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Squamous Cell Carcinoma

Squamous cell carcinoma

Juga dikenali sebagai: SCC, Solar-induced squamous cell carcinoma, Multifocal squamous cell carcinoma in situ, Bowen's disease

Disemak doktor haiwanBirdCatDogTurtleKecemasan: ModerateSeberapa biasa: Common

Ringkasnya

Squamous cell carcinoma (SCC) is a common, sun-induced skin and oral cancer in dogs and cats, also occasionally affecting birds and turtles. Learn about symptoms, diagnosis, and treatment options.

An older white cat with early solar-induced crusting and redness on its ear tips.
Older cats with white or lightly pigmented ears are highly susceptible to solar-induced squamous cell carcinoma.

TL;DR. Kanser kulit dan mulut biasa dikaitkan dengan matahari; pengesanan awal dan rawatan tempatan agresif penting.

Kucing tua dengan telinga putih atau pigmentasi cerah sangat berisiko SCC suria.

Apa itu?

Tumor malignan keratinosit kulit dan mukosa. Bentuk kutaneus (ulser merosakkan yang tidak sembuh) dan oral (sangat invasif, sering erosi tulang). Terutama anjing dan kucing; burung dan kura-kura mungkin.

Punca dan faktor risiko

UV kronik: faktor kutaneus utama. Risiko: bulu putih, kulit cerah, bulu jarang, altitude, matahari kuat. Pada kucing, papillomavirus mungkin terlibat.

"One paper suggests a papillomavirus may be involved in the etiology of feline squamous cell carcinoma. Older, white cats or those with lightly pigmented noses and that live in sunny climates are at risk. Lesions progress slowly through early solar damage with crusting and erythema to carcinoma in situ to invasive squamous cell carcinoma."

"Sunlightinduced tumors on the flank and ventrum occur most commonly in lightly pigmented dog breeds such as Dalmatians, Beagles, Whippets, and White English Bull terriers. The condition is common in cats, with highest incidence reported in older white cats."

Tanda yang perlu diperhatikan

Kulit: kerak pada telinga/hidung/kelopak/perut; eritema; ulser tidak sembuh; jisim seperti ketuat.

Mulut: disfagia, anoreksia, nafas berbau, pendarahan.

Jari: jari bengkak sakit; kuku cacat atau hilang tanpa trauma.

A dog's belly showing red, crusty skin lesions caused by sun exposure.
Lesi solar perut pada anjing boleh berkembang menjadi SCC invasif.

Diagnosis

Pemeriksaan kulit, mulut dan nodus limfa. Sitologi sering tidak muktamad. Biopsi dengan histopatologi: standard emas. Staging: aspirasi nodus, X-ray toraks 3 unjuran, CT tumor oral.

A digital X-ray screen showing a canine chest radiograph used for cancer staging.
X-ray toraks 3 unjuran untuk metastasis paru.

Rawatan

Pembedahan: pilihan utama dengan margin luas (pinnektomi, amputasi jari; oral: mandibulektomi/maksilektomi separa).

Radioterapi ± hipertermia jika reseksi tidak lengkap.

Perubatan: Carboplatin, Cisplatin; Piroxicam paliatif.

"Radiotherapy plus hyperthermia has been successful"

Prognosis

SCC kutaneus awal dibedah: baik hingga cemerlang. SCC oral, terutamanya kucing: berjaga-jaga hingga buruk. Eksotik: data terhad.

Pencegahan

  • Elak matahari 10:00-16:00
  • Krim matahari haiwan sahaja
  • Filem UV
  • Periksa kulit dan mulut secara berkala

Bila hubungi doktor haiwan

Kecemasan: pendarahan mulut teruk, disfagia mendadak, penurunan berat pantas, kesakitan melampau.

Untuk baka tertentu

Kulit cerah atau bulu jarang:

Sumber

  • Small-Animal Dermatology: A Color Atlas and Therapeutic Guide, pages 441, 444.
  • Cowell and Tyler's Diagnostic Cytology and Hematology of the Dog and Cat, 5th Edition, page 153.
  • Current Techniques in Small Animal Surgery, 5th Edition, page 392.
  • Textbook of Veterinary Internal Medicine, 5th Edition, page 464.

My highlights & notes

Tanda & simptom

Baka berisiko lebih tinggi

Cara didiagnosis

  • Biopsy with histopathologic examinationStandard emas
  • CT scan
  • Cytology
  • Regional lymph node aspirate
  • Three-view thoracic radiographs

Pendekatan rawatan

Rawatan mesti dipreskripsikan doktor haiwan berlesen. Dos khusus sengaja tidak dipaparkan.

Soalan lazim

What is Squamous Cell Carcinoma?

Squamous cell carcinoma (SCC) is a common, sun-induced skin and oral cancer in dogs and cats, also occasionally affecting birds and turtles. Learn about symptoms, diagnosis, and treatment options.

What are the symptoms of Squamous Cell Carcinoma?

Loss of appetite、Bleeding、Crusting、Trouble swallowing (dysphagia)、Skin redness、Bad breath、Proliferative skin lesions、Ulcerative skin lesions

How is Squamous Cell Carcinoma diagnosed?

Biopsy with histopathologic examination、CT scan、Cytology、Regional lymph node aspirate、Three-view thoracic radiographs

How is Squamous Cell Carcinoma treated?

Rawatan mesti dipreskripsikan doktor haiwan berlesen. Dos khusus sengaja tidak dipaparkan.

Sumber

  1. 2016 oncology guidelines
  2. 皮膚病 教科書點子書 Small-Animal-Dermatology-A-Color-Atlas-and-Therapeutic-Guide · p. 444
  3. Cowell and Tyler s Diagnostic Cytology and Hematology of the Dog and Cat, 5th Edition (VetBooks.ir) · p. 153
  4. Current Techniques in Small Animal Surgery, 5th Edition (VetBooks.ir) · p. 392
  5. 皮膚病 教科書點子書 Small-Animal-Dermatology-A-Color-Atlas-and-Therapeutic-Guide · p. 441
  6. Internal Medicine 5th · p. 464

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