Osseous hydatidosis is a rare occurrence of hydatid disease. Anatomoclinical changes are, however, peculiar to this localization. From the anatomopathologic standpoint, this localization marks the torpid, insidious progression of the parasite into bone tissue, leading to an immediate diffuse, extensive, invasion process, so complete surgical eradication is rarely possible. From the clinical standpoint, whatever the localization may be, we are surprised by the latency of this affection, the patient being treated at an advanced stage, when radiologic lesions are already extensive, and the complications, especially in the spinal area, are severe. Owing to the poor biologic findings, the diagnosis of osseous hydatidosis is still primarily based on roentgenographic findings. Sometimes, however, the diagnosis is established only after surgery. Treatment of osseous hydatidosis is closer to oncologic therapy than to the usual surgical treatment of visceral hydatid cysts. Because of the poor results with medical treatment, osseous hydatidosis must be treated by a radical operation with wide excision, adapted to each localization. In the main, the prognosis of osseous hydatidosis remains poor, especially with spinal and pelvic localizations, which are the most frequent ones. The prognosis and treatment of osseous hydatidosis belong in the same category as a locally malignant lesion.
There is a need for adjuvant imaging techniques that would allow reducing the number of slow Mohs stages. This study aimed to evaluate the use of dermoscopy in the demarcation of basal cell carcinoma (BCC) surgical margins for slow Mohs surgery. This was a retrospective study over 3 years (2016-2019), including patients with BCC excised using slow Mohs surgery. On the basis of the treatment received, the patients were divided into 2 groups: group 1 (28 BCC) and group 2 (26 BCC). In group 2, BCC margins were demarcated using dermoscopy. A total of 54 patients were enrolled in the study. The number of positive lateral margins was significantly lower in the group where BCC margins were demarcated using dermoscopy (19% vs 53%, P = .012). In this group, the number of Mohs stages needed to achieve complete clearance was significantly lower. However, the mean interval between the first Mohs excision and Mohs clearance was not significantly different between the 2 groups (9 ± 4 vs 12 ± 7 days). In conclusion, preoperative dermoscopy is useful for reducing the number of positive lateral margins and the number of slow Mohs stages in treating BCC especially pigmented tumors.
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