Page 1 of 1: CATAMENIAL PNEUMOTHORAX

nadu · Credits: 17768 My Scrapbook

Q. Catamenial Pneumothorax develops:

1.When air escapes from fall.tubes & reaches pleural space.

2.In patients experiencing lobar collapse sec. to bronchial obstruction.

3.As a result of direct trauma.

4.From migration of air across the bronchial surface to mediastinum.

I know about catamenial epilepsy:increased frequency of epi. during menses, but what is catamenial pneumothorax???

tallpox · Credits: 12032 My Scrapbook

This is a rare condition which often involves endometriosis of the diaphragm, causing the lung to collapse during menses.

nadu · Credits: 17768 My Scrapbook

then what is the ans?

1 or 2

decembermist · Credits: 41211 My Scrapbook

catamenial pneumothorax

FEMALE of childbearing age
(** most spont. ptx's occur in males)

onset of menses +/- 3 days

assoc w/ intrathoracic endometriosis

there are two distinct routes of spread of endometrial tissue to the thorax

.The first, by far the most common, is the transperitoneal route front the pelvis to the diaphragm, which accounts for diaphragmatic pores and catamenial pneumothorax.

The other, quite rareis the hematogenous route, by which uterine endometrial tissue and/or decidua literally "metastasize" to the lung via the venous system, which drains the uterus.

In this latter instance, the result is the appearance of pulmonary nodules or deposits, which are clinically manifested by hemoptysis, not by pneumothorax or hemothorax.

The pathologic examination of resected specimens proves them to be endometrial or decidual tissue metastatic to the pulmonary parenchyma.

The monthly periodicity of catamenial hemoptysis, sometimes referred to as vicarious menstruation, is due to the cyclic hormonal activity of the metastatic endometrial nodule in the lung parenchyma. (2,3) It does not cause catamenial pneumothorax.

decembermist · Credits: 41211 My Scrapbook

intrathoracic free-air leaks from the lung due to focal defect(s) caused by a breakdown of the pleural endometrial tissue that has been absorbed from the stomata.

**SNIP**

after reading this...im confused...can v go with a)

im not sure

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prodipto · Credits: 300 My Scrapbook

none of the above

suneet · Credits: 6840 My Scrapbook

maad · Credits: 327 My Scrapbook

??a

Vagus · Credits: 671 My Scrapbook

Absolutely bamboozled !!!!

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