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Topic: Sebaceous gland


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In the News (Sat 11 Oct 08)

  
  Reference.com/Encyclopedia/Sebaceous gland
Sebaceous glands are also found in non-haired areas of eyelids, penis, labia minora, and nipples.
Sebaceous glands secrete an oily substance called sebum (Latin, meaning fat or tallow) that is made of fat (lipids) and the debris of dead fat-producing cells.
Sebaceous gland carcinoma is a rare and aggressive form of cancer involving the sebaceous glands; sebaceous adenoma is a more benign neoplasm of the sebaceous glands.
www.reference.com /browse/wiki/Sebaceous_gland   (548 words)

  
 sebaceous gland - Encyclopedia.com
sebaceous gland, gland in the skin of mammals that secretes an oily substance called sebum.
In humans, sebaceous glands are primarily found in association with hair follicles but also occur in hairless areas of the skin, except for the palms of the hand and soles of the feet.
A rare case of a sebaceous nevus in the external auditory canal.
www.encyclopedia.com /doc/1E1-sebaceou.html   (1246 words)

  
 eMedicine - Sebaceous Gland Carcinoma : Article Excerpt by: Michael L Glassman, MD, FACS
Neoplasms of the sebaceous glands may be benign, such as sebaceous hyperplasia or sebaceous gland adenomas.
Sebaceous cell carcinomas are typically found in women, more often in the seventh decade of life, and they usually are on the upper lid margin.
Etiology: Carcinoma of the meibomian and Zeis glands
www.emedicine.com /oph/byname/sebaceous-gland-carcinoma.htm   (530 words)

  
 eMedicine - Sebaceous Gland Carcinoma : Article by Michael L Glassman, MD, FACS
Kass LG, Hornblass A: Sebaceous carcinoma of the ocular adnexa.
Khan JA, Doane JF, Grove AS Jr: Sebaceous and meibomian carcinomas of the eyelid.
Yeatts RP, Waller RR: Sebaceous carcinoma of the eyelid: pitfalls in diagnosis.
www.emedicine.com /OPH/topic716.htm   (1619 words)

  
 HHS: Veterinary Medicine Community Client Instructions -- Sebaceous Gland Tumors
Sebaceous gland tumors are often mistakenly referred to as warts or sebaceous cysts.
Sebaceous gland tumors that occur on the eyelids should be removed when they are small, because larger tumors are more difficult to remove.
Sebaceous gland tumors that bleed easily or irritate the pet are more likely to be malignant and should be removed.
www3.us.elsevierhealth.com /communities/Veterinary/Duclos/sebaceousglandtumors_instructions.html   (374 words)

  
 Sebaceous gland
Sebaceous glands can usually be found in hair covered areas where they are contained in hair follicles, but they are also found in the unbehaired areas of lips, eyelids, penis, labia minora and nipples.
Sebaceous glands that are found in hair follicles deposit sebum on the hairs, and bring it to the skin surface along the hair shaft.
The sebaceous glands of a fetus in utero secretes a substance called Vernix caseosa, a "waxy" or "cheesy" white substance found coating the skin of newborn humans.
www.xasa.com /wiki/en/wikipedia/s/se/sebaceous_gland.html   (178 words)

  
 The Ultimate Sebaceous gland - American History Information Guide and Reference
Sebaceous glands can usually be found in hair covered areas where they are contained in hair follicles, but they are also found in nonhaired areas of lips, eyelids, penis, labia minora and nipples.
Sebaceous glands that are found in hair follicles deposit sebum on the hairs, and bring it to the skin surface along the hair shaft.
Sebaceous glands can be involved in skin problems (typically acne and keratosis pilaris), which are studied and treated by dermatologists.
www.historymania.com /american_history/Sebum   (187 words)

  
 Sebaceous gland - WrongDiagnosis.com
Sebaceous gland: a cutaneous gland that secretes sebum (usually into a hair follicle) for lubricating hair and skin.
Sebaceous gland: small, sacculated organs found within the dermis which secrete sebum; ducts from most sebaceous glands open into a hair follicle but some open on the general surface of the skin.
The ducts from most sebaceous glands open into a HAIR FOLLICLE, but some open on the general surface of the SKIN.
www.wrongdiagnosis.com /medical/sebaceous_gland.htm   (270 words)

  
 male and female pattern baldness information
For example, in one study looking at oil producing sebaceous gland activity in acne, a dose of 2% testosterone cream was applied to the forehead of eight boys for 6 weeks and the effect determined by measurements of sebum excretion rate (SER).
Further, the lipid rich sebaceous gland cells are preferred areas for type I 5 alpha reductase activity.
Sebaceous gland activity and serum dehydroepiandrosterone sulfate levels in boys and girls.
www.keratin.com /ac/baldnesstreatments/propecia/007propeciaandsebaceousgland.shtml   (544 words)

