Contents
Index
Contents
Authors
ExpSys: non-tumors
ExpSys: tumors
Login
Logout
 

Non-epithelial cysts, pseudocysts

7  Cysts of the skin and subcutis

7.2  Non-epithelial cysts, pseudocysts

7.2.1  Ganglion, synovial cyst

Clinical signs:

  • small pseudocyst, often preceeded by some trauma
  • location: extremities, near joints

Histology:

The wall of the synovial cyst is formed by fibrous tissue, contains amorphous, often myxoid material.

7.2.2  Digital mucous cyst

Clinical signs:

  • location: dorsal aspects of interphalangeal joints
  • translucent small cysts

Histology:

The cyst of dorsal aspects of the fingers, containing mucinous fluid. The wall is formed by the connective tissue, no epithelial lining (pseudocyst, ganglion).

7.2.3  Mucocele

Clinical signs:

  • pseudocyst of the lip, tongue or buccal mucosa
  • in the vicinity of (small or large) salivary glands

Histology:

Pseudocyst with no lining, appears after the rupture of stasis of the secret of a salivary gland. Often accompanied by the inflammation.

7.2.4  Pilonidal sinus

Clinical signs:

  • location: sacral area, namely in hairy men
  • caused by chronic friction and accumulation of the hairs in skin sinus
  • surrounded by the inflammation

Histology:

Inflammation, remnants of the epidermis within the wall of the siunus, hairs. Sometimes only fibrous wall with hairs can be found.

7.2.5  Pseudocyst of the auricle

Clinical signs:

  • location: cartilage of the auricle

Histology:

Tiny pseudocyst surrounded by the cartilage of the auricle.

7.2.6  Parasitic cyst

Histology:

The cyst contains a fluid and parts of a parasite (eg. cysticercosis, where the size of the cyst may be up to 2 cm).


Top of this page


If you have problems running this atlas (eg. the windows with images do not open), you might have been referenced directly inside the atlas from some other web site. Thus you might have skipped some entry detection routines. Please try entering through the main web page of this atlas at: www.muni.cz/atlases