
Jean-Alexandre Barré
Jean-Alexandre Barré (1880–1967). French neurologist ; co-described Guillain–Barré syndrome; pioneer in vestibular neurology and semiology; eponyms include Barré test and Barré–Liéou syndrome.

Jean-Alexandre Barré (1880–1967). French neurologist ; co-described Guillain–Barré syndrome; pioneer in vestibular neurology and semiology; eponyms include Barré test and Barré–Liéou syndrome.

William Halsted (1852–1922), pioneering American surgeon, revolutionized surgery with aseptic technique, anesthesia, gloves, and the residency training model.

Meigs syndrome: Triad of ascites with hydrothorax in association with benign ovarian tumor, that is cured after tumor resection. Described in 1934 by Joe Vincent Meigs (1892-1963)

Joe Vincent Meigs (1892-1963) American gynaecologic oncology. Meigs syndrome, radical hysterectomy innovations and validation of Pap smear screening.

Swiss ophthalmologist Johann Friedrich Horner (1831–1886), eponym of Horner's syndrome, advanced ophthalmic surgery and neuroanatomical diagnostics

Chilaiditi sign: rare condition with bowel loops interposed between liver and diaphragm, with symptoms (syndrome). Must differentiate from free air.

Demetrius Chilaiditi (1883–1975) Austrian born radiologist. Described Chilaiditi sign (1910); details of his life remain largely undocumented.

Saint’s Triad: coexistence of hiatal hernia, colonic diverticulosis, and gallstones—now linked to connective tissue disorders like herniosis.

Charles FM Saint (1886–1973), pioneer of South African surgery, identified Saint’s triad and shaped generations through surgical teaching and aphorisms.

Horner syndrome is associated with an interruption to the sympathetic nerve supply of the eye. It is characterized by the classic triad of miosis, partial ptosis, and anhidrosis +/- enophthalmos
Hickam’s Dictum reminds clinicians that patients may have multiple diseases, challenging Occam’s Razor in diagnostic reasoning and medical education.

John B. Hickam (1914–1970), physician and educator, led IU’s Dept of Medicine and inspired “Hickam’s dictum” challenging diagnostic simplicity.