Leukocytes diagram -haematology

Leukocytes diagram -haematology

Lymphocytes, neutrophils , monocyte are drawn and compared with RBC. Search in the text box above for more slide/diagrams about these cell lines.

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leiomyoma histopathology diagram online

 

leiomyoma histopathology diagram

Leiomyoma is a benign tumor of smooth muscle cells. It is composed of whorls of smooth muscle cells . The invasive varient of leiomyoma is leimyosarcoma. In the search box above, search leiomyoma for a comprehensive article on leiomyomas.

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Invasive lobular carcinoma histopathology diagram

 

Invasive lobular carcinoma histopathology diagram

Under the microscope , invasive lobular carcinoma of breast appears as a tumor composed of small cells , alike in morphology, which form strands to lie around ducts . This is known as the Bulls Eye Appearance. 

VivaVoce: Invasive lobular CA form 5-10 percent of breast tumors. The most common site invasive lobular carcinoma will metastasize to is Cerebrospinal Fluid, followed by serosal surfaces and ovaries. 

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Capillary hemangioma and Carvernous hemangioma histopathology diagrams

Capillary hemangioma and Carvernous hemangioma histopathology diagrams

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Leiomyoma slides online- histopathology

 

Leiomyoma Histopathology slides are listed below. Click on the photos to enlarge them.

Leio = Smooth

Myo = Muscle

-oma = a suffix for benign tumors

Leiomyoma can occur wherever the smooth mucles are , since these are the benign tumors of smooth muscle cells, like :

intestines

soft tissues

uterus , etc.

Histologically there are whorls of smooth muscle cells seen under the microscope.

Viva Voce :  1) Leiomyomas rarely very rarely metastasize. They occur mostly in women (uterus !!!) …. (2) Their malignant form is leiomyosarcoma which is differentitated from leiomyoma by two findings in Ten High Power microscipy field views as:

i) it is leiomyosarcoma if there are more than 10 mitoses without cellular atypism(normal smooth muscle cells)

ii) or if there are 5-10 mitoses with cellular atypism(not the normal cells).

 

Fibroadenoma breast histopathology slides

 

Fibroadenoma breast histopathology slides are given below.

Fibroadenomas are the most common benign tumors of female breast. They are biphasic tumors, having an epithelial component and stroma. Epithelial component may sometimes line the cystic spaces as shown below and the cystic spaces ay be compressed by the stroma around it.  Fibroademas may increase in size near pregnancy. They may degenerate, infarct , or may calcify (as may be seen in mammographs of very older women) . As stated , these are benign, and kind of safe tumors , since they very rarely increase the risk of cancer.

To know the difference between a tumor and a cancer .. Click Here….

Giant cell tumor histopathology slides

 

Histopathology slides of giant cell tumor.Click on the photos to enlarge them.

Giant cell tumor of the bone is a locally invasive tumor affecting the age group of 25-50 years . On the bone Xrays the tumor gives Soap Bubble Appearance around the epiphyseal ends of the bones.Xray is not diagnostic,  its distinctive.  Histologically the tumor is diagnostic but not characteristic of whether the tumor will metastasize or not. Under the microscope there appear large giant cells with multiple nuclei residing in a spindle cell stroma. These giant cells basically arise from the fusion of these spindle cells .

For Viva Voce:

Knee is the most common site of involvement of Giant Cell Tumor of Bone.

If they metastasize the most common site would be……..lungs !

Also , the Giant cell tumor of tendons exists which is called Nodular Tenosynovitis which has a mixed picture of inflammation and tumorous growth.

Follicular adenoma of thyroid – the histopathology slide

 

Follicular adenoma thyroid histopathology slides are attached below. You may click the photos to view enlarged versions. Adenomas in thyroid are mostly follicular .They are painless and well demarcated lesions , havind a well defined fibrous capsule. Histologically they form nests or trabeculae containing very abundant colloid.

Please note for your viva voce; Hurthle cell adenomas appear under microscope as grnular eosinophilic cells rich in mitochondria.

Histology Slides Quiz - Online

 

The histology slides for the quiz have been put below, click on the photograph to enlarge it , the slide’s identification name is given after the last slide.

 

1. 

 

2.

 

3. 

 

4.  

 

5. 

 

6. 

 

7. 

 

8. 

 

 

 

-------------------------------------------KEY:

The slides as you may have identified are :

1.fibroadenoma

2.follicular adenoma

3.giant cell tumor

4.leiomyoma

5.lipoma

6,macrocytic anemia

7.microcytic anemia

8.osteosarcoma

Eye Disease – History and examination forms

 

 

For taking proper history of an eye disease and to examine eye properly, take help from and fill the two forms below. The second form takes into account the  visual acuity, visual field,  eye brows , orbits (whether exophthalmos or enophthalmos ) , squint and eyeball movements , the palpebral aperture , movements of lids, lid margins, eye lashes (trichiasis or districhiasis) , glands (chalazion or stye ), lacrimal glands, redness of eye, conjuntival and corneal examination , scleral swelling, examination of anterior chamber of the eye ,the iris of eye ,the examination of pupils, the lens of eye,and finally fundoscopy findings.