INTRODUCTION
• Nasal cancerincludes cancers originating in the nasal cavity and the
paranasal sinuses (maxillary, ethmoid, frontal, and sphenoid sinuses).
• Approximately 70–80% of sinonasal cancers arise in the maxillary
sinus, while cancers of the nasal cavity commonly involve the lateral
wall or nasal septum.
• Because the early symptoms resemble common conditions such as
sinusitis or allergic rhinitis, diagnosis is often delayed.
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DEFINITION
•Nasal cavity canceris a malignant tumor that arises
from the tissues lining the nasal cavity or the paranasal
sinuses.
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TYPES
• A. Accordingto Site
• 1. Nasal Cavity Cancer
• Arises from the lining of the nasal cavity.
• Commonly affects the lateral wall or nasal septum.
• Usually presents earlier because symptoms appear sooner.
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CONTI..
• 2. ParanasalSinus Cancer
• Originates from one of the paranasal sinuses.
• Maxillary sinus cancer (most common)
• Ethmoid sinus cancer
• Frontal sinus cancer (rare)
• Sphenoid sinus cancer (very rare)
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CONTI..
• According tohistological types
• 1. Squamous Cell Carcinoma (SCC) – Most Common
• It is the most common type, accounting for approximately 60–70% of nasal
cavity and paranasal sinus cancers.
• It develops from the squamous epithelial cells lining the nasal cavity and
paranasal sinuses.
• It usually occurs in adults over 50 years of age and is more common in males.
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• 2. Adenocarcinoma
•Adenocarcinoma arises from the mucus-producing glandular cells
of the nasal cavity or paranasal sinuses.
• It is the second most common sinonasal malignancy.
• It is strongly associated with long-term exposure to hardwood dust
and leather dust, especially in carpenters and furniture workers.
• It most commonly affects the ethmoid sinus.
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CONTI..
•3. Adenoid CysticCarcinoma (ACC)
•Adenoid cystic carcinoma originates from the minor
salivary glands present in the nasal cavity and
paranasal sinuses.
•It is a slow-growing but highly invasive tumor.
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CONTI..
•5. Olfactory Neuroblastoma
•Thisrare tumor arises from the olfactory
neuroepithelium located in the roof of the nasal
cavity.
•It can occur in both young adults and older individuals.
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CONTI..
•6. Mucosal Melanoma
•Mucosalmelanoma develops from the melanocytes
present in the nasal mucosa.
•It is a rare but highly aggressive form of nasal cancer.
CONTI..
• Previous radiationexposure
• Human papillomavirus infection (HPV)
• Epstein–Barr virus infection (EBV)
• Family history and genetic predisposition
• Exposure to industrial chemicals and air pollution
• Occupational exposure to textile and flour dust
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STAGES
• Stage I
•Tumor is confined to the nasal cavity or one paranasal sinus.
• No invasion of adjacent structures.
• No regional lymph node involvement (N0).
• No distant metastasis (M0).
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CONTI..
• Stage II
•Tumor has grown larger or extends into nearby areas within
the nasal cavity or sinus.
• May involve bone erosion of the affected sinus.
• No regional lymph node involvement (N0).
• No distant metastasis (M0).
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CONTI..
• Stage III
•Tumor extends into adjacent structures (e.g., surrounding
bone, orbit, palate, or nearby soft tissues) or
• Cancer has spread to one lymph node on the same side of
the neck (≤3 cm).
• No distant metastasis (M0).
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CONTI..
• Stage IVA
•Tumor invades important nearby structures, such as:
• Orbit (eye socket)
• Skin of the face
• Anterior skull base
• Hard palate
• May involve one or more regional lymph nodes.
• No distant metastasis (M0).
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CONTI..
• Stage IVB
•Tumor invades critical structures, such as:
• Brain
• Cranial nerves
• Nasopharynx
• Major blood vessels
• Large or multiple cervical lymph node involvement may be present.
• No distant metastasis (M0).
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CONTI..
• Stage IVC(Metastatic Disease)
• Cancer has spread to distant organs regardless of the primary tumor
size or lymph node status.
• Common sites of metastasis include:
• Lungs
• Liver
• Bones
• Brain
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CLINICAL MANIFESTATIONS
• Persistentunilateral nasal obstruction
• Recurrent epistaxis (nosebleeds)
• Blood-stained nasal discharge
• Facial pain or swelling
• Nasal congestion not responding to
treatment
• Reduced or loss of smell (anosmia)
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CONTI..
• Headache
• Looseningof upper teeth
• Swelling or ulcer of the hard palate
• Bulging of the eye (proptosis) or double vision (diplopia)
• Weight loss and fatigue
MANAGEMENT
•SURGICAL MANAGEMENT
•Endoscopic endonasalresection: Minimally invasive
removal of small tumors through the nostrils.
•Partial or total maxillectomy: Removal of part or all
of the upper jaw when the maxillary sinus is involved.
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CONTI..
•Craniofacial resection: Performedwhen the tumor
extends to the skull base or cranial cavity.
•Orbital exenteration: Removal of the eye and
surrounding tissues if the orbit is extensively involved.
CONTI..
• 3. Chemotherapy
•Chemotherapy uses anticancer drugs to destroy cancer cells or slow their
growth.
• Common drugs:
• Cisplatin
• Carboplatin
• 5-Fluorouracil (5-FU)
• Docetaxel
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CONTI..
•4. Targeted Therapy
•Targetedtherapy blocks specific molecules involved in
cancer growth.
•Example:
•Cetuximab (targets the epidermal growth factor receptor)
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CONTI..
• 5. Immunotherapy
•Immunotherapy stimulates the body's immune system to
attack cancer cells.
• Examples:
• Pembrolizumab
• Nivolumab
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CONTI..
• 6. PalliativeCare
• Provided for advanced or incurable disease to improve quality of life
by:
• Relieving pain
• Controlling bleeding and nasal obstruction
• Managing symptoms
• Providing psychological and emotional support