Nikolay Sheklakov

Nikolay-Dmitriyevich-Sheklakov 1918-1989

Nikolay Dmitriyevich Sheklakov Николай Дмитриевич Шеклаков (1918-1989) was a medical mycologist and dermatologist

A hero of Great Patriotic War and European anti-nazi resistance, humanist who saved thousand lives in Sachsenhausen and Bergen-Belsen German deathcamps, where he was revered as ‘Doctor Nicolaus’. After WW2, he became one of the leaders of Soviet medical mycology and international peace activist.

Author of more than 300 works devoted to the clinic, prevention and treatment of skin diseases. He investigated aspects of bullous dermatoses, issues of medical mycology. He was the first in Soviet dermatology to develop a clinical classification of mycoses. Sheklakov published in Russian several works in which he suggested modifications of the classic Nikolskiy sign

  • Born on March 10, 1918 in Aleksin
  • 1937 – Graduated from рабфак and trasnferred to 2-й Московский государственный медицинский институт (2nd Moscow State Medical Institute)
  • 1941 – Chief of the medical aid station of the 4th battalion of the 214th Airborne Brigade
  • 1945 – Центрального кожно-венерологического ин-та Наркомата здравоохранения СССР (Central Dermatovenerological Institute of the People’s Commissariat of Health), graduating in 1950
  • 1967 – Doctor of Medical Sciences (доктор медицинских наук)
  • 1970 – Professor and Chairman of the Department of Dermatology and Venereology at the Moscow School of Dentistry, Moscow, Russia
  • 1973-1989 Editor-in-chief of the journal Вестник дерматологии и венерологии (Bulletin of Dermatology and Venereology)
  • Died on July 13, 1990 in Moscow

Medical Eponyms
Sheklakov sign

Sheklakov described the sign of perifocal subepidermal separation (“false Nikolskiy sign”) which is known as “Sheklakov sign”

In contrast to the true Nikolsky sign, The Sheklakov sign is where perifocal subepidermal separation is induced at the periphery of blisters. It is performed by pulling the peripheral remnant blister roof, thereby inducing the erosions to extend to adjacent normal skin. These erosions are limited in size, do not exhibit spontaneous extension and heal relatively quickly. 

Sheklakov also modified the classic description of Nikolskiy sign and introduced the term “marginal Nikolskiy sign”. This involves application of lateral pressure to a pre-existing bullous lesion using a cotton-tipped swab, tongue depressor, or a pencil eraser, leading to lateral extension of the bulla.

He also showed the ability to elicit the Nikolskiy sign in the oral mucosa of patients with pemphigus vulgaris.

Major Publications



Eponymous terms


BSc, MD from University of Western Australia. Junior Doctor currently working at Sir Charles Gairdner Hospital.

BA MA (Oxon) MBChB (Edin) FACEM FFSEM. Emergency physician, Sir Charles Gairdner Hospital.  Passion for rugby; medical history; medical education; and asynchronous learning #FOAMed evangelist. Co-founder and CTO of Life in the Fast lane | Eponyms | Books | Twitter |

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