in the center, blends insensibly at the periphery with the normal color of the skin. There is no itching in these plaques; digital pressure on them causes scarcely any pain. This affection is observed commonly on the legs, more often perhaps in females than in males."

— Leçons Théoriques et Cliniques sur la Scrofule, 1861

Hydroa Vacciniforme

"Hydroa vacciniforme has not been described by other authors... Hydroa vacciniforme appears following a walk in the open air, or after exposure to the hot sun. There is a little malaise and anorexia; the eruption appears first on the exposed surfaces, then on the other parts of the body. buccal mucosa is also involved... One sees, at first, red spots on which transparent vesicles which resemble those observed in herpes soon appear. On the second day these vesicles which are rounded show a very evident umbilication."

— Leçons Théoriques et Cliniques, 1862

Thomas Addison (1793-1860)

Biographical Note: Although best remembered for his description of adrenal insufficiency (Addison's disease), Thomas Addison received early dermatologic training with Thomas Bateman and made significant contributions to cutaneous medicine at Guy's Hospital.

Xanthoma (Vitiligoidea)

"object of this communication is to call attention to a somewhat rare disease of the skin which presents itself under two forms: namely, either as tubercles, varying from the size of a pinhead to that of a large pea, isolated or confluent, or secondly, as yellowish patches of irregular outline, slightly elevated, and with but little hardness... tubercles are of a yellowish colour, mottled with a deepish rose tint, and with small capillary veins here and there ramifying over them."

— A Collection of the Published Writings of Thomas Addison, 1868

Morphea (Keloid of Addison)

"disease, when fully established, presents a remarkable appearance. It begins as one or more patches of a yellowish-white colour, surrounded by a lilac ring. patches are smooth, indurated, and closely adhere to the subjacent tissues. skin appears as if parchment had been substituted for the natural cutis."

— A Collection of the Published Writings of Thomas Addison, 1868

Camille Gibert (1797-1866)

Biographical Note: Gibert was a physician at the Hôpital Saint-Louis whose careful clinical observations led to several original descriptions that remain relevant today.

Pityriasis Rosea

"This is an eruption characterized by pinkish-yellow, oval-shaped, finely scaling patches, distributed chiefly on the trunk. A single larger patch, the 'herald patch,' usually precedes the general eruption by a week or two. eruption then appears in successive crops, the long axes of the oval patches following the lines of cleavage of the skin."

— Description from clinical lectures at Hôpital Saint-Louis

Part II: Disciples (1850-1880)

Ferdinand von Hebra (1816-1880)

Biographical Note: Hebra was the founder of the Vienna School and the greatest dermatologist of the nineteenth century. An observer described him as "a short thick-set man with dirty fingers and a dress a good deal the worse for wear," but his clinical acumen was unsurpassed. He developed the pathological-anatomical classification that superseded Willan's morphological system.

Erythema Multiforme

"I shall apply the name of Erythema multiforme to this malady. most striking character of this affection is its appearing on certain special parts of the body. Thus, in every instance, it is present on the dorsal surfaces of the hands or feet... efflorescence consists of flattened papules or tubercles of a dark blue or a brownish-red colour, and between lentils and beans in size. It appears, then, that the Erythema papulatum represents the lowest and the Erythema gyratum the highest grade in the development of this eruption. Hence, it will depend on the period at which the patient comes under medical observation, whether the case shall be diagnosed as an Erythema papulatum or as an E. annulare, or even as an E. gyratum."

— On Diseases of the Skin, translated 1866

Prurigo

"In every case the earliest appearance is that of subepidermic papules as big as hemp-seeds and recognized rather by touch than by sight, since they rise but little above the level of the skin, and do not differ from it at all in colour. They are always isolated and, though they may appear in all sorts of places, constantly have some regions unaffected. They produce great irritation and thus, from being scratched, soon rise somewhat above the surface and also sometimes become red. Continued scratching destroys the epidermis at the summit of the papules, and by this means either their contents come into view—sometimes a transparent and colourless, sometimes a yellowish serosity—or else a papilla of the corium is at last wounded, and from its capillary vessel a drop of blood escapes which dries into a black crust at the top of the papule."

