case_images: PMC9946905_01
case_images: Bullae (on right forearm; top left), granulation tissues (on left ankle; top right), rashes (on back; bottom left), and several vesicles (bottom right).
case_images: cureus-0015-00000034117-i01.jpg
case_images: PMC9946905_01_cureus-0015-00000034117-i01.jpg
case_images: FIG1
case_images: On physical examination, several vesicles, bullae, rashes, and granulation tissues on the face, arms, trunk, legs, and ankles were documented (Figure 1).
case_images: Histopathological slide (haematoxylin and eosin stain) showing clefting and blister formation at the junction of dermis and epidermis.
case_images: cureus-0015-00000034117-i02.jpg
case_images: PMC9946905_01_cureus-0015-00000034117-i02.jpg
case_images: FIG2
case_images: The roof of the blister comprised a full-thickness epidermis (Figure 2).
case_images: Direct immunofluorescence mapping with fluorescence antisera against type IV collagen (localized on the basal lamina) indicates a positive linear immunofluorescence at the base of the blister (arrow).
case_images: cureus-0015-00000034117-i03.jpg
case_images: PMC9946905_01_cureus-0015-00000034117-i03.jpg
case_images: FIG3
case_images: This allocation of type IV collagen in the blister shows a junctional cleavage (Figure 3).