. Tumours, innocent and malignant; their clinical characters and appropriate treatment. as 19 years of age. {After Bramann.) Paterson : he removed a cyst of this kind from the inguinalcanal of a man 35 years of age. The microscopic examinationin this case was very thorough. Dermoids of the labium are very rare : on one occasion Isaw one removed as big as an orange from the right labium ofa woman 40 years of age. It contained the usual pultaceousmaterial and shed hair. The dermoid had burrowed beneaththe deep fascia of the thigh and come into relation Avith thetendon of the adductor lonsfus mus
. Tumours, innocent and malignant; their clinical characters and appropriate treatment. as 19 years of age. {After Bramann.) Paterson : he removed a cyst of this kind from the inguinalcanal of a man 35 years of age. The microscopic examinationin this case was very thorough. Dermoids of the labium are very rare : on one occasion Isaw one removed as big as an orange from the right labium ofa woman 40 years of age. It contained the usual pultaceousmaterial and shed hair. The dermoid had burrowed beneaththe deep fascia of the thigh and come into relation Avith thetendon of the adductor lonsfus muscle. THOU AG 10 DERMOIDS 447 Dermoids of the thorax.—Judging froin tlie few availablerecords, dermoids of the thorax are very uncommon. Theyoccur in two situations—viz. on the anterior aspect of thesternum and in the thoracic cavity. Dermoids on the frontof the sternum are situated in the middle line near thejunction of the manubrium with the gladiolus (Fig. 224); itis not uncommon to find a small cutaneous recess in thissituation exactly in the middle line and resembling the .^. Fig. 225.—Dermoid in the epistemal notch ; it contained hair and pultaceousmatter, and was superficial to the deep cervical fascia. coccygeal sinus. Sternal dermoids have been described byBramann, Cahen, and Glutton. An unusual situation for a dermoid is the episternal notch(Fig. 225), and it is easy to understand that one in thissituation could burrow into the superior mediastinum. At first o-lance it would seem difficult to account for thepresence of a large dermoid within the thorax, but a review ofthe mode of development of the sternum throws much clearlight on the subject. The two lateral halves of the sternumare, in the early embryo, widely separated from each other;gradually they coalesce in the middle line. Every anatomist 448 DERMOIDS is aware that this median coalescence is extremely liable to befaulty, and conditions occur like those which, happening inconnexion with the medullary fold
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectneoplasms, bookyear19
