(3) Dr. in'Am - Praktikum PA
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Transcript of (3) Dr. in'Am - Praktikum PA
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Praktikum PA modul kulit dan jaringan penunjang
FKIK Universitas Tanjungpura
2012
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Istilah kelainan di kulit
Stratum korneum
• Hiperkeratosis: penebalan, perlu tahu lokasi lesi
• -Ortokeratosis: keratin bertambah tanpa inti
• -Parakeratosis: mengandung inti piknotik
Stratum granulosum: 1-2 lapis sel
• Hipergranulosis: penambahan jumlah lapisan
• Hipogranulosis/agranulosis: penurunan lapisan
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Stratum spinosum: 4-7 lapis sel, tergantung apakah daerah papila atau rete ridges
• Akantosis: penambahan jumlah lapisan
• Spongiosis: edema interseluler, dapat menjadi vesikel spongiotik jika jembatan antar sel ruptur.
Stratum basal: 1 lapis sel, terdapat mitosis
Dermis: pars papilaris dan pars retikularis
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BASAL LAYER
ONE LAYER
MITOTIC FIGURES
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SPINOSUM LAYER
acanthosis
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Spinosum layer
Intercellular bridge
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Granulosum layer
hipergranulosis
Keratohyalin granules
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Corneum layer : orthokeratosis
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EPIDERMIS: PAPILOMATOTIC
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Corneum layer: parakeratosis
Picnotic nuclei
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Inflamasi pada luka
Jaringan granulasi (SK1)
• Akumulasi makrofag,
• Proliferasi fibroblas,
• Pembentukan jaringan ikat muda renggang (kolagen, fibronektin dan asam hialuronat)
• Angiogenesis (endotel membentuk kapiler)
• Sel radang (limfosit, netrofil dan eosinofil)
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SK 1 GRANULATION TISSUE
4 x 10 X
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SK 1 GRANULATION TISSUE
ULSERATIVE EPIDERMIS
EDEMATOUS STROMA
BLOOD VESSELS
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SK 1 GRANULATION TISSUE
NEUTROPHILS
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Inflamasi pada infeksi bakteri
• Beberapa bakteri menyebabkan gambaran khas
• Granuloma: Infiltrat radang sel mononuklear (sel-sel epiteloid)
• Contoh: tuberkulosis, lepra (morbus Hansen), sifilis, leishmaniasis kutis, tularemia, rhinoskleroma, rhinosporidiosis.
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Tuberkulosis kutis (SK2)
• Epidermis intak
• Dermis: tuberkel, tersusun atas kelim limfosit, sel epiteloid, sel datia Langhans dan nekrosis perkijuan.
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• Granuloma sel histiosit, limfosit, netrofil dan eosinofil.
• Contoh: Deep mycosis, berbagai jenis cacing, reaksi benda asing, granuloma inguinal dan limfogranuloma venereum.
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SK 2 : TUBERCULOSIS
TUBERCLE
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SK 2 : TUBERCULOSIS
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SK 2 : TUBERCULOSIS
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Inflamasi pada infeksi virus
• Infeksi virus menyebabkan lesi proliferatif epidermis
• Infeksi virus papiloma manusia (Human papiloma virus/HPV)
• HPV tipe 1,2,4 sering menyebabkan kelainan kulit
• Veruka vulgaris: tipe 1, 2, dan 3
• Plantar warts: tipe 1 dan 4
• Palmar warts: tipe 2, 4, dan 7
• HPV tipe16 dan 18: Karsinoma serviks uteri
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Veruka vulgaris (SK3)
• Epidermis: hiperkeratotik, papilomatotik
• Rete ridges yang mengarah ke arah tengah lesi (sentripetal)
• Gambaran lesi seperti puncak gereja
• Stratum granulosum: sel koiloisit (inti atipik, sitoplasma jernih)
• Sel koilosit khas pada infeksi HPV
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SK 3: VERUCA VULGARIS
RETE RIDGES: FLATTENED
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SK 3: VERUCA VULGARIS
ACANTOTIC
HYPERGRANULOSIS HYPERKERATOTIC
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SK 3: VERUCA VULGARIS
CONE LIKE
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SK 3: VERUCA VULGARIS
KOILOCYTE
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Moluskum contagiosum (SK4)
• Disebabkan virus golongan pox
• Epidermis yang akantotik
• Stratum spinosum: jisim moluskum kebiruan (basofilik)
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SK 4 : MOLLUSCUM CONTAGIOSUM
DERMIS
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SK 4 : MOLLUSCUM CONTAGIOSUM
MOLUSCUM BODIES
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Keganasan pada kulit & jaringan penunjang
A. Tumor epidermis
• Umumnya seboroik keratosis, kista epidermal, aktinik keratosis, karsinoma sel skuamosa dan karsinoma sel basal.
B. Tumor melanositik
• Nevus pigmentosus, Melanoma malignum
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Kista epidermal (SK5) • Lesi dibatasi epitel gepeng berlapis menyerupai
epidermis atau infundibulum folikular • Tepi lumen: dapat ditemui lapisan granulosum • Epidermis dapat tipis atau tebal • Jika ruptur reaksi radang, terkadang membentuk
reaksi sel benda asing • Kista berisi massa keratin lamelar dalam lumen • Dinding kista tidak ada adneksa kulit • Jika ditemukan adenksa kulit: kista dermoid
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SK 5 EPIDERMAL CYST
Squamous epitelial
Keratin, lamelar
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SK 5 EPIDERMAL CYST
Keratin, lamelar
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Seboroik keratosis (SK6) • Secara histologik , 3 tipe utama: tipe hiperkeratotik,
akantotik dan retikulated. • Gambaran umum: lesi berbatas tegas, rete ridges
mendatar. • Tersusun atas proliferasi sel basaloid dan kista keratin. • Kista invaginasi epitel yang diisi oleh keratin, pada
pemotongan sediaan menyerupai kista. • Epidermis papilomatotik, keratotik, proliferasi sel basaloid,
kista keratin • Dermis tidak tampak kelainan bermakna, kecuali sebukan
ringan sel radang limfositik.