— On Diseases of the Skin, translated 1868

Lichen Scrofulosorum

"characteristic symptom of this disease is an eruption of miliary papules, which may be either pale yellow, brownish-red or of the same colour as the rest of the skin. They never contain any fluid. They are always placed in groups and sometimes form circles or segments of circles within which may occasionally be seen a few pigmented spots, indicating the seat of former papules... Since all these conditions belong to the general state known under the name of scrofulosis, I am surely justified in applying the name of Lichen scrofulosorum to the cutaneous affection."

— On Diseases of the Skin, translated 1868

Erasmus Wilson (1809-1884)

Biographical Note: Wilson was the most prominent English dermatologist of his era. He made his fortune through popular health writings and used his wealth to bring Cleopatra's Needle to London. He founded the Chair of Dermatology at the Royal College of Surgeons.

Lichen Planus

"eruption is characterized by small, flat, angular, shining papules, presenting a peculiar lilac or violet tint. papules are slightly raised above the skin and have a polygonal outline. On their surface one may observe fine white lines or striae, arranged in a network pattern. disease is accompanied by intense itching."

— On Diseases of the Skin, 1867

James Paget (1814-1899)

Biographical Note: One of the most distinguished surgeons of the Victorian era, Paget served as surgeon to Queen Victoria. His careful observations led to descriptions of several conditions bearing his name.

Paget's Disease of the Nipple

"I believe it has not yet been published that certain chronic affections of the skin of the nipple and areola are very often followed by the formation of scirrhous cancer of the mammary gland... affection of the nipple and areola in these cases appeared to me like a florid, intensely red, raw surface, very finely granular, as if nearly the whole thickness of the epidermis were removed; and this surface appeared as if it were kept moist by an oozing of fluid, so thin and clear that it looked like mere moisture, such as might be produced by perspiration."

— St. Bartholomew's Hospital Reports, 1874

Part III: Golden Age (1880-1920)

Moritz Kaposi (1837-1902)

Biographical Note: Born Moritz Kohn in Hungary, Kaposi served as Hebra's assistant, married Hebra's daughter, and succeeded him as Professor at Vienna. He completed Hebra's unfinished textbook and described numerous conditions that bear his name.

Multiple Idiopathic Hemorrhagic Sarcoma (Kaposi's Sarcoma)

"Brownish red to bluish red nodules, corn or pea to hazel nut size, arise in the skin, without any known local or systemic cause. Their surface is smooth, their consistency firmly elastic, sometimes erectile, as in a hemangioma. They remain isolated, and when they enlarge project as domes; they may also group together and remain more flat... They regularly arise first on the soles and on the dorsa of the feet, soon thereafter on the hands, and are also developed in the greatest number on these parts... disease ends in death, and within the short space of time of two to three years."

— Archiv für Dermatologie und Syphilis, 1872

Xeroderma Pigmentosum

"By this name, I shall indicate a characteristic disease... skin of the face, ears, throat, neck, shoulders, arms, and of the breast exhibited a peculiar alteration. It was remarkable owing to its checkered appearance, for it appeared to be abundantly dotted over with pigmented spots of the size of pins' heads or of lentils, and of a yellowish-brown colour; it was also tightly stretched, as if contracted, was pinched up into a fold with difficulty, and felt very thin. Its surface was smooth in some places, whilst in others, fine epidermic lamellae peeled off... so that the surface appeared as dry as parchment."

— On Diseases of the Skin, translated 1874

Kaposi's Varicelliform Eruption

"As a very alarming complication of Eczema larvale infantum I have seen, in some cases, an acute eruption of vesicles which are numerous, partly disseminated, arranged in groups and clusters for the most part, lentil sized and somewhat larger, filled with clear serum, transparent, flat, and usually delled as well. Because of the picture described they give the impression of varicella lesions, but they certainly are not... little patients run a high fever, up to 40° and more, and are very restless."

— Pathologie und Therapie der Hautkrankheiten, 1887

Louis Duhring (1845-1913)

Biographical Note: Duhring was the founder of American dermatology, establishing the first dermatology department at the University of Pennsylvania. His work on dermatitis herpetiformis remains a classic of medical description.

