1964 Madsen

 
Studies on the "bulge" (Wulst) in superficial basal cell epitheliomas. Arch Dermatol. 1964;89:698-708 (Fig. 11).

View Figure  		Fig. 11  [Fig. la] Models of bulge-follicles: (1) enlarged infundibulum, (2) eccentric thickening of the follicle wall, (3) bulge. (4) "collar" and pedicle connected with the bulk of bulge, (5) hair root. (Reproduced with permission.)
 

Message

 
Digitiform or club-shaped epithelial pegs that arise along the circumference of the outer sheath make up "the bulge."
 

Critique

 
Unlike any previous author, Madsen states what we ourselves aver, namely, that the proliferations (bulges) are integral to a normal isthmus, without any implication of pathologic change.