Littoral cell angioma

Littoral cell angioma, abbreviated LCA, is an uncommon benign vascular lesion of the spleen.

Littoral cell angioma
Diagnosis in short
Littoral cell angioma. H&E stain.
LM	anastoming, small vascular channels, cystic spaces - may have papillary projections
LM DDx	hemangioendothelioma, angiosarcoma, hemangiopericytoma, splenic hamartoma
IHC	lining cells: CD68 +ve, CD31 +ve, CD34 -ve, CD8 -ve
Site	spleen
Clinical history	weight loss
Signs	pyrexia (fever), splenomegaly
Prevalence	rare
Radiology	solitary hypodense lesion
Prognosis	benign

Angioma, in general, is dealt with in vascular malformations.

General

Features:

• Rare.
• Benign.

Clinical:

• Pyrexia (fever), splenomegaly, weight loss, solitary hypodense lesion on imaging.

Note:

• Littoral cells = line vascular channels of the red pulp.
  • Littoral = related to shore.

Microscopic

Features:

• Anastoming, small vascular channels.
• Cystic spaces.
  • May have papillary projections.

DDx:

• Vascular lesions:
  • Hemangioendothelioma.
  • Angiosarcoma.
  • Hemangiopericytoma.
  • Splenic hamartoma.

Images

• 

  LCA - very low mag. (WC)

• 

  LCA - low mag. (WC)

• 

  LCA - intermed. mag. (WC)

• 

  LCA - high mag. (WC)

• 

  LCA - very high mag. (WC)

www:

• LCA - low mag. (webpathology.com).
• LCA - high mag. (webpathology.com).

IHC

Features:

• CD68 +ve.
• CD31 +ve

Others:

• CD34 -ve (normally in red pulp).
• CD8 -ve (normally in red pulp).
• Factor VIII +ve.

See also

• Spleen.