Dermatitis Herpetiformis

"Dermatitis herpetiformis is a disease characterized by the occurrence of an eruption of an erythematous, vesicular, pustular, or bullous type, arranged more or less in groups, recurring after varying intervals, accompanied by unusual itching and burning, and running a chronic course. eruption commonly begins either as blebs or as erythematous, oedematous patches, upon which vesicles, pustules, or blebs form. disease in most instances commences on the back of the trunk and successively involves the limbs and other parts."

— Cutaneous Medicine, 1898

Jonathan Hutchinson (1828-1913)

Biographical Note: Hutchinson was an extraordinarily prolific physician who made contributions to virtually every branch of medicine. His clinical archives at the London Hospital were legendary.

Arsenical Keratosis

"patient presented numerous hard, horny, wart-like growths, principally on the palms of the hands and soles of the feet, but occurring also on other parts of the body. These keratoses developed gradually over a period of years during which the patient had been taking Fowler's solution for psoriasis. growths were firmly adherent to the underlying skin and could not be removed without causing bleeding."

— Clinical Archives

Paul Gerson Unna (1850-1929)

Biographical Note: Unna was the founder of dermatopathology. His laboratory in Hamburg trained generations of dermatologists, and his studies on the histopathology of skin diseases transformed the specialty.

Seborrheic Dermatitis

"Seborrheic dermatitis is a chronic inflammatory condition affecting the areas of the skin richest in sebaceous glands—the scalp, face, and central trunk. inflammation produces greasy scales which are yellowish in color and easily detached. When occurring on the scalp, it is the common 'dandruff' of lay parlance. On the face, it affects particularly the nasolabial folds, eyebrows, and the skin around and behind the ears."

— Die Histopathologie der Hautkrankheiten, 1894

Jean Darier (1856-1938)

Biographical Note: Darier succeeded Besnier at the Hôpital Saint-Louis and made numerous contributions to dermatology, particularly in the field of genetic skin diseases.

Darier's Disease (Keratosis Follicularis)

"This disease is characterized by the appearance of small, firm, greasy papules which are covered by a crust and are situated at the mouths of the hair follicles. When the crust is removed, a small pit remains. papules have a predilection for the seborrheic areas—the forehead, temples, nasolabial folds, and chest. They tend to coalesce into larger plaques which emit a disagreeable, foetid odor."

— Annales de Dermatologie et de Syphilographie, 1889

Part IV: Modern Era (1920-2000)

Walter Lever (1909-1992)

Biographical Note: Lever authored the definitive textbook of dermatopathology and made seminal contributions to the understanding of bullous diseases.

Bullous Pemphigoid

"Bullous pemphigoid is a chronic bullous disease occurring mainly in elderly persons and characterized by large, tense blisters arising on normal or erythematous skin. Unlike pemphigus, the blisters of pemphigoid are subepidermal in location and the disease generally has a more favorable prognosis."

— Histopathology of the Skin, 1949

Alan Lyell (1917-2007)

Biographical Note: Lyell was a Scottish dermatologist whose description of toxic epidermal necrolysis transformed understanding of drug reactions.

Toxic Epidermal Necrolysis

"condition is characterized by the abrupt onset of a scalding or burning sensation of the skin, followed rapidly by the development of widespread erythema and the formation of flaccid blisters. epidermis separates in sheets at the slightest pressure, leaving extensive raw, denuded areas resembling scalds. mortality is high."

— British Journal of Dermatology, 1956

Summary

This collection of original descriptions demonstrates the evolution of dermatological observation from the careful morphological studies of Willan through the pathological insights of Hebra and the histopathological precision of Unna. Each description represents a moment of clinical recognition—when a careful observer first distinguished a condition from the chaos of similar-appearing diseases.

These primary sources remain valuable not merely as historical artifacts but as models of clinical description. precision with which Willan described psoriasis, the clarity with which Hebra characterized erythema multiforme, and the completeness with which Kaposi portrayed his sarcoma continue to inform modern clinical practice.

Sources: Shelley WB, Crissey JT. Classics in Clinical Dermatology with Biographical Sketches, 50th Anniversary Edition, 2003.