costal margin

(redirected from Left Costal Margin)
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costal margin

[TA]
that portion of the inferior aperture of the thorax formed by the articulated cartilages of the seventh to tenth (that is, false) ribs.
Synonym(s): arcus costalis [TA], costal arch ☆ , arcus costarum

costal margin

The lower (abdominal) border of the front of the rib cage formed by the costal cartilages of ribs 7 to 10.
See also: margin
References in periodicals archive ?
Physical examination showed discrete hepatomegaly and significant splenomegaly, about 20 cm below the left costal margin. He reported having lived in the cities of Londrina/PR and Itaituba/PA, where he worked in mining for about seven months a year.
Her physical examination is unremarkable, with the exception of her grade 2/6 systolic ejection murmurs at the upper right sternal border and an enlarged spleen, which spans 10 cm below her left costal margin. Her liver span is normal.
Physical examination was notable for a palpable spleen 5 fingerbreadths below the left costal margin. No palpable adenopathy was present.
The abdomen was nontender, the liver was palpated 4 cm below the right costal margin, and the spleen was markedly enlarged, firm, and extended 26 cm below the left costal margin (Figure 1).
Per Abdomen Exam--Massive Splenomegaly reaching Up To Umbilicus 15 Cm Below Left Costal Margin.
Spleen was palpable 1 cm below the left costal margin. Other systemic examination was normal.
The spleen was palpable 3 cm below the left costal margin. On central nervous examination, he was conscious and well-oriented in time, place and person.
Spleen size regressed to 2 cm below the left costal margin.
His anemia progressed to Hb 68 g/L after two weeks, at which time the spleen became palpable up to 4 cm below the left costal margin. Peripheral blood smear showed predominantly normocytic, normochromic RBCs with small numbers of teardrop poikilocytes and nucleated RBCs.
On examination, he had pallor, splenomegaly 3 cm below the left costal margin, and no lymphadenopathy or bleeding manifestations.