  
 Sebaceous Gland Tumors - The Merck Veterinary Manual
These lesions are distinguished from sebaceous gland hyperplasias and adenomas because they are linear or circumscribed, several centimeters in length or diameter, and are usually identified shortly after birth.
Sebaceous gland adenomas are seen in all domestic animals but are so common in older dogs and cats, they can be considered primarily a small animal neoplasm.
Sebaceous gland epitheliomas are a variant of sebaceous adenoma distinguished by lobules composed primarily of basal progenitor cells rather than mature sebocytes.
www.merckvetmanual.com /mvm/htm/bc/72211.htm   (572 words)

  
 Sebaceous Adenoma
Histologically, sebaceous adenoma is a multilobulated tumour sharply demarcated from the surrounding tissue.
Sebaceous adenoma of oral cavity: report of case and comparative proliferation study with sebaceous gland hyperplasia and Fordyce's granules.
Sebaceous gland adenoma of the tarsal conjunctiva in a patient with Muir-Torre syndrome.
www.histopathology-india.net /SeAd.htm   (168 words)

  
 * Sebaceous Gland - (Beauty): Definition
Sebaceous Gland: Gland in the dermis that produces sebum.
Acini: The secretor portion of the sebaceous gland.
A viscous, pale yellow natural oil secretion of the sebaceous glands in the skin and scalp that lubricate and protect and also are implicated in the pathogenesis of acne.
en.mimi.hu /beauty/sebaceous_gland.html   (459 words)

  
 Final Diagnosis -- Case 281   (Site not responding. Last check: )
Additionally the presence of sebaceous differentiation in some of the intranodal salivary gland inclusions and demonstration of a fibrous capsule with sinuses, lymphoid follicles and germinal centers in most of the tumors, support the presence of an underlying lymph node component.
It is possible that parotid gland tissue entrapped within lymph nodes may undergo cystic degeneration to become a lymphoepithelial cyst, sebaceous differentiation to become a sebaceous lymphadenoma or sebaceous lymphadenocarcinoma, or oncocytic differentiation to become a Warthin's tumor.
Sebaceous lymphadenoma may be mistaken for a low-grade mucoepidermoid carcinoma, especially on a small biopsy specimen.
path.upmc.edu /cases/case281/dx.html   (465 words)

  
 World Journal of Surgical Oncology | Full text | Sebaceous gland tumors and internal malignancy in the context of ...
Sebaceous gland tumors and internal malignancy in the context of Muir-Torre syndrome.
All these sebaceous gland tumors are rare in the general population and the finding of such a tumor may represent a marker for MTS and should prompt a search for occult malignancy [9].
In conclusion sebaceous gland tumors are rare and the diagnosis of such a tumor should suggest the possibility of Muir-Torre syndrome and prompt a search for associated malignancies, and for the underlying genetic mutation.
www.wjso.com /content/4/1/8   (2246 words)

  
 Sebaceous Carcinoma of the Skin
Sebaceous carcinoma is a rare malignant tumor derived from the epithelium of sebaceous glands.
Intraepithelial sebaceous carcinoma of the eyelid misdiagnosed as Bowen's disease.
Sebaceous lesions, including sebaceous hyperplasia, sebaceomas, and sebaceous adenomas and carcinomas, are histologically distinctive adnexal proliferations with a spectrum of biological behavior ranging from benign to frankly malignant.
www.thedoctorsdoctor.com /diseases/skin_sebaceous_ca.htm   (4444 words)

  
 Muir-Torre syndrome
Sebaceous adenomas are characterized by dermal lobules composed of neoplastic sebocytes with an architecture vaguely resembling normal sebaceous lobules [4].
Sebaceous carcinomas are very rare in occurrence and have the potential to arise from any sebaceous gland in the body.
Unlike sebaceous adenomas, sebaceous carcinomas are fairly aggressive in nature, with the tendency for angiolymphatic invasion and subsequent metastatic disease [7].
dermatology.cdlib.org /125/UCDcases/muir/navi.html   (1682 words)

  
 Crutchfield Dermatology : Treatments : Sebaceous Gland Hyperplasia
Sebaceous gland hyperplasia presents as small cream- to yellow-colored papules located, most notably, on the face.
Sebaceous gland hyperplasia is a harmless condition that is only a cosmetic concern.
Sebaceous gland hyperplasia can effectively be treated with a number of cosmetic procedures including minor surgery, liquid nitrogen freezing, and, most effectively, with laser therapy.
www.crutchfielddermatology.com /treatments/Sebaceousglandhyperplasia   (435 words)

  
 IngentaConnect Loss of mismatch repair proteins in sebaceous gland tumors   (Site not responding. Last check: )
Sebaceous gland neoplasms are rare tumors that are associated with visceral malignancies in patients with Muir–Torre syndrome (MTS).
We studied the expressions of hMLH-1 and hMSH-2 in 10 consecutive sebaceous hyperplasias, 10 sebaceus nevi, 12 sebaceous adenomas, seven sebaceous carcinomas and the adjacent normal sebaceous glands using immunohistochemistry and paraffin-embedded sections.
The normal sebaceous glands and the glands of all the sebaceus nevi were positive for hMLH-1 and hMSH-2.
www.ingentaconnect.com /content/mksg/cup/2003/00000030/00000003/art00003   (429 words)

  
 AllRefer.com - sebaceous gland (Anatomy And Physiology) - Encyclopedia
sebaceous gland[subA´shus] Pronunciation Key, gland in the skin of mammals that secretes an oily substance called sebum.
In humans, sebaceous glands are primarily found in association with hair follicles but also occur in hairless areas of the skin, except for the palms of the hand and soles of the feet.
Generally the sebum is deposited on the hairs inside the follicles and is brought up to the surface of the skin along the hair shaft.
reference.allrefer.com /encyclopedia/S/sebaceou.html   (276 words)

  
 La Licorne Laboratories: about Skin > sebaceous gland
Sebaceous glands can usually be found in hair-covered areas where they are connected to hair follicles, deposit sebum on the hairs, and bring it to the skin surface along the hair shaft.
The structure consisting of hair, hair follicle and sebaceous gland is also known as pilosebaceous unit.
Sebaceous glands are also found in nonhaired areas of lips, eyelids, penis, labia minora and nipples; here the sebum reaches the surface through ducts.
www.labo-lalicorne.com /en/07_about_skin/sebaceous_gland.htm   (207 words)

  
 BIO.COM: Biotechnology Pharmaceutical Therapeutics, Vaccines, Diagnostics, Discovery - Biotech, Pharma, Biomedical
The research focuses on the skin?s sebaceous gland, which is linked to the hair shaft and secretes an oily mixture called sebum.
But until today how the sebaceous gland is formed during development was a matter of debate: one group of scientists proposed that skin stem cells produce the gland and a second group suggested that it had its own progenitor cells.
The sebaceous glands in mice missing Blimp1 were much larger than in normal skin.
www.bio.com /newsfeatures/newsfeatures_research.jhtml?cid=20900014   (559 words)

  
 Acne
Acne is an inflammatory skin disorder of the skin's sebaceous glands and hair follicles that affects about 80% of people between the ages of 12 and 24.
Sebaceous glands are found in large numbers on the face, back, chest and shoulders.
Located in all skin areas except the palms of the hands and soles of the feet, pilosebaceous units consist of sebaceous glands and hair follicles, which are physically connected and usually vary inversely in size.
www.coolnurse.com /acne.htm   (1495 words)

  
 Skin Cancer of the Eyelids - visionchannel
This rare cancer primarily affects the meibomian glands of the eyelids and to a lesser extent the Zeiss glands, which produce the oily layer of the tear film.
Sebaceous gland carcinomas are highly aggressive and frequently metastasize.
The primary risk factor for eyelid cancer, with the exception of sebaceous gland carcinoma, is excessive exposure to sunlight.
www.visionchannel.net /skincancer   (763 words)

  
 Acne-Ltd - About Acne : Cause, Symptoms, Treatment and Cure
Acne vulgaris (common acne) is a condition of the sebaceous glands of the skin.
The plugging of the gland and the action of the bacterium cause an intense inflammatory reaction, resulting in a flhead (open comedone) or a whitehead (closed comedone).
Decrease the abnormal keratinization of the sebaceous gland
www.acne-ltd.com /about.php3   (747 words)

  
 Acne Vulgaris - Causes of Acne
The sebum builds up because the skins pore is blocked and the sebum cannot continue it natural flow from the sebaceous gland to the surface of the skin.
Should the sebaceous gland become over-active, the skin pores can become overwhelmed by the amount of sebum that needs to be ejected through the skin pore.
The sebaceous gland can become over-active as a reaction to increased levels of the male sex hormones (androgens).
www.acne-solve.net /causes-of-acne.php   (278 words)

  
 Sebaceous Gland Tumors
The problem is that in older dogs, what looks like a viral wart is probably a sebaceous gland tumor, while there is a 98% chance it is benign, it will not be going away any time soon.
Sebaceous gland tumors occur on any location, often in large numbers, and usually in older dogs (and occasionally in older cats).
About 50% of sebaceous growths are technically not tumorous and fit into the sebaceous hyperplasia group.
www.marvistavet.com /html/body_sebaceous_gland_tumors.html   (412 words)

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