1993 Headington

 
Telogen effluvium. Arch Dermatol. 1993;129:356-63 (Fig. 20).

View Figure
 
Fig. 20  [Fig. 6] Moderate telogen effluvium. Horizontal sections of scalp at middermal level. Both terminal follicles are in telogen. Follicle A is in undifferentiated late telogen. Follicle B is in a post-club hair configuration and contains remnants of outer sheath keratins (hematoxylin-eosin, x80). (Reproduced with permission.)
 

Message

 
None regarding the bulge.
 

Critique

 
The photomicrograph shows that follicle "A," rather than being "undifferentiated late telogen," actually displays bulges of the isthmus viewed in cross section.