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. 2015 Jul 10:1:17.
doi: 10.1051/sicotj/2015016.

Osteoid osteoma (OO) of the coracoid: a case report of arthroscopic excision and review of literature

Saumitra Goyal  1 , Hatem Galal Said  1
Affiliations

Osteoid osteoma (OO) of the coracoid: a case report of arthroscopic excision and review of literature

Saumitra Goyal et al. SICOT J. .

Abstract

Osteoid osteoma (OO) of the coracoid is a rare entity that may present with variable symptoms from shoulder leading to delay in diagnosis and treatment. We present the clinical and radiological findings and management of one such case along with a review of similar cases reported in the literature. There was a delay of 2 years in diagnosis, which was later confirmed by computed tomography in addition to magnetic resonance imaging (MRI). The lesion was accessed arthroscopically and excised by unroofing and curettage. "OO" should be included in the differential diagnosis of shoulder pain in young patients not responding to long-term conservative treatment. Arthroscopic excision and curettage provide a good choice for management, with low morbidity and rapid recovery.

Keywords: Arthroscopic excision; Coracoid; Osteoid osteoma; Shoulder; Technique.

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Figures

Figure 1.
Figure 1.
(A and B) T2-weighted MRI images showing high signal intensity within the glenoid around the lesion with low signal, (C) T1-weighted sagittal image reveals a low signal lesion at the base of the corocoid.
Figure 2.
Figure 2.
(A–C) CT scan in sagittal, transverse and coronal planes reveals the typical lesion of osteoid osteoma (OO) with a central nidus and surrounding sclerotic bone (to localize lesion pre-operative and plan excision).
Figure 3.
Figure 3.
Postoperative image showing portals used for arthroscopic approach to the base of coracoid (a and b) standard anterior portal, (c) additional anterior portal just lateral to coracoid process, (d) standard posterior portal, CL – clavicle, AC – acromion, arrowhead – previous arthroscopy scar, dotted circle – coracoid process
Figure 4.
Figure 4.
Arthroscopic images of excision of osteoma. (A) De-roofing of the lesion by arthroscopic burr, (B) after removal of anterior wall revealing the hypervascular nidus (arrowhead) at the base of coracoid (CR) medial to the glenoid (GD), (C) after complete removal of lesion there is healthy cancellous bone at the base.
See this image and copyright information in PMC

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