Neoplasia II

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    FIBROMA OVARII

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    Clinical Features

    Fibroma Ovarii is a tumor arising in the

    ovarian stroma that are composed of

    fibroblasts.

    90 % unilateral.

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    Macrocopic

    Fibroma ovarii is a solid tumor, spherical

    or slightly lobulated, encapsulated, hard,

    gray-white in color.

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    FIBROMA OVARY

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    Microscopic

    Fibroma ovarii are composed of well

    differentiated fibroblast, which have

    spindle nuclei, collagenous connective

    tissue interspersed between them.

    The fibroblast cells are arranged in

    irregular bundles (nonspesific pattern)

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    LIPOMA

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    Clinical Features

    Lipoma is benign tumor of fat.

    The most common soft tissue tumor ofadulthood.

    Most lipomas are subcutaneous masses, welldemarcated, soft, mobile, and painless tumor.However, lipoma can also occur in the deep-seated tissue (intramuscular lipoma).

    Location: can arise in any location but themajority occur in the upper half of the body,particularly the trunk and neck.

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    Macroscopic & Microscopic

    Lipomas can grow to a large size

    Macroscopic:

    usually encapsulated.

    Cut section: solid tumor, consisted of bright

    yellow fat tissue.

    Microscopic:

    Lipomas are composed of mature adipose

    tissue with no cellular atypia ( no sign of

    anaplasia).

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    FIBROSARCOMA

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    Clinical Features

    Fibrosarcoma is malignant tumor originatingfrom fibroblast cells.

    Age: commonly occur in adult, but can occur in

    any age group. They arise from superficial and deep connective

    tissue such as fascia, tendon, periosteum, etc.

    Location: may occur anywhere in the body, most

    commonly in the retroperitoneum, thigh, knee,and distal extremities.

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    Macrocopic

    Typically, these neoplasm are:

    Unencapsulated

    Infiltrative

    Soft, fish-flesh consistency

    Often having areas of hemorrhage and

    necrosis.

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    FIBROSARKOMA

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    Microscopic

    Tumor composed of fibroblast cells whichhave plump-spindle nuclei with sign ofanaplasia.

    These cells are arranged in fascicles thatintersect each other at acute anglesresulting in a herringbone appearance.

    Numerous mitotic activity. May contain areas of hemorrhage and

    necrosis

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    LEIOMYOMA UTERI

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    Clinical Features Leiomyoma is benign tumor of smooth muscles

    Uterine leiomyoma are perhaps the mostcommon benign tumor in females. These benigntumor may present in about 75% of females of

    reproductive age. Leiomyoma of the uterus may be asymptomatic.

    The most important symptoms are abnormalbleeding, urinary frequency (due to compression

    of the bladder), impaired fertility, abdominalmass (if the tumor has already extensive).

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    Macroscopic

    Leimyomas are solid and sharply circumscribed

    tumor, round, firm, gray-white in color, varying in

    size from small nodule to massive tumor.

    Cut section: whorled pattern of smooth musclebundles.

    They can occur :

    Within the myometrium---intramural

    Just beneath the endometrium--- submucosal

    Beneath the serosa --- subserosal

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    Microscopic

    Leiomyoma is composed of proliferation of

    smooth muscle cells, which have oval and

    long (spindle) nuclei, uniform in size and

    shape (no sign of anaplasia), andarranged in characteristic whorled pattern

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