ABSTRACT
A 26-year-old male presented with a left upper abdominal mass of one year's duration. Ultrasonography revealed a cystic lesion arising from the lower pole of the spleen. Total splenectomy was done and pathological examination of the cyst confirmed a true cyst with mesothelial lining without squamous metaplasia. The epithelial linings of these true cysts ranged from flattened low cuboidal, low columnar to squamous type and unilayered or stratified. The pathogenetic hypotheses as well as clinicopathological features of this rare lesion, which is usually found in children and young adults, were reviewed.
Subject(s)
Cysts , Splenic Diseases , Adult , Cysts/diagnostic imaging , Cysts/pathology , Humans , Male , Splenic Diseases/diagnostic imaging , Splenic Diseases/pathology , UltrasonographyABSTRACT
A primary testicular tumour in a 62 year old man was found to be a plasmacytoma on histopathological examination without any extra testicular disease prior to or subsequent to orchiectomy, fulfilling the criteria for the primary extramedullary plasmacytoma. Such cases are extremely rare. Evaluation of such a case was discussed and the relevant literature reviewed.
Subject(s)
Plasmacytoma/pathology , Testicular Neoplasms/pathology , Humans , Male , Middle Aged , Orchiectomy , Plasmacytoma/surgery , Testicular Neoplasms/surgeryABSTRACT
Dry seeds of rice varieties 'T(N)1', 'IR 8' and 'Sona', with stabilised moisture content and presoaked in distilled water, were treated with chemical mutagens MMS, dMS, dEMS and dES with the purpose of evaluating chlorophyll mutation frequency and spectrum. In the M2 generation, mutants occurred in 24 lines of 'T(N)1; 94 lines of 'IR 8' but only in six of 'Sona'. They include albino, viridis, xantha and other categories of which viridis was predominant. dES was found to be most effective of all mutagens used in all the three varieties and varietal differences were observed.
ABSTRACT
The seven possible primary trisomics of Petunia (2 n= 14) located in the progenies of triploid, hypertriploid and hypotriploid plants were distinguished from one another and from diploid on the basis of cytological and morphological criteria. They were provisionally named as "Oval", "Semi", "Slender", "Pseudonormal", "Arrow", "Narrow" and "Giant". In three of the trisomics, the extra chromosome was identified for the first time at pachytene stage. Postpachytene studies revealed no precise relationship between the length of extra chromosome and the frequency of multiple association.