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  Indian J Med Microbiol
 

Figure 2: (a) In-vivo appearance of pediculosis capitis with nits in different stages of maturation/degeneration – active/viable (red circled) containing eggs closed with a tough porous operculum, non-viable nit with dead nymph or post-hatching of the nymph, with open operculum (light-blue circled), and empty nit with only air filled shell (yellow circled). Also appreciate 'pseudonits' most commonly seen as dandruff flakes (inside green rectangles), which are of bizarre-shape, and non-adherent to the hair shafts unlike the nits. [Heine Delta Dermoscope, non-polarizing, 20×]. (b) In-vivo high-magnification polarized videotrichoscopic images displaying nits in different stages of maturation/degeneration - (b) Active viable nit- ovoid brown colored structure containing viable embryo with intact operculum (black arrow).(c) Abortive Nit: translucent whitish-brown showing condensed non-viable embryo (yellow arrow) with surrounding air (white arrow). (d) Empty Nit: translucent crystalline-whitish colored open-ended nit without operculum after the discharge of the nymph or abortive embryo. [Dinolite premier AM4113 ZT videodermoscope, Taiwan, polarized, 80×]

Figure 2: (a) In-vivo appearance of pediculosis capitis with nits in different stages of maturation/degeneration – active/viable (red circled) containing eggs closed with a tough porous operculum, non-viable nit with dead nymph or post-hatching of the nymph, with open operculum (light-blue circled), and empty nit with only air filled shell (yellow circled). Also appreciate 'pseudonits' most commonly seen as dandruff flakes (inside green rectangles), which are of bizarre-shape, and non-adherent to the hair shafts unlike the nits. [Heine Delta Dermoscope, non-polarizing, 20×]. (b) In-vivo high-magnification polarized videotrichoscopic images displaying nits in different stages of maturation/degeneration - (b) Active viable nit- ovoid brown colored structure containing viable embryo with intact operculum (black arrow).(c) Abortive Nit: translucent whitish-brown showing condensed non-viable embryo (yellow arrow) with surrounding air (white arrow). (d) Empty Nit: translucent crystalline-whitish colored open-ended nit without operculum after the discharge of the nymph or abortive embryo. [Dinolite premier AM4113 ZT videodermoscope, Taiwan, polarized, 80×]