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  2. Paranasal sinus and nasal cavity cancer - Wikipedia

    en.wikipedia.org/wiki/Paranasal_Sinus_and_Nasal...

    Paranasal sinus and nasal cavity cancer is a type of cancer that is caused by the appearance and spread of malignant cells into the paranasal sinus and nasal cavity. The cancer most commonly occurs in people between 50 and 70 years old, and occurs twice as often in males as in females. [3] During early phases of the cancer, symptoms may include ...

  3. Nasal septum - Wikipedia

    en.wikipedia.org/wiki/Nasal_septum

    The nasal septum contains bone and hyaline cartilage. [3] It is normally about 2 mm thick. [4] The nasal septum is composed of four structures: Maxillary bone (the crest) Perpendicular plate of ethmoid bone. Septal nasal cartilage (ie, quandrangular cartilage) Vomer bone. The lowest part of the septum is a narrow strip of bone that projects ...

  4. Human nose - Wikipedia

    en.wikipedia.org/wiki/Human_nose

    Human nose. The human nose is the first organ of the respiratory system. It is also the principal organ in the olfactory system. The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum, which separates the nostrils and divides the nasal cavity into two.

  5. Squamous-cell carcinoma - Wikipedia

    en.wikipedia.org/wiki/Squamous-cell_carcinoma

    Squamous-cell carcinoma ( SCC ), also known as epidermoid carcinoma, comprises a number of different types of cancer that begin in squamous cells. [1] These cells form on the surface of the skin, on the lining of hollow organs in the body, and on the lining of the respiratory and digestive tracts. [1]

  6. Head and neck cancer - Wikipedia

    en.wikipedia.org/wiki/Head_and_neck_cancer

    Head and neck cancer develops from tissues in the lip and oral cavity (mouth), larynx (throat), salivary glands, nose, sinuses, or skin of the face. [5] The most common types of head and neck cancer occur in the lips, mouth, and larynx. [5] Symptoms predominantly include a sore that does not heal or a change in the voice. [1]

  7. Nasopharyngeal carcinoma - Wikipedia

    en.wikipedia.org/wiki/Nasopharyngeal_carcinoma

    Nasopharyngeal carcinoma ( NPC ), or nasopharynx cancer, is the most common cancer originating in the nasopharynx, most commonly in the postero-lateral nasopharynx or pharyngeal recess ( fossa of Rosenmüller ), accounting for 50% of cases. NPC occurs in children and adults. NPC differs significantly from other cancers of the head and neck in ...

  8. Hemangiosarcoma - Wikipedia

    en.wikipedia.org/wiki/Hemangiosarcoma

    Hemangiosarcoma. Hemangiosarcoma is a rapidly growing, highly invasive variety of cancer that occurs almost exclusively in dogs, and only rarely in cats, horses, mice, [1] or humans ( vinyl chloride toxicity). It is a sarcoma arising from the lining of blood vessels; that is, blood-filled channels and spaces are commonly observed ...

  9. Maxillary sinus - Wikipedia

    en.wikipedia.org/wiki/Maxillary_sinus

    57715. Anatomical terminology. [ edit on Wikidata] The pyramid-shaped maxillary sinus (or antrum of Highmore) is the largest of the paranasal sinuses, located in the maxilla. It drains into the middle meatus of the nose [1] [2] through the semilunar hiatus. It is located to the side of the nasal cavity, and below the orbit.

  10. Merkel-cell carcinoma - Wikipedia

    en.wikipedia.org/wiki/Merkel-cell_carcinoma

    Gross pathology specimen. Merkel-cell carcinoma (MCC) usually presents as a firm nodule (up to 2 cm diameter) or mass (>2 cm diameter). These flesh-colored, red, or blue tumors typically vary in size from 0.5 cm (less than one-quarter of an inch) to more than 5 cm (2 inches) in diameter and may enlarge rapidly.

  11. Dermoid cyst - Wikipedia

    en.wikipedia.org/wiki/Dermoid_cyst

    Dermoid cysts develop during pregnancy. They occur when skin cells and things like hair, sweat glands, oil glands or fatty tissue get trapped in the skin as a baby grows in the womb. Dermoid cysts are present at birth (congenital) and are common. It can be months or years before a dermoid cyst is noticed on a child because the cysts grow slowly ...