Introduction: As highly specific molecular biology-based techniques may not be sensitive enough for the diagnosis of American tegumentary leishmaniasis (ATL), clinicians frequently rely on immunological tests before treatment initiation. Hence, the correct combination of diagnostic tests is imperative for ATL diagnosis. We aimed to evaluate the accuracy of the Montenegro (Leishmanin) skin test (MST) in polymerase chain reaction (PCR)-negative patients to accurately detect ATL. Methods: Patients with a clinical picture compatible with ATL were divided into ATL (confirmed by lesion smear, culture indirect immunofluorescence, and/or histopathology) and no-ATL (diseases that can mimic leishmaniasis) groups. Conventional PCR for the minicircle kDNA of Leishmania was performed, and the MST was carried out for PCR-negative patients. Results: Ninety-nine patients were included in this study, including 79 diagnosed with ATL (6 with mucocutaneous leishmaniasis) and 20 without ATL (no-ATL group). The MST showed a high sensitivity of 90.0% (95% confidence interval [CI] = 69.90-97.21) in PCR-negative patients that was 10% higher than the sensitivity reported in PCR-positive population (79.66%; 95% CI = 67.73-87.96). Conclusions: One of the most important reasons for PCR negativity among patients with active ATL is the presence of a strong cellular immunological response, especially in chronic and mucocutaneous leishmaniasis. This reinforces the considerable utility of the tests that detect cellular responses against Leishmania antigens such as the MST in PCR-negative patients when the performance in screening situations is questionable.

Uterine leiomyomas are benign tumors that develop from smooth muscle tissue and are present in up to 77% of women in menacme. They are often asymptomatic but can cause pelvic pain, compression, abnormal uterine bleeding, and degeneration. We present the first case report of a perimenopausal woman who exhibited complete and spontaneous expulsion of uterine fibroids without embolization or use of medication. She complained of a mass extruding from the vaginal orifice associated with bleeding and pain for a couple of hours. The anatomopathological findings showed a myomatous lesion. Complete expulsion of a uterine fibroid is a rare condition that may be associated with profuse hemorrhage and can pose a risk to the patient. When it occurs during perimenopause, it can mimic several clinical conditions. Therefore, gynecologists must remain alert to make the correct diagnosis and treatment.