Tsukayama's Comedo Collection

A.Tsukayama

Update: October 8, 2021

Researchers are free to use the data in this collection for the study or academic purposes. Use for commercial purposes is not allowed.

Collection

Abbreviations

  • H: head of a comedo.
  • C: corpus of a comedo.
  • T: tail of a comedo.
  • *: sebum in the sebaceous duct.
  • S: sebum at the subcutis.

9

9

10

10

Image from a different angle of photo 9.

11

11

The sebum in the sebaceous ducts appears to open in the infundibulum, isthmus and inferior segment of the hair follicle.

12

12

13

13

Image from opposite angle of Photo 12.

14

14

15

15

A well-developed and sausage-like sebum in the sebaceous duct has a peculiarly shaped root and is connected to the small comedo within a vellus or sebaceous follicle less than about 0.5 mm deep.

16

16

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