left - loca
- left (right) adrenal
- left (right) eye
- left (right) heart chamber
- left (right) hypochondrium
- left (right) lower lobe of the lung
- left (right) main bronchus
- left (right) sided colitis
- left (right) upper lobe of the lung
- left (rignt) thyroid lobe
- left drain
- left occipito-anterior (LOA)
- left occipito-posterior (LOP)
- left occipito-transverse (LOT)
- left sacro-anterior (LSA)
- left sacro-posterior (LSP)
- left sacro-transverse (LST)
- left sided (right sided) renal colic
- left-sided hemicolectomy
- legal [medicine] diagnosis
- Legg-Calve-Perthes' disease
- leiomyoma
- leiomyosarcoma
- Leis's disfiguring rhynopharyngitis
- LeishmanDonovan's disease
- Leishmaniasis
- leishmanioma
- length of an adrenal
- lens
- Lens
- lens ectopia
- lenticonus
- lenticular astigmatism
- lenticular cataract
- lenticular chalcosis
- lenticular lens
- lenticular papule
- lentigo
- leonine facies
- leopard skin
- leper house
