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Amyand's hernia.

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Appendicitis↗

Beyond the Trendelenburg position: Friedrich Trendelenburg's life and surgical contributions.

Friedrich Trendelenburg (1844-1924) was a giant figure in the formative years of modern surgical practice. His name lives on in the Trendelenburg position, a pelvis-up, head-down position that is of great use in surgical practice. That position, however, was certainly well known before Trendelenburg and the linkage of his name was by no means the greatest of Trendelenburg's achievements. Trendelenburg was a world class surgeon, innovator, and educator who made novel advances that spanned the entire range of surgical practice.

Eponyms↗

George Huntington (1850-1916) and hereditary chorea.

Although Huntington's disease has existed since at least the seventeenth century, and although several physicians provided earlier descriptions of hereditary chorea, Huntington's disease was not generally recognized until the classic description by George Huntington (1850-1916) in 1872. This paper--on the sesquicentennial of Huntington's birth--reviews Huntington's original and later contributions to the description of this disorder, his professional presentations and correspondence on the topic, and his publications, as well as his background, medical training, and clinical practice. The characteristics of Huntington's disease recognized by George Huntington in 1872--i.e., the distinct clinical profile, midlife onset, and autosomal dominant inheritance pattern--made the disease ideal for investigation by genetic linkage analysis a century after Huntington's description. Subsequent breakthroughs have identified the genetic defect as an unstable expanded CAG trinucleotide repeat mutation in a novel gene on the short arm of chromosome 4. The rapidity of recent discoveries bodes well for further significant progress in understanding, and hopefully treating, this profoundly debilitating neurodegenerative disorder.

Disease Progression↗

Friedrich Heinrich Lewy (1885-1950) and his work.

In 1912, Friedrich Heinrich Lewy first described the inclusion bodies named after him and seen in paralysis agitans (p.a.). Tretiakoff had found (1919) that the nucleus niger is most likely to be affected but in a subsequent large-scale series of post-mortem examinations (1923). Lewy was able to confirm this for a minority of cases only, with the exception of those that displayed postencephalitic Parkinsonism (and an unknown number of atypical Parkinson syndrome cases not identified until the 1960s). In a speculative paper (1932), he saw similarities between inclusion bodies in p.a. and viral diseases like lyssa and postulated a viral genesis of p.a. In a historical review of basal ganglia diseases (1942), he did not mention the putative significance of the inclusion bodies for the post-mortem diagnosis. It seems that their importance was seen only after Lewy's death, long after Tretiakoff's initial naming of the 'corps de Lewy'. Lewy, however, had already described their diffuse and cortical distribution (1923). An identification of diffuse Lewy body disease or dementia followed much later. Lewy's career in many diverse branches of neurology and internal medicine was strongly affected by World War I and the difficult situation faced by Jews in Germany. Shortly after the Neurological Institute was founded in Berlin in 1932 (as a clinic and research institute), he was forced, in 1933, to emigrate. His exile in England and the United States mirrors the fate of many German Jews and academics in the first half of the 20th century.

Eponyms↗

Armand Trousseau--some of his contributions to neurology.

Trousseau made a remarkably large number of original clinical contributions to medicine and neurology. Best known are Trousseau's syndrome, the combination of venous thrombosis with visceral carcinoma; tache cérébrale, the red streak seen on scratching the skin in acute meningitis; and Trousseau's sign, the cardinal physical sign in tetany. His pioneering work in tracheostomy in diphtheria, haemochromatosis, Parkinson's disease, aphasia and chorea are but a few of his outstanding clinical studies. Based on his famously comprehensive text, Clinique Médicale de l'Hôtel Dieu, this paper highlights a few of his discoveries. The name of Armand Trousseau must stand alongside those of Charcot, Oppenheim, Jackson and Gowers in the annals of neurology.

Eponyms↗