Congreso de Anatomía Patológica

Congreso Virtual sobre Anatomía Patológica

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A Forteza^*, Alexandra Gené^*, R Ramos^*, F Terrasa^*, M Company^*, Ramón Canet^*
* Hospital Universitario Son Dureta. Palma de Mallorca ESPAÑA

Resumen

Female fetus, stillborn at 27 weeks’ gestation, who presented a generalized subcutaneous edema.

A female fetus, stillborn at 27 weeks’ gestation, who presented a generalized subcutaneous edema without other malformations.

MACROSCOPIC FINDINGS
In the macroscopic exam we found in the thoracic cavity a pleural effusion and a big growing expansive mediastinal neoplasm that measured 8 cm and weighted 56 g. The cut surface showed fleshy appearance and some cystic areas.
The lungs were small, weighted 10 g but had a correct lobulation.

ANTERIOR MEDIASTINAL IMMATURE TERATOMA

MICROSCOPIC FINDINGS

The mediastinal neoplasm was composed of immature and mature tissues representing each of the three layers derived from the embryonic disk. We found dermal structures and neural, gastrointestinal, bronchial, muscular and fatty tissues with some cystic lesions. We observed some immature neuroectodermic areas with neuroepithelial cells forming tubules and rosettes. Surrounding the neoplasm atrophic thymic rests could be found.

DIAGNOSIS:

1. HYDROPS FETALIS.

2. ANTERIOR MEDIASTINAL IMMATURE TERATOMA

3. BILATERAL PULMONARY HYPOPLASIA CAUSED BY INTRATHORACIC COMPRESSION

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Figura 1 -

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Figura 2 -

1 - Froberg MK, Brown RE, Maylock J, Poling E. In utero development of a mediastinal teratoma: a second-trimester event. Prenat Diagn. 1994 Sep;14(9):884-7.

2 - Weinraub Z, Gembruch U, Fodisch HJ, Hansmann M. Intrauterine mediastinal teratoma associated with non-immune hydrops fetalis. Prenat Diagn.1989May;9(5):369-72.

- Bernardo Weil Lara (11/10/2005 18:08:15)

Immature congenital teratoma. Were there any area of endodermal sinus tumour? Teratoma congénito inmaduro. Ha observado focos de tumor del seno endodérmico?

- Mirta Garcia Jardon (27/10/2005 8:11:02)

In one case of the congress about a mediastinal mass I made a comment about extragonadal localization of germ cell tumours, and this is a good example. Pictures are excellent, mainly in the area including thymus. Hice un comentario en un caso del congreso con una masa mediastinal acerca de la localización extragonadal de los tumores de células germinales, y este es un buen ejemplo. Las fotos son magnífica, sobre todo la que incluye parte del timo.

- Cesáreo Corbacho Cuevas (03/11/2005 20:58:03)

It is a very interesting case with splendid images. Thanks a lot and warmest regards. Un caso muy interesante con unas imagenes esplendidas. Muchas gracias y un saludo muy cordial.

- Maribel DONASTORG (10/11/2005 13:22:13)

Muy interesante caso, una imagenes histologicas magnificas. Maribel Donastorg

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