PubMed · 4203484
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J S Chappell, M Dinner. 1973-10-13. Enteric duplications.. https://pubmed.ncbi.nlm.nih.gov/4203484/
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A 63-year-old man visiting a physician for slight dyspnea, attributed to a lump on his neck, was found in ultrasonography and computed tomography to have a cyst extending from the left lobe of the thyroid gland to the superior mediastinum. Radiography showed right deviation of the trachea. The cyst disappeared after fine-needle aspiration, but cyst fluid subsequently reaccumulated and he was admitted to our hospital. No abnormalities were detected in tests of thyroid and parathyroid function or blood chemical analysis. The cyst was surgically removed and diagnosed as a nonfunctioning parathyroid cyst, based on the high-intact parathyroid hormone in cyst fluid. The patient recovered fully and has shown no recurrence in the 11 months to data since surgery.
PURPOSE: We determined by histopathological studies whether there is an etiological difference in 2 distinct categories of müllerian duct remnant diseases. In addition, we clarified the nomenclature of these diseases. MATERIALS AND METHODS: We recently performed radical prostatectomy in a patient with prostate cancer associated incidentally with a so-called müllerian duct cyst in the prostatic midline. The specimen was examined by pathological and immunohistochemical testing with special attention to the relationship of the cyst and utricle. We also investigated the histology of so-called enlarged prostatic utricles or vagina masculinus extirpated from patients with severe hypospadias or intersex disorder. RESULTS: The round cyst removed with the prostate seemed to arise from the verumontanum and it contained fluid with a high concentration of prostate specific antigen. Histological and immunohistochemical examination of its lining epithelium demonstrated that cyst characteristics were identical to those of the prostatic utricle. On the other hand, pouches extirpated from patients with pediatric problems were lined by squamous epithelium. CONCLUSIONS: The so-called müllerian duct cyst appeared to originate from the prostatic utricle, and so should be termed a utricular cyst or cystic utricle. Conversely the so-called enlarged prostatic utricle should be termed a vagina masculinus or male vagina. The term müllerian duct remnant, which would include these 2 abnormalities, may usefully be replaced by the term utricular abnormalities.
We present a case of an 8-month-old boy with total situs inversus, who had a giant dumbbell-shaped gastroenteric cyst. The concurrence of these entities has never been reported previously. The cyst occupied a large space in the mediastinum and involved both hemithoraces.