Trichodysplasia spinulosa: follicles plugged w/ hyperkeratotic & parakeratotic debris, excessive inner root sheath differentiation towards keratinization. Enlarged cytoplasmic trichohyalin granules. EM shows intranuclear icosahedral polyomavirus inclusions! -Silvija Gottesman MD @SGottesmanMD #Trichodysplasia #spinulosa #Pathology #Microscopy #Dermatology #Clinical
