| PCL | pacing cycle length; persistent corpus luteum; plasma cell leukemia; posterior chamber lens; posteri... |
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| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| PICA | percutaneous transluminal coronary angioplasty; Porch Index of Communicative Abilities; posterior in... |
| PPA | palpation, percussion, auscultation; pepsin A; phenylpropanolamine; phenylpyruvic acid; Pittsburgh p... |
| Sp | the most posterior point on the posterior contour of the sella turcica; species; specific; specimen;... |
| carotid tubercle | The anterior tubercle of the transverse process of the sixth cervical vertebra, against which the carotid artery may be compressed by the finger. Synonym: tuberculum caroticum, Chassaignac's tubercle. (05 Mar 2000) |
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| Ghon's tubercle | Calcification seen in pulmonary parenchyma (usually mid-lung area) and hilar nodes resulting from earlier, usually childhood, infection with tuberculosis. Synonym: Ghon's complex, Ghon's focus, Ghon's primary lesion. (05 Mar 2000) |
| caseous tubercle | A tubercle showing caseous necrosis. Synonym: caseous tubercle. (05 Mar 2000) |
| Chassaignac's tubercle | The anterior tubercle of the transverse process of the sixth cervical vertebra, against which the carotid artery may be compressed by the finger. Synonym: tuberculum caroticum, Chassaignac's tubercle. (05 Mar 2000) |
| mental tubercle | A paired eminence on the mental protuberance of the mandible. Synonym: tuberculum mentale, eminentia symphysis. (05 Mar 2000) |
| gracile tubercle | Tubercle of gracile nucleus, the somewhat expanded upper end of the gracile fasciculus, corresponding to the position of the gracile nucleus. Synonym: tuberculum nuclei gracilis, clava, gracile tubercle, tubercle of nucleus gracilis, tuberculum gracile. (05 Mar 2000) |
| gray tubercle | Greater tubercle of humerus, the larger of the two tubercles next to the head of the humerus; it gives attachment to the supraspinatus, infraspinatus, and teres minor muscles. Synonym: tuberculum majus humeri, greater tuberosity of humerus, tuberculum cinereum. (05 Mar 2000) |
| Rolando's tubercle | A longitudinal prominence on the dorsolateral surface of the medulla oblongata along the lateral border of the tuberculum cuneatum; it is the surface profile of the spinal tract of trigeminal nerve, continuous caudally with the dorsolateral fasciculus (Lissauer's tract). Synonym: ashen tubercle, gray tubercle, Rolando's tubercle. (05 Mar 2000) |
| phallic tubercle | The median elevation just cephalic to the urogenital orifice of an embryo; it is the primordium of the penis of the male or the clitoris of the female. Synonym: phallic tubercle. (05 Mar 2000) |
| pharyngeal tubercle | A projection from the undersurface of the basilar portion of the occipital bone, giving attachment to the fibrous raphe of the pharynx. Synonym: tuberculum pharyngeum. (05 Mar 2000) |
| wedge-shaped tubercle | tubercle of cuneate nucleus |
| Morgagni's tubercle | A small nonarticulating rod of elastic cartilage in the aryepiglottic fold anterolateral and somewhat superior to the corniculate cartilage. Synonym: cartilago cuneiformis, Morgagni's cartilage, Morgagni's tubercle, Wrisberg's cartilage. (05 Mar 2000) |
| Whitnall's tubercle | A small elevation on the orbital surface of the zygomatic bone, just within the orbital margin, about 1 cm below the zygomaticofrontal suture; it gives attachment to the lateral check ligament, the lateral palpebral ligament, and the suspensory ligament of the eyeball. Synonym: eminentia orbitalis ossis zygomatici, orbital eminence of zygomatic bone, Whitnall's tubercle. (05 Mar 2000) |
| Muller's tubercle | A median protuberance projecting into the embryonic urogenital sinus from its dorsal wall; it is formed from the fused caudal ends of the paramesonephric ducts and is the first evidence of the embryonic uterus and vagina. Synonym: sinus tubercle. (05 Mar 2000) |
| Wrisberg's tubercle | A rounded eminence on the posterior part of the aryepiglottic fold, formed by the underlying cuneiform cartilage. Synonym: tuberculum cuneiforme, Wrisberg's tubercle. (05 Mar 2000) |