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SK 6 SEBOROIC KERATOSIS
PAPILOMATOTIC
KERATOTIC
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SK 6 SEBOROIC KERATOSIS
HORN CYST
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SK 6 SEBOROIC KERATOSIS
DARK BROWN PIGMEN IN THE BASAL LAYER
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Karsinoma sel skuamosa (SK7)
• Keganasan epitel gepeng berlapis.
• Massa menonjol ke permukaan dapat disertai ulserasi.
• Predileksi : daerah terpapar sinar matahari.
• Keganasan ini dihubungkan dengan sinar ultraviolet atau infeksi virus paplioma manusia.
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Mikroskopik
• Invasi membran basal, tampak anaplasia inti
• Sel tumor berukuran besar
• Individual cell dyskeratosis (keratin intrasel)
• Mutiara tanduk (horn pearl)
• Jembatan antar cel (intercelullar bridges)
• Mitosis mudah ditemukan
• Dibedakan, berkeratin dan tidak berkeratin berdasarkan produksi keratin, serta diferensiasi baik, sedang dan buruk tergantung kemiripan dengan epitel gepeng normal.
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SK 7 SQUAMOUS CELL CARCINOMA
INFILTRATIVE
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SK 7 SQUAMOUS CELL CARCINOMA
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SK 7 SQUAMOUS CELL CARCINOMA
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SK 7 SQUAMOUS CELL CARCINOMA
INDIVIDUAL CELL DYSKERATOSIS
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SK 7 SQUAMOUS CELL CARCINOMA
INTERCELLULAR BRIDGES
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Karsinoma sel basal (SK8)
• Sering di kulit terpapar sinar matahari terutama orang berkulit berwarna terang.
• Muncul akibat kegagalan perbaikan stem sel keratinositik , kerusakan DNA karena sinar matahari.
• Gambaran klinis: berupa ulkus kronik, rodent-ulcer.
• Umumnya tidak bermetastasis, namun destruksi lokal.
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Mikroskopik
• Massa tumor di dermis membentuk struktur nodular.
• Nodul tersusun atas sel basaloid (inti kecil, hiperkromatik), bagian tepi membentuk struktur seperti pagar (palisading).
• Karsinoma sel basal dapat tumbuh infiltratif, pada stroma yang desmoplastik.
• Sel tumor, bentuk dan ukuran yang monoton, inti umumnya lonjong, hiperkromatik, sitoplasma sedikit
• Stroma di sekitar masa tumor tampak padat, desmoplastik, memberikan gambaran seperti ada celah di antara massa tumor dan stroma.
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SK 8 BASAL CELL CARCINOMA
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SK 8 BASAL CELL CARCINOMA
PALISADING PATTERN
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SK 8 BASAL CELL CARCINOMA
BASALOID CELL
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SK 8 BASAL CELL CARCINOMA
SOLID PATTERN
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SK 8 BASAL CELL CARCINOMA ADENOID PATTERN
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Nevus pigmentosus (SK9)
• 3 jenis: intradermal, junctional dan compound. Dua tipe terakhir dapat mengalami transformasi maligna.
Mikroskopik
• Pulau-pulau sel nevus tersusun atas sel bulat/lonjong dan uniform.
• Sebagian sel nevus mengandung pigmen tengguli pada sitoplasma, terutama bagian yang dekat epidermis.
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SK 9 NEVUS PIGMENTOSUS
NEVUS CELLS
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SK 9 NEVUS PIGMENTOSUS
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SK 9 NEVUS PIGMENTOSUS
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Melanoma malignum (SK 10)
• Tumor ganas yang lebih sering dijumpai pada orang kaukasian
• Biasanya pada usia dekade 4 sampai 7
• Ukuran 2 mm -15 cm, tepi tidak berbatas tegas
• Ulseratif
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Mikroskopik: • Sel tumor dapat berbentuk bulat atau spindel, dengan anak
inti mencolok, eosinofilik • Sel tumor dapat mengandung pigmen tengguli pada
sitoplasma, (dibuktikan dengan pewarnaan khusus Fontana-Masson)
• Beberapa tipe tidak mengandung melanin (amelanotik melanoma malignum).
• Untuk membuktikan adanya melanin: pewarnaan DOPA. • Kini sering dipergunakan pewarnaan imunohistokimia
untuk membuktikan melanoma, menggunakan petanda HMB-45.
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• Massa tumor berbentuk nodular, tersusun atas sel berukuran besar, dengan inti pleomorfik, vesikuler, anak inti mencolok, berwarna kemerahan
• Mitosis mudah ditemukan
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SK 10 MALIGNANT MELANOMA
ULCERATIVE EPIDERMIS
TUMOR CELL
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SK 10 MALIGNANT MELANOMA
TUMOR CELLS CONTAIN DARK BROWN PIGMEN
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SK 10 MALIGNANT MELANOMA
SPINDLE CELL
ROUND/OVAL, CONTAIN PROMINENT EOSINOPHILIC NUCLEOLI
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Sediaan mikroskopik
1. Jaringan granulasi 2. Tuberkulosis kutis 3. Veruka vulgaris 4. Moluscum contagiosum 5. Kista epidermal 6. Keratosis seboroik 7. Karsinoma sel skuamosa 8. Karsinoma sel basal 9. Nevus pigmentosus 10. Melanoma malignum