PetCaseFinder

Peer-reviewed veterinary case report

Cat with hair shaft damage and hair loss from flea allergy

By Alhaidari, Zeineb et al.·Published in Veterinary dermatology·1996·Clinique V&#xe9, France·View original on PubMed

PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →

Original publication title: Acquired féline hair shaft abnormality resembling trichorrhexis nodosa in humans.

Species:
cat

Plain-English summary

A 2-year-old male domestic short-haired cat was brought in for hair loss caused by excessive grooming, which resulted in whitish nodes on the remaining hair. The vet found that the hair shafts were swollen and damaged, leading to hair breakage. The diagnosis was trichorrhexis nodosa, a condition linked to flea allergy dermatitis. After starting flea control, the cat's condition improved completely, indicating that the problem was acquired due to the excessive grooming triggered by the fleas.

People also search for: cat hair loss treatment · why is my cat grooming so much · flea allergy dermatitis in cats

Abstract

Abstract  A 2-year-old castrated male domestic short-haired cat presented with self-induced alopecia associated with whitish nodes on the remaining hair shafts. Light and scanning microscopy demonstrated swellings of the hair shafts, accompanied by cuticular damage leading to hair fractures with a typical brush-like appearance. A díagnosis of trichorrhexis nodosa associated with flea allergy dermatitis was made. Complete resolution of the condition with flea control suggests an acquired disorder secondary to excessive grooming. Resumen  Un gato doméstico de pelo corto, castrado, de dos años de edad, se presentó con alopecia autoinducida asociada a nódulos blancos en los pelos aún presentes. La microscopia optica y de barrido demostraró tumefacción de los pelos, junto con daño cuticular Uevando a fragmentaciones del pelo con aspecto de cepillo. Se realizó un díagnóstico de tricorrexis nodosa asociada a alergia a las pulgas. La resolución completa de las lesiones tras un control de pulgas sugiere que se trata de una alteración adquirida secundaria al acicalamiento excesivo. [Alhaidari, Z., Olivry, T., Ortonne, J.-P. Acquired féline hair shaft abnormality resembling trichorrhexis nodosa in humans. (Anomalia del pelo adquirida en la especie felina semejante a la tricorrexis nodosa humana.) Veterinary Dermatology 1996; 7: 235-238.] Résumé Un chat male domestique poll court de 2 ans a été amené en consultation pour une alopécie traumatique avec présence de noeuds blanchâtres sur les tiges pilaires restantes. Microscopie optique et microscopie à balayage ont démontré des dilatations des tiges pilaires, avec des alterations cuticulaires aboutissant à des fractures du poll laissant une extrêmité avec l'aspect caractéristique de brosse. Un díagnostic de trichorrhexie noueuse associéà une DAPP a été pose. La resolution complète du problème avec un contrôle insecticide suggère une pathologie acquise secondaire à un léchage excessif. [Alhaidari, Z., Olivry, T., Ortonne, J.-P. Acquired féline hair shaft abnormality resembling trichorrhexis nodosa in humans. (Anomalie pilaire acquise chez un chat ressemblant à la trichorrhexie noueuse chez l'homme.) Veterinary Dermatology 1996; 7: 235-238.] Zusammenfassung  Ein zweijähriger kastrierter Kurzhaarkater zeigte ein selbst-induzierte Alopezie in Verbindung mit weißljchen Knoten auf den verbliebenen Haarschäften. Licht-und Elektronenmikroskopie zeigte Schwellungen der Haarschäfte, begleitet von Schäden der Kutikula, die zu Haarbruch mit typischen bürstenähnlichen Erscheinungen führten. Es wurde die Diagnose "Trichorrhexis nodosa in Verbindung mit Flohbißdermatitis" gestellt. Eine vollständige Abheilung des Zustandes durch Flohbekämpfung läßt an eine erworbene Störung sekundär durch exzessive Fellpflege denken. [Alhaidari, Z., Olivry, T., Ortonne, J.-P. Acquired féline hair shaft abnormality resembling trichorrhexis nodosa in humans (Erworbene Haarschaftanomalie bei der Katze mit Ähnlichkeit zur Trichorrhexis nodosa beim Menschen) Veterinary Dermatology 1996; 7: 235-238.].

Find similar cases for your pet

PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.

Search related cases →

Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34644873/