Lacrimal caruncle

Lacrimal caruncle
Front of left eye with eyelids separated. Caruncula visible and labeled at left.
Details
Identifiers
Latin	Caruncula lacrimalis
TA	A15.2.07.049
FMA	77672
*Anatomical terminology* [edit on Wikidata]

The lacrimal caruncle, or caruncula lacrimalis, is the small, pink, globular nodule at the inner corner (the medial canthus) of the eye. It is made of skin covering sebaceous and sweat glands.

With ocular allergies, the lacrimal caruncle and the plica semilunaris of the conjunctiva may be inflamed and pruritic (itchy) due to histamine release in the tissue and tear film.

References

Gray's s227 — The Accessory Organs of the Eye

Additional images

Extrinsic eye muscle. Nerves of orbita. Deep dissection
Small white lesion on lacrimal caruncle, most likely a cyst

The orbit of the eye

Bones	Frontal bone Zygomatic bone Maxillary bone Sphenoid bone Ethmoid bone Palatine bone Lacrimal bone

Muscles	Superior rectus muscle Inferior rectus muscle Lateral rectus muscle Medial rectus muscle Superior oblique muscle Trochlea of superior oblique Inferior oblique muscle

Eyelid	Levator palpebrae superioris muscle Tarsus Medial palpebral ligament Epicanthic fold Meibomian gland Ciliary glands Eyelash Palpebral fissure Canthus Gland of Zeis

Lacrimal apparatus	Krause's glands Lacrimal canaliculi Lacrimal caruncle Lacrimal gland Lacrimal lake Lacrimal papilla Lacrimal punctum Lacrimal sac Nasolacrimal duct

Other	Eyebrow Conjunctiva Plica semilunaris Orbital septum Periorbita Suspensory ligament of eyeball Tenon's capsule

This article is issued from Wikipedia - version of the 8/10/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.