Trichodysplasia spinulosa (Q96362): Difference between revisions
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Tricodisplasia espinulosa é uma infecção viral cutânea foliculocêntrica de pacientes imunossuprimidos que causa maturação anormal do folículo piloso. Tem sido relacionada à presença de partículas de papilomavírus ou poliomavírus dentro dos queratinócitos foliculares. A histopatologia mostra maturação folicular anormal, produção excessiva de epitélio da bainha radicular interna e hiperqueratose do infundíbulo. A condição se apresenta com pápulas foliculares disseminadas com uma espícula central de queratina. A face está quase sempre envolvida. Foi relatada em pacientes transplantados e subsequente a quimioterapia para leucemia. | |||
| description / en | description / en | ||
Trichodysplasia spinulosa is a folliculocentric cutaneous viral infection of immunosuppressed patients which causes abnormal hair follicle maturation. It has been linked to the presence of papilloma or polyoma virus particles within follicular keratinocytes. Histopathology shows abnormal follicle maturation, excessive production of inner root sheath epithelium and hyperkeratosis of the infundibulum. The condition presents with widespread follicular papules with a central keratin spicule. The face is nearly always involved. It has been reported in transplant patients and following chemotherapy for leukaemia. | |||
Revision as of 12:19, 16 August 2026
Trichodysplasia spinulosa is a folliculocentric cutaneous viral infection of immunosuppressed patients which causes abnormal hair follicle maturation. It has been linked to the presence of papilloma or polyoma virus particles within follicular keratinocytes. Histopathology shows abnormal follicle maturation, excessive production of inner root sheath epithelium and hyperkeratosis of the infundibulum. The condition presents with widespread follicular papules with a central keratin spicule. The face is nearly always involved. It has been reported in transplant patients and following chemotherapy for leukaemia.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | ID_1539193990 |
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| English | Trichodysplasia spinulosa |
Trichodysplasia spinulosa is a folliculocentric cutaneous viral infection of immunosuppressed patients which causes abnormal hair follicle maturation. It has been linked to the presence of papilloma or polyoma virus particles within follicular keratinocytes. Histopathology shows abnormal follicle maturation, excessive production of inner root sheath epithelium and hyperkeratosis of the infundibulum. The condition presents with widespread follicular papules with a central keratin spicule. The face is nearly always involved. It has been reported in transplant patients and following chemotherapy for leukaemia. |
