A lesion may be tumorous or non- tumorous in nature. Lesions of the pineal region are rare compared to other parts of the brain. It plays a role in the entrainment of the circadian rhythms of an organism by producing melatonin, a functionally important hormone. Developmentally, the pineal gland is considered as a part of the epithalamus. The pineal gland is a small pinecone-shaped and functionally endocrine structure located in the epithalamus region. Naqvi, Syeda Rupareliya, Chintan Shams, Abdullah Hameed, Maria Mahuwala, Zabeen Giyanwani, Pirthvi Raj Pineal Gland Tumor but not Pinealoma: A Case Report. It is followed by a very important and detailed description of the microsurgical anatomy of the pineal region.« less The first of these gives a historical review of the development of surgical techniques - from the first attempt by Horsley in 1905 to the microsurgical techniques of today.
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Themore » next nine chapters deal with biopsy and surgery of these tumors and how to manage the patient. With the exception of the chapter on diagnostic radiology of pineal tumors, which seems somewhat superficial, these five chapters summarize current knowledge about the nature of these complex lesions and their symptomatology very well. There is also one chapter on intracranial germ cell tumors (natural history and pathogenesis) and one on the normal function of the pineal gland. After the first, introductory, chapter, three chapters treat the pathology and diagnosis of pineal tumors.
The aim of this volume is to review the pertinent literature dealing with pineal tumors and thus aid in the handling of these rather uncommon lesions. Biopsy of pineal region tumors is now feasible andmore » is recommended for treatment planning.« lessĭiagnosis and treatment of pineal region tumors Germinomas have the best response to radiation therapy. They had variable margination, attentuation, calcification, and suprasellar extension. These tumors included germinomas, teratocarcinomas, hamartomas, and other varieties.
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A series of nine biopsy-proved pineal gland and eight other presumed tumors is presented that illustrates their remarkable heterogeneity in both histopathologic and CT appearance. Some authors have asserted that the CT appearance of many pineal tumors is virtually pathognomonic. While several computed tomographic (CT) studies of posterior third ventricular neoplasms have included descriptions of pineal tumors, few reports have concentrated on these uncommon lesions. Pineal region tumors: computed tomographic-pathologic spectrumįutrell, N.N.
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