Set 8

Morphopathology Set 8 Melanocytic Tumors by Qamar Ahmad

Pancreas and Duodenum Multiple brown black nodules of different size. Big nodules between folds covered by a mucosa.

Pancreas and Duodenum Multiple brown black nodules of different size. Big nodules between folds covered by a mucosa.

Pancreas and Duodenum Multiple brown black nodules of different size. Big nodules between folds covered by a mucosa.

Pancreas and Duodenum Multiple brown black nodules of different size. Big nodules between folds covered by a

Cut section through small Intestine. Multiple nodules, brown black, covered by normal mucosa. Some of them are ulcerated.

Cut section through small Intestine. Multiple nodules, brown black, covered by normal mucosa. Some of them are ulcerated.

Cut section through small Intestine. Multiple nodules, brown black, covered by normal mucosa. Some of them are ulcerated.

Spreading of the tumor by way of mesentery. Block of Lymph nodes. Malignant melanoma is only the tumor which evolves into metastasizing the digestive tract.

Spreading of the tumor by way of mesentery. Block of Lymph nodes. Malignant melanoma is only the tumor which evolves into metastasizing the digestive tract.

Spreading of the tumor by way of mesentery. Block of Lymph nodes. Malignant melanoma is only the tumor which evolves into metastasizing the digestive tract.

Liver Metastasis Multiple nodules of different size. Round in shape without capsule, brown/black with many malignant metastatic melanomas.

Liver Metastasis Multiple nodules of different size. Round in shape without capsule, brown/black with many malignant metastatic melanomas.

Metastasis of the melanoma from the eyeball. Posterior part of the eye. Regions which can be involved or give rise to melanoma include Retina, Iris, Ciliary process. The dissemination can be wide and spread posterior to the occipital/visual region of the brain. Round black patches can be observed on the posterior

Metastasis of the melanoma from the eyeball. Posterior part of the eye. Regions which can be involved or give rise to melanoma include Retina, Iris, Ciliary process. The dissemination can be wide and spread posterior to the occipital/visual region of the brain. Round black patches can be observed on the posterior

Metastasis of the melanoma from the eyeball. Posterior part of the eye. Regions which can be involved or give rise to melanoma include Retina, Iris, Ciliary process. The dissemination can be wide and spread posterior to the occipital/visual region of the brain. Round black patches can be observed on the posterior

Metastasis of the melanoma from the eyeball. Posterior part of the eye. Regions which can be involved or give rise to melanoma include Retina, Iris, Ciliary process. The dissemination can be wide and spread posterior to the occipital/visual region of the brain. Round black patches can be observed on the posterior

Melanoma of the eyeball. Either originated in this one or is metastasized. Posterior part of the eye is usually involved. Origin is in Retina, Iris or Ciliary process.

Melanoma of the eyeball. Either originated in this one or is metastasized. Posterior part of the eye is usually involved. Origin is in

Melanoma of the eyeball. Either originated in this one or is metastasized. Posterior part of the eye is usually involved. Origin is in Retina, Iris or Ciliary process.

Melanoma of the eyeball. Either originated in this one or is metastasized. Posterior part of the eye is usually involved. Origin is in Retina, Iris or Ciliary process.

Malignant melanoma developed at skin. Acquired nevus are small lesion < 1 cm in diameter. They become larger if they are malignant. They are irregular and there is variation of the pigments. Usually the superficial

Malignant melanoma developed at skin. Acquired nevus are small lesion < 1 cm in diameter. They become larger if they are malignant. They are irregular and there is variation of the pigments. Usually the superficial

Malignant melanoma developed at skin. Acquired nevus are small lesion < 1 cm in diameter. They become larger if they are malignant. They are irregular and there is variation of the pigments. Usually the superficial

Metastasis in the regional lymph nodes The nodes are enlarged with brown/black areas representing the melanomas.

Metastasis in the regional lymph nodes The nodes are enlarged with brown/black areas representing the melanomas.

Metastasis in the regional lymph nodes The nodes are enlarged with brown/black areas representing the melanomas.

Melanoma at the face. Variable pigmentation.

Melanoma at the face. Variable pigmentation.

Congenital nevus. Benign tumor of melanocytes on the posterior thorax. Brown, hairy and it has a melanoma at one side. The regional lymph nodes are metastasized with melanoma.

They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration

Congenital nevus. Benign tumor of melanocytes on the posterior thorax. Brown, hairy and it has a melanoma at one side. The regional lymph nodes are metastasized with melanoma.

They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration

Congenital nevus. Benign tumor of melanocytes on the posterior thorax. Brown, hairy and it has a melanoma at one side. The regional lymph nodes are metastasized with melanoma.

They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration

Congenital nevus. Benign tumor of melanocytes on the posterior thorax. Brown, hairy and it has a melanoma at one side. The regional lymph nodes are metastasized with melanoma.

They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration

Congenital nevus. Benign tumor of melanocytes on the posterior thorax. Brown, hairy and it has a melanoma at one side. The regional lymph nodes are metastasized with melanoma.

They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration

Congenital nevus. Benign tumor of melanocytes on the scalp. This one is giant >10cm in diameter, Hairy and acromic(color of the skin). They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration -Pain -2nd Lesion

Congenital nevus. Benign tumor of melanocytes on the scalp. This one is giant >10cm in diameter, Hairy and acromic(color of the skin). They usually have a large base which is irregular(cerebriform). The margins are regular though. The transformation ‘borderline’ for melanomas to evolve into a malignant include the following factors: -Irregular margins, -Variable pigmentation -Ulceration -Pain -2nd Lesion

Tumor in the Testes. It is solid and matured in tissues. There are multiple microcyticspaces and islands of hyaline cartilages interspersed with solid areas. The spaces are lined by respiratory epithilum, fibrous tissue and cartilage.

Tumor in the Testes. It is solid and matured in tissues. There are multiple microcyticspaces and islands of hyaline cartilages interspersed with solid areas. The spaces are lined by respiratory epithilum, fibrous tissue and cartilage.

Tumor in the Testes. It is solid and matured in tissues. There are multiple microcyticspaces and islands of hyaline cartilages interspersed with solid areas. The spaces are lined by respiratory epithilum, fibrous tissue and cartilage.

Microcytic teratoma of the Testes. Same as the previous one.

Microcytic teratoma of the Testes. Same as the previous one.

Microcytic teratoma of the Testes. Same as the previous one.

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands,

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands,

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands,

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands,

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands,

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands, sebum. The hair have gone wavy inside, forming thus the pattern as shown in the picture.

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands, sebum. The hair have gone wavy inside, forming thus the pattern as shown in the picture.

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands, sebum. The hair have gone wavy inside, forming thus the pattern as shown in the picture.

Teratoma in the ovaries. The origin of the tumor is illdefined. It usually originates in all the 3 germ layers of the body (mesoderm, ectoderm and endoderm). It is benign with different kinds of maturation tissues. In ovaries, it usually is in the cystic form, except testes where the teratoma is ‘solid’. It has a wall and the content originates on the inner surface by epidermis. The outside is from dermis. In the cavity can be observed hair, karatin, sebaceous glands, sebum. The hair have gone wavy inside, forming thus the pattern as shown in the picture.

Don’t know what this is but I think it’s a pigmented nevus.

Don’t know what this is but I think it’s a pigmented nevus.

Don’t know what this is but I think it’s a pigmented nevus.