port-wine mark_ is included in this group.

#Describe the prominent, or elevated, variety of angioma.#

The prominent variety (_venous n[oe]vus_, _angioma cavernosum_, _n[oe]vus
tuberosus_) is variously-sized, often considerably elevated,
clearly-defined, compressible, smooth or lobulated, and of a dark,
purple color; it may, also, be erectile and pulsating. The growth is
usually a single formation, and is met with upon all parts of the body.

#What is the pathology of angioma?#

It is a new growth, consisting of a variable hypertrophy of the
cutaneous and subcutaneous arterial and venous bloodvessels, with or
without an increase of the connective tissue.

#Give the treatment of angioma.#

In some instances, especially in infants, painting the parts repeatedly
with collodion or liquor plumbi subacetatis will act favorably. For
well-established, small, capillary naevi electrolysis or puncturing with
a red-hot needle or with a needle charged with nitric acid may be
employed; for "port-wine mark" frequent and closely contiguous
electrolytic punctures are occasionally followed by a slight diminution
in color. For the _prominent growths_, vaccination, the ligature,
puncturing with the galvano-cautery, and excision are variously resorted
to.

In recent years applications of liquid air and carbon dioxide have proved
of service in some cases.

#Telangiectasis.#

#Describe telangiectasis.#

Telangiectasis consists of a new growth or enlargement of the cutaneous
capillaries, usually appearing during middle adult life, and seated, for
the most part, about the face.

#To what extent may telangiectasis develop?#

It may be limited to a red dot or point, with several small radiating
capillaries (_naevus araneus_, _spider naevus_), or a whole region, usually
the face, may show numerous scattered or closely-set capillary
enlargements or new formations (_rosacea_). The latter is frequently
associated with acne (_acne rosacea_).

The etiology is obscure.

#What is the treatment of telangiectasis?#

Destruction of the vessels by electrolysis or by the knife. (See
treatment of acne rosacea.)

#Lymphangioma.#
(_Synonym:_ Lymphangiectodes.)

#Describe lymphangioma.#

Lymphangioma is a rare disease, consisting of localized dilatations of
the lymphatic vessels, appearing as discrete or aggregated pin-head or
pea-sized